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, Author: hahax@verizon.net in All Forums

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1: Planar Speaker Asylum, RE: Lirpa Labs amp (0.00)
Posted by hahax@verizon.net on 2021-04-01, 20:57:24 (72.88.210.112)
I thought Lirpa was out of business. Great to see them back. I always looked forward to the April issue of Audio Magazine for the next great Lirpa innovation. But with the demise of Audio mag there's .......

2: Amp/Preamp Asylum, RE: Normally I would agree (0.00)
Posted by hahax@verizon.net on 2021-03-29, 19:26:32 (72.88.210.112)
But on music with great dynamic swings, usually classical, even though the average power is a few watts, the peaks can easily be over 10 times that so the peaks will be clipped and fidelity diminished .......

3: Amp/Preamp Asylum, RE: would you prefer 8W in Class A or 80W in Class A/B (0.00)
Posted by hahax@verizon.net on 2021-03-28, 20:14:24 (72.88.210.112)
A good 80 watt AB amp any day unless you're talking about 100dB efficiency. The 8 watt class A will sound really good as long as it isn't a low efficiency speaker. It will be smooth but the dynamics w .......

4: General Asylum, RE: Classical WAF (0.00)
Posted by hahax@verizon.net on 2021-03-24, 20:52:39 (72.88.210.112)
Dynamics is one of the important characteristics of classical music. I recall an early RCA Dynagroove version of Bolero that messed with the increasing loudness of the piece and it wasn't the same mus .......

5: Cable Asylum, RE: Just got these Fidelium speaker cables (0.00)
Posted by hahax@verizon.net on 2021-03-23, 20:49:56 (72.88.210.112)
Met the designer 20 years ago at CES west and spent a few days with him. Impressed me as a really good guy. .......

6: Critic's Corner, RE: How does it work with Harley, Valin, and Heilbrun? (0.00)
Posted by hahax@verizon.net on 2021-03-23, 20:48:26 (72.88.210.112)
This is nothing new. It goes back decades. You just read the reviews and hopefully hear some of the gear and then decide what the reviews are worth to you. You can also question relationships of revie .......

7: Planar Speaker Asylum, RE: There must be some correlation between measurement and hearing though ? (0.00)
Posted by hahax@verizon.net on 2021-03-20, 20:40:44 (72.88.210.112)
Where have the standard measurements, frequency response, distortion, etc. ever described the sound of a speaker, especially does it sound 'live' rather than like a clean wide band radio? And I believ .......

8: Digital Drive, RE: I believe miniDSP offers something similar. (0.00)
Posted by hahax@verizon.net on 2021-03-20, 20:30:05 (72.88.210.112)
The Hypex looks a bit more convenient for a 3 way and more power, but thanks I'll look into it especially since a friend I trust seems to think Mini DSP does digital better. .......

9: Digital Drive, Hypex Amps Used For Active Speakers (0.00)
Posted by hahax@verizon.net on 2021-03-19, 22:01:04 (72.88.210.112)
Has anyone used the Hypex amps which have in board digital on each amp module to make an active speaker using the on board digital for the crossovers? I'd love to hear what kind of performance resulte .......

10: Digital Drive, RE: CD media composition difference preference? (0.00)
Posted by hahax@verizon.net on 2021-03-19, 19:28:41 (72.88.210.112)
I absolutely believe CD composition can make a difference, big enough to hear within seconds of changing a disc. At a Stereophile show in New York, my friend, George Bischoff went to the Meridian spea .......

11: Digital Drive, RE: How can a transport make such a big difference? (0.00)
Posted by hahax@verizon.net on 2021-03-18, 20:44:18 (72.88.210.112)
And to add to what seems to be the mystery put some of the new feet to control vibration under the transport. I did with something called Pontoons which look like plastic cylinders on their sides and .......

12: Speaker Asylum, RE: Totem Mani 2 Sub woofer match (0.00)
Posted by hahax@verizon.net on 2021-03-09, 20:36:42 (72.88.210.112)
High passing the main speakers can make them cleaner and improve the mid bass and lower mids. At least it did in my system, different than yours) and in my case with a passive crossover unlike the act .......

13: Speaker Asylum, RE: Are there established metrics for speaker specifications ? (0.00)
Posted by hahax@verizon.net on 2021-03-05, 20:02:26 (72.88.210.112)
Thanks for the memories. I was friends with Gordon when he was in Philadelphia and long distance after that. He was a great guy and a superb audio person. .......

14: Speaker Asylum, RE: Are there established metrics for speaker specifications ? (0.00)
Posted by hahax@verizon.net on 2021-03-04, 20:28:38 (72.88.210.112)
Those are very complete standard specs for the Aria. And at best they only tell you it's probably a decent speaker. Frequency response is secondary to sounding live:move a seat in a concert hall and t .......

15: High Efficiency Speaker Asylum, RE: No imaging below 450 HZ? Is Paul Klipsch correct? (0.00)
Posted by hahax@verizon.net on 2021-03-04, 19:50:05 (72.88.210.112)
I didn't say it didn't work, nor did Percy just that there were significant compromises with wood and folding. I could be improved. .......

16: High Efficiency Speaker Asylum, RE: No imaging below 450 HZ? Is Paul Klipsch correct? (0.00)
Posted by hahax@verizon.net on 2021-03-04, 19:48:16 (72.88.210.112)
No one cared about imaging in mono days. Even in stereo days it took a while until imaging was well understood. There was no reason to learn before stereo. .......

17: Vintage Asylum, RE: AR XA Turntable - Restoration source? (0.00)
Posted by hahax@verizon.net on 2021-03-04, 19:35:11 (72.88.210.112)
On the inside of the bearing housing of the arm is a small pin. It damps the downward arm movement as the arm drops. But it is easily excited by record warp and then the arm misstracks. The AR arm was .......

18: High Efficiency Speaker Asylum, RE: No imaging below 450 HZ? Is Paul Klipsch correct? (0.00)
Posted by hahax@verizon.net on 2021-03-03, 20:43:07 (72.88.210.112)
There is no imaging at very low frequencies but 450Hz is near the middle of the 10 octave music range. There is definitely imaging there and it shows in todays speakers. The Klipschorn was designed in .......

19: Speaker Asylum, RE: Allison (0.00)
Posted by hahax@verizon.net on 2021-03-02, 19:40:31 (72.88.210.112)
One way to control room interactions is to limit the speaker placement and design for the placement. That's what Allison did. He was especially interested in a frequency dip a bit above 100 Hz and pla .......

20: Tweakers' Asylum, RE: Basic anti-resonance principles: damping and bracing (0.00)
Posted by hahax@verizon.net on 2021-02-26, 20:29:14 (72.88.210.112)
when bracing panels you are looking to stiffen them, raise the resonant frequency. If the bracing forms a rectangle on the braced panel, it is the shorter dimension that sets the stiffness. So as an e .......

21: Speaker Asylum, RE: Quite depressing (0.00)
Posted by hahax@verizon.net on 2021-02-25, 20:35:23 (72.88.210.112)
Nothing is perfect and we all have different tastes meaning the factors in reproduction we value most and what must be there for us and what we listen for first. Perhaps the most important factor in o .......

22: Tweakers' Asylum, RE: Speaker materials (0.00)
Posted by hahax@verizon.net on 2021-02-25, 20:26:00 (72.88.210.112)
not true, MDF is the go to cabinet material. cheaper speakers use vinyl finish. as the price goes up , real veneer is used. .......

23: Tweakers' Asylum, RE: Gershman A-G crossovers - pic (0.00)
Posted by hahax@verizon.net on 2021-02-24, 20:41:18 (72.88.210.112)
Not naming names but a friend of mine designed a crossover for a well known speaker manufacturer and he complained it didn't work. When he sent a picture of what he built from the plans the crossover .......

24: Tweakers' Asylum, RE: Speaker materials (0.00)
Posted by hahax@verizon.net on 2021-02-24, 20:39:17 (72.88.210.112)
MDF is the classic speaker cabinet material. I bet over 90% of speakers use it. There are better construction materials and methods but they are more complex and cost more. For a simple, small speaker .......

25: Amp/Preamp Asylum, RE: Schiit to drive Magnepan (0.00)
Posted by hahax@verizon.net on 2021-02-24, 20:28:48 (72.88.210.112)
doubling of power 8 to 4 ohms is just a good rule of thumb. Maggies are current hungry and the doubling tells you the amps has a power supply that is less likely to run out of current under heavy load .......

26: Tweakers' Asylum, RE: Gershman A-G crossovers - pic (0.00)
Posted by hahax@verizon.net on 2021-02-22, 20:37:53 (72.88.210.112)
Moving crossovers outside the speaker reduces microphonics in the crossover which can be significant. It will be interesting especially moving the crossover from being near to the woofer. The magnetic .......

27: High Efficiency Speaker Asylum, RE: Edgar Horns (0.00)
Posted by hahax@verizon.net on 2021-02-19, 20:44:39 (72.88.210.112)
Hard to guess the loading but you seem correct. It doesn't look physically like a bass horn. That seems confirmed by the relatively 90dB listed on the back panel which isn't high for that big a box ev .......

28: Tube DIY Asylum, RE: Why is so important a low PS output impedance? (0.00)
Posted by hahax@verizon.net on 2021-02-14, 20:40:28 (72.88.210.112)
High output impedance affects the frequency response of a system. Where there are peaks in speaker impedance with a high amp impedance(such as humps at crossover points and two humps in the bass for b .......

29: Speaker Asylum, RE: Inside ancient ProAc (0.00)
Posted by hahax@verizon.net on 2021-02-13, 19:36:19 (72.88.210.112)
Very good drivers for the time. All three of them have improved relatives still being made today directly related to yours and it's almost 4 decades later. The ATC dome midrange is especially impressi .......

30: Planar Speaker Asylum, RE: It works ... (0.00)
Posted by hahax@verizon.net on 2021-02-07, 21:15:05 (72.88.210.112)
It sounds like the preamp high pass takes enough energy out of the Maggies to significantly reduce their excursion and improving the Maggie dynamics. .......

31: Speaker Asylum, RE: Replacing a midrange driver - different impedance (0.00)
Posted by hahax@verizon.net on 2021-02-04, 18:26:59 (72.88.210.112)
It's not just impedance. It's impedance as frequency changes. It's the response of the driver itself. It's any changes in the dispersion. It's the new relationship to the driver characteristics of the .......

32: General Asylum, RE: New Eva Cassidy Documentary & (0.00)
Posted by hahax@verizon.net on 2021-02-02, 22:32:40 (72.88.210.112)
It was very late. I began it expecting to stop it and finish watching the next day. I didn't stop. You can't put Eva Cassidy down. You can't put genius down. .......

33: Vinyl Asylum, RE: old timey turntable isolation (0.00)
Posted by hahax@verizon.net on 2021-01-30, 19:49:00 (72.88.210.112)
The old 'there is nothing new under the sun' strikes again. .......

34: Amp/Preamp Asylum, RE: Subwoofers - It's just bass, right ? (0.00)
Posted by hahax@verizon.net on 2021-01-29, 20:28:36 (72.88.210.112)
I was only discussing low crossovers, say under 70 Hz. And I wanted to make the point that at the low crossovers bass is totally undirectional and you don't need to worry about stereo then. This becom .......

35: Amp/Preamp Asylum, RE: Subwoofers - It's just bass, right ? (0.00)
Posted by hahax@verizon.net on 2021-01-28, 20:38:26 (72.88.210.112)
Very low bass is totally non directional. If the crossover is low enough you can stand next to a sub and think it's not working. The bass will sound like it's coming from the main speakers, the direct .......

36: Speaker Asylum, RE: Proac D30RS vs Quad ESL (0.00)
Posted by hahax@verizon.net on 2021-01-27, 20:35:41 (72.88.210.112)
Even if it's true(which I doubt) a 6.5" can't play loud enough at 20 Hz, with or ear's roll off at low frequencies, to be heard. It would take a woofer throw that would tear the driver apart. ::: TOPI .......

37: High Efficiency Speaker Asylum, RE: As there is no 'sub-woofer' forum, might as well start here..... (0.00)
Posted by hahax@verizon.net on 2021-01-24, 19:24:47 (72.88.210.112)
Harmonics are why many listeners claim they can locate subs. They can't. If a sub crosses over low enough and is separated from the main speakers you can stand right next to the sub while it's blastin .......

38: Vintage Asylum, RE: Stacked advents woofer to woofer (0.00)
Posted by hahax@verizon.net on 2021-01-23, 20:32:44 (72.88.210.112)
B&W 16s? .......

39: Vintage Asylum, RE: Stacked advents woofer to woofer (0.00)
Posted by hahax@verizon.net on 2021-01-22, 20:39:09 (72.88.210.112)
I never liked double Advents(I only tried vertical tweeter to tweeter). I found single Advents to be cleaner, more defined and more focused. Doubles always seemed to have an amorphous image and were m .......

40: Amp/Preamp Asylum, RE: More real is a state of mind (0.00)
Posted by hahax@verizon.net on 2021-01-22, 20:34:35 (72.88.210.112)
Agreed which makes it difficult sometimes to discuss real. Reproduction can be divided into various factors like definition, flat response, etc. and while we all are affected by all of them I believe .......

41: Amp/Preamp Asylum, RE: What about tube/solid state convergence? (0.00)
Posted by hahax@verizon.net on 2021-01-21, 20:49:19 (72.88.210.112)
I have no doubt designers of both tubes and solid state are learning more each year and if the goal is accurate reproduction then the sound of SS and tubes should converge as they become more accurate .......

42: Speaker Asylum, RE: " carpenters like me are why they invented wood filler and 60-grit sandpaper." (0.00)
Posted by hahax@verizon.net on 2021-01-20, 20:37:17 (72.88.210.112)
Agreed about the web site. It was a pain getting around it. I never had a problem with the old format. .......

43: Amp/Preamp Asylum, RE: New vs vintage ARC tube amps (0.00)
Posted by hahax@verizon.net on 2021-01-20, 20:32:36 (72.88.210.112)
ARC circuitry has changed a lot over the years. The early amps all had similar circuitry and it was quite complex with multiple push/pull stages and cathode followers meaning lots of tubes. The latest .......

44: Speaker Asylum, RE: A little expensive for MDF cabinets.... (0.00)
Posted by hahax@verizon.net on 2021-01-19, 20:39:30 (72.88.210.112)
Almost all speaker cabinets are MDF. The wood finish is very thin veneer(you can see light through it before application). If it was solid wood it would probably cost at least a few hundred dollars mo .......

45: Speaker Asylum, RE: Seeking DIY Subwoofer Guidance (0.00)
Posted by hahax@verizon.net on 2021-01-18, 20:45:05 (72.88.210.112)
I'm not an expert but I've read a bit and your volume limitations don't appear large enough to be a subwoofer, probably okay as a woofer. I'll add an anecdote. I once met Percy Wilson, a British exper .......

46: General Asylum, RE: Importance of Voltage Regulation (0.00)
Posted by hahax@verizon.net on 2021-01-18, 20:37:44 (72.88.210.112)
Voltage is sometimes regulated on low level electronic stages albeit only on more costly gear since regulation costs money. Voltage is almost never regulated on the output stages of amplifiers. ::: TO .......

47: Critic's Corner, RE: Meet the Writers/ Absolute Sound (0.00)
Posted by hahax@verizon.net on 2021-01-15, 20:26:51 (72.88.210.112)
They are sub woofers in the corners. They allow better placement of the main speakers and if the crossover has a high pass as I think it does it lessens the load on the main speakers which will improv .......

48: Tweakers' Asylum, RE: First X-over build help please (0.00)
Posted by hahax@verizon.net on 2021-01-12, 20:34:49 (72.88.210.112)
Neatness matters especially good physical mounting. Crossovers are inside vibration chambers and micrphonics are really significant. .......

49: Vinyl Asylum, RE: London Decca Cartridge & Notts 12" Anna Arm (0.00)
Posted by hahax@verizon.net on 2021-01-12, 20:32:37 (72.88.210.112)
I'll be interested in any replies. I have a Decca 4RC that I'm thinking of trying in a Fidelity Research FR-64FX arm on a slightly modded HW-19 table. .......

50: General Asylum, RE: Art Dudley Listener Magazine(audio mag) (0.00)
Posted by hahax@verizon.net on 2021-01-09, 20:46:06 (72.88.210.112)
Go To: https://worldaudiohistory.com/archive-all-audio/audio-magazine.htm I think you will be pleasantly pleased .......

51: Speaker Asylum, RE: Precedent Audio Mod 3(2) Speakers (0.00)
Posted by hahax@verizon.net on 2021-01-08, 20:50:50 (72.88.210.112)
about 100, I'm curious if any still exist 40 years later .......

52: Critic's Corner, RE: Thanks for reading... (0.00)
Posted by hahax@verizon.net on 2021-01-08, 20:47:08 (72.88.210.112)
There was also another reason for the BBC damped thin wall construction. They knew they couldn't get rid of all box coloration in a practical box so they chose where the box would be the least colored .......

53: Speaker Asylum, RE: Precedent Audio Mod 3(2) Speakers (0.00)
Posted by hahax@verizon.net on 2021-01-07, 20:47:35 (72.88.210.112)
It was Zeligman and it was 1979. .......

54: Speaker Asylum, Precedent Audio Mod 3(2) Speakers (0.00)
Posted by hahax@verizon.net on 2021-01-06, 20:07:20 (72.88.210.112)
Mostly curious. I was a big transmission line fan. About 4 decades ago there was a speaker, the Precedent Audio Mod 3, which was a modular design you could buy as either a 2 way or 3 way, both mid and .......

55: High Efficiency Speaker Asylum, Precedent Audio Mod 3 Speakers (0.00)
Posted by hahax@verizon.net on 2021-01-05, 21:00:27 (72.88.210.112)
Mostly curious. I was a big transmission line fan. About 4 decades ago there was a speaker, the Precedent Audio Mod 3, which was a modular design you could buy as either a 2 way or 3 way, both mid and .......

56: Speaker Asylum, RE: Yamaha NS1000 crossover upgrade? (0.00)
Posted by hahax@verizon.net on 2021-01-05, 20:55:22 (72.88.210.112)
Just a guess but perhaps it's the bass. It has a significantly leaner character than most speakers. I believe the bass resonance is at 40 Hz but with a Q of 0.5 which is maximum damping. This means wi .......

57: Speaker Asylum, RE: SB29RDAC tweeter (0.00)
Posted by hahax@verizon.net on 2021-01-03, 20:33:48 (72.88.210.112)
simple answer, especially since sounds better is a personal statement. It probably sounds good but a properly done 4th order Linkwitz/Reilly(acoustically LR 4th order, not electrically) sounds good to .......

58: Speaker Asylum, RE: Here's a photo (0.00)
Posted by hahax@verizon.net on 2021-01-01, 20:44:24 (72.88.210.112)
They appear omni because of the round shape and down firing woofer/mid. But the upper mids and treble are handled by front firing conventional drivers and will probably have fair off axis response but .......

59: General Asylum, RE: Audiophiles (0.00)
Posted by hahax@verizon.net on 2020-12-29, 20:47:14 (72.88.210.112)
That's your definition, not mine. .......

60: Critic's Corner, RE: Doug, it is Judge vs Lawyer (0.00)
Posted by hahax@verizon.net on 2020-12-29, 20:46:06 (72.88.210.112)
Information involves interchange which leads to relationships. Judges and lawyers know each other well. You have to hope for good judges. There are some. It's up to the audiophile to root them out. He .......

61: Speaker Asylum, RE: I have a sub... (0.00)
Posted by hahax@verizon.net on 2020-12-28, 20:46:05 (72.88.210.112)
If changing ear position changes bass it has nothing to do with the amp. It is a speaker/room interaction problem and probably means repositioning your speakers/seat/room set up. .......

62: Speaker Asylum, RE: SB29RDAC tweeter (0.00)
Posted by hahax@verizon.net on 2020-12-28, 20:42:23 (72.88.210.112)
4th order will work IF it's done correctly, preferably a Linkwitz/ Reilly 4th order ACOUSTIC crossover meaning the net result of the driver characteristics and the crossover itself produce a Linkwitz/ .......

63: Critic's Corner, RE: Marketing (0.00)
Posted by hahax@verizon.net on 2020-12-26, 19:46:45 (72.88.210.112)
One of the best ways to understand the soul and ethos of a product is to speak with the people who design it, make it and sell it. It's the job of a good reviewer to sift out what's real and what's no .......

64: Speaker Asylum, RE: Tube volume is not what matters (0.00)
Posted by hahax@verizon.net on 2020-12-19, 20:41:58 (72.88.210.112)
I second the motion. At one time I thought it was the mass of the air in the port but every time I look you are correct so it's not that simple. .......

65: Vinyl Asylum, RE: No Antiskate (0.00)
Posted by hahax@verizon.net on 2020-12-18, 20:37:23 (72.88.210.112)
If you set tracking force with the table flat, it won't be accurate tilted, how much depends on the amount of tilt, if it's significant. There are knowledgeable people who don't think antiskate really .......

66: General Asylum, RE: Shure V15 Type IV Phono Cartridge.......... (0.00)
Posted by hahax@verizon.net on 2020-12-13, 20:45:24 (72.88.210.112)
You need to measure the correct things and frequency response is a minor one. A friend of mine chose a Technics pickup, not knowing what it was from a square wave, a separation curve(and a frequency c .......

67: Speaker Asylum, RE: I don't know where you get your albums... (0.00)
Posted by hahax@verizon.net on 2020-12-12, 19:31:19 (72.88.210.112)
Decca records was bragging about 30 db dynamic range way back in the 60s and things are way better now. Recordings with wide dynamic range are rare but they exist. I have a Carmina Burrana live record .......

68: Planar Speaker Asylum, RE: is the LRS the most talked about speaker of all time ? (0.00)
Posted by hahax@verizon.net on 2020-12-12, 19:25:34 (72.88.210.112)
My guess is either the Quad 57 or the LS3/5a simply because they've been hot subjects for so long 7 and 8 decades respectively. And the LS3/5a may be in first because it becomes a hot topic every time .......

69: Speaker Asylum, RE: Shouldn't 50 watts be enough for any speaker? (0.00)
Posted by hahax@verizon.net on 2020-12-11, 20:43:59 (72.88.210.112)
The problem isn't average loudness. A few watts will drive an 85dB speaker loud on average. It's the sudden short musical peaks for one thing since some of them can be 30 dB(depends on your kind of mu .......

70: Speaker Asylum, RE: JBL L100 Classic are nice but (0.00)
Posted by hahax@verizon.net on 2020-12-09, 20:05:12 (72.88.210.112)
Sorry, I thought my reply would only lead to a possible internal discussion between just two of us. His comments aroused too much nostalgia in me. .......

71: Speaker Asylum, RE: JBL L100 Classic (0.00)
Posted by hahax@verizon.net on 2020-12-09, 20:03:40 (72.88.210.112)
There's really no way to know if you will like a set of speakers unless you hear them even if they are described superbly by a great writer. You can't be absolutely sure what he means. The only possib .......

72: Speaker Asylum, RE: JBL L100 Classic are nice but (0.00)
Posted by hahax@verizon.net on 2020-12-08, 20:45:05 (72.88.210.112)
In 1975 I worked in a store called Wall To Wall Sound in Delaware. We sold the L100s and the vinyl A25s as a come on(I got no commission for selling them). Sonically you and I are on the same stage. T .......

73: Speaker Asylum, RE: Double Ohm F's (0.00)
Posted by hahax@verizon.net on 2020-12-07, 20:45:57 (72.88.210.112)
Harry Weisfeld has doubles and loves them. .......

74: High Efficiency Speaker Asylum, RE: mids (0.00)
Posted by hahax@verizon.net on 2020-12-07, 20:44:57 (72.88.210.112)
I assume you are using multiples. The SEAS paper nextel 4 1/2" W12CY003 is a beautiful driver(check the SEAS web site for curves). But it is costly and the Troels Gravesen modified version is even nic .......

75: Critic's Corner, RE: My new writing gig (0.00)
Posted by hahax@verizon.net on 2020-12-07, 20:36:08 (72.88.210.112)
Great news John! I know you will do a superb job. The proof is already in the pudding. .......

76: Speaker Asylum, RE: Opinions Sought On MLTL (0.00)
Posted by hahax@verizon.net on 2020-12-06, 19:09:22 (72.88.210.112)
If the design is correct for 1 driver just seal the space for the 2nd driver. Leaving it there fouls up the original design. It will act as a second port which wasn't part of the design otherwise and .......

77: Speaker Asylum, RE: Do you have data to backup your claims? (0.00)
Posted by hahax@verizon.net on 2020-12-03, 20:37:14 (72.88.210.112)
no answer to above, of course. puppies win all the time. but what was the question? .......

78: Vinyl Asylum, RE: Bunch of Old Guys (0.00)
Posted by hahax@verizon.net on 2020-12-03, 20:28:33 (72.88.210.112)
Probably won't die but it could shrink drastically and become a super specialist hobby, maybe going back to its roots in the 50s with lots of home construction. Wonder if us old guys will see what rea .......

79: Speaker Asylum, RE: Do you have data to backup your claims? (0.00)
Posted by hahax@verizon.net on 2020-12-02, 20:49:36 (72.88.210.112)
I only referred to the 901s because that's the only one that was designed according to his research. All his other designs only bounce the tweeter portion of the frequencies they reproduce and try to .......

80: Speaker Asylum, RE: You've got answers for everything in your narrow little world (0.00)
Posted by hahax@verizon.net on 2020-12-01, 20:48:03 (72.88.210.112)
And your point is? Say something specific that may contradict me. .......

81: Speaker Asylum, RE: Do you have data to backup your claims? (0.00)
Posted by hahax@verizon.net on 2020-12-01, 20:46:51 (72.88.210.112)
Which data? The 89% is Bose data and I think done at MIT and basically correct. That different frequencies are absorbed differently shouldn't be a question. I agree about set up. It's true on all spea .......

82: Amp/Preamp Asylum, RE: How much of an amps wattage is used? (0.00)
Posted by hahax@verizon.net on 2020-11-30, 19:20:08 (72.88.210.112)
Lets pick an 85db sensitivity speaker, a bit less than average. At 1 watt into it at i meter it is playing an average of 85dB, very loud. Even at say 12 feet you are only averaging a few watts. So the .......

83: Tweakers' Asylum, RE: Damping chassis internally? (0.00)
Posted by hahax@verizon.net on 2020-11-27, 20:28:51 (72.88.210.112)
I used to use moretite as a damping material inside electronics and speakers like the answer below. It works well on speaker chassis also. It's simple and cheap. .......

84: Speaker Asylum, RE: Anyone recall how Amar Bose and his M.I.T. team calculated 89% of concert hall sound is reflected? (0.00)
Posted by hahax@verizon.net on 2020-11-26, 20:28:31 (72.88.210.112)
Problem is the percentage depends on the frequency and the environment. And besides a great live recording already has good hall sound so Bose distorted the halls sound by reflecting it in the listeni .......

85: High Efficiency Speaker Asylum, RE: Electrostats are slow (0.00)
Posted by hahax@verizon.net on 2020-11-25, 20:35:07 (72.88.210.112)
sounds like a big motor. Size usually correlates but what matters is the lines of magnetic flux in the gap and ultimately you need that to really know. .......

86: High Efficiency Speaker Asylum, RE: Electrostats are slow (0.00)
Posted by hahax@verizon.net on 2020-11-24, 21:43:40 (72.88.210.112)
Without numbers I'm not sure they are slow but it's not obvious that electrostatics are so fast like their lovers claim is obvious;it's not. Like I said I'd love to see real math. .......

87: Speaker Asylum, RE: "just like an instrument does" (0.00)
Posted by hahax@verizon.net on 2020-11-24, 20:39:03 (72.88.210.112)
You must still remember to not confuse the shape of an instrument with dispersion. You must include the frequency it is producing. The longer the wave length the wider the dispersion no matter the pro .......

88: High Efficiency Speaker Asylum, RE: Electrostats are slow (0.00)
Posted by hahax@verizon.net on 2020-11-24, 20:34:46 (72.88.210.112)
Acceleration, the ability to follow wave forms is a function of power to weight ratio. Electrostatics are very light per area but their motors are weak relative to dynamic drivers. This is inevitable .......

89: Vinyl Asylum, Web Site (0.00)
Posted by hahax@verizon.net on 2020-11-21, 22:22:37 (72.88.210.112)
Can you print the web site address? I want to be sure I get the correct site. .......

90: High Efficiency Speaker Asylum, RE: Bob Carver tweaked a SS amp to sound exacly like a CJ years ago... (0.00)
Posted by hahax@verizon.net on 2020-11-21, 19:13:23 (72.88.210.112)
I have spoken with Gordon Holt about the process and he assured me Carver accomplished what he claimed. .......

91: Amp/Preamp Asylum, RE: SETs (0.00)
Posted by hahax@verizon.net on 2020-11-19, 20:49:08 (72.88.210.112)
So does class A push/pull solve the problem with other compromises of course, mainly heat and lower output. .......

92: Amp/Preamp Asylum, RE: What would be the logic behind a phase inverting preamp? (0.00)
Posted by hahax@verizon.net on 2020-11-19, 20:47:28 (72.88.210.112)
And some preamps have a switch to give the option of flipping phase 180 degrees for phase problems in software, a good solution for two situations. .......

93: Speaker Asylum, RE: ones? (0.00)
Posted by hahax@verizon.net on 2020-11-18, 20:36:46 (72.88.210.112)
You're correct about the TDLs but all IMFs with oval drivers used B139s. .......

94: Speaker Asylum, RE: the ones? (0.00)
Posted by hahax@verizon.net on 2020-11-17, 20:58:13 (72.88.210.112)
same driver, different bass loading, a good transmission line can go lower. A properly done variovent/line tunnel should do all but the last octave(most of classical music except organs) with exceptio .......

95: Speaker Asylum, RE: the ones? (0.00)
Posted by hahax@verizon.net on 2020-11-16, 20:50:40 (72.88.210.112)
It's interesting that the Fried R and Dynaco A25 loadings(which came from the Scandinavian variovent research; indeed the A25 was made in Scandinavia) are variations of the same concept. This is espec .......

96: Speaker Asylum, RE: the ones? (0.00)
Posted by hahax@verizon.net on 2020-11-13, 20:36:07 (72.88.210.112)
A line tunnel is just a big, deep stuffed port. Bud sometimes varied he stuffing depth depending on customer feedback. Low stuffing allows some bass reinforcement from the port. Heavy stuffing has no .......

97: Speaker Asylum, RE: Interesting woofer (0.00)
Posted by hahax@verizon.net on 2020-11-09, 20:29:05 (72.88.210.112)
Pure trivia but 139 stood for the size, 13" by 9". At first there was also a larger version, the B1814, yes 18" by 14". The old cartridge company built a 2 way speaker that used the B1814 and a large .......

98: Speaker Asylum, RE: OMG! (0.00)
Posted by hahax@verizon.net on 2020-11-08, 21:22:12 (72.88.210.112)
Another good mod was to take the two huge air coil coils in the crossover box and get them as far apart as possible. They interacted causing inter channel interference. I once got in trouble when Bud .......

99: Speaker Asylum, RE: Are these the ones? (0.00)
Posted by hahax@verizon.net on 2020-11-08, 21:18:57 (72.88.210.112)
Your speakers could be Model R, the 1st speaker made by Fried products after the split with IMF, or the updated Model R II. The boxes and drivers(KEF B139 woofer, KEF B110 mid, KEF T27 tweeter were th .......

100: Amp/Preamp Asylum, RE: Are amps clipping or doubling ? (0.00)
Posted by hahax@verizon.net on 2020-11-03, 20:23:51 (72.88.210.112)
These are two separate statements essentially unrelated. A well designed solid state amp with a big power supply doubles output as load impedance halves. Many amps don't double down to 4 ohms unfortun .......

101: Amp/Preamp Asylum, RE: Can someone explain the function of the tape/monitor (0.00)
Posted by hahax@verizon.net on 2020-10-31, 20:41:23 (72.88.210.112)
I assumed that but I shouldn't have. I should have stated it explicitly as you did. Thanks. .......

102: Amp/Preamp Asylum, RE: Can someone explain the function of the tape/monitor (0.00)
Posted by hahax@verizon.net on 2020-10-29, 20:32:08 (72.88.210.112)
If you are recording and you have tape output into the monitor input you can either listen to the source or to the tape just after it's been recorded. In the normal setting you are listening to the mu .......

103: Amp/Preamp Asylum, RE: The latest in wretched excess from McIntosh (0.00)
Posted by hahax@verizon.net on 2020-10-11, 20:13:48 (72.88.210.112)
You're right but so what. If it doesn't sell then the public has spoken and vice versa. You don't have to buy one. Why are you so angry? There are many way more egregious examples in high end audio. : .......

104: Speaker Asylum, RE: This is interesting and I commend your endeavor (0.00)
Posted by hahax@verizon.net on 2020-10-08, 18:41:41 (72.88.210.112)
You need to take into account the BBC was very concerned with the voice range and were willing to compromise the bass range a bit. So the 1st resonance of a BBC design is low and then the damping pads .......

105: Amp/Preamp Asylum, RE: Matching amps to speaker efficiency (0.00)
Posted by hahax@verizon.net on 2020-10-07, 20:34:49 (72.88.210.112)
Almost no drivers are really flat. More complex crossovers are never pure 2nd or 4th order but also include equalization to flatten the response. This can be done if there are enough parts to do both .......

106: Tweakers' Asylum, RE: Mortite (0.00)
Posted by hahax@verizon.net on 2020-10-05, 20:27:10 (72.88.210.112)
The seal around a driver in a ported box is just as important as for a sealed box. Ported box designs take into affect something called leakage and it affects the box design. .......

107: Tubes Asylum, RE: Best sounding power pentode/tetrode in triode for SE? (0.00)
Posted by hahax@verizon.net on 2020-10-04, 20:19:37 (72.88.210.112)
It works. A couple of decades ago Melos built SE monoblocks with I think 2 output tubes and got 70 watts. But the way to make a triode with these tubes is to drive the screen which takes current. And .......

108: Speaker Asylum, RE: Best $1,000 Speaker? (0.00)
Posted by hahax@verizon.net on 2020-10-03, 19:16:21 (72.88.210.112)
Sorry, mea culpa, I too quickly assumed it was just an ad. .......

109: Speaker Asylum, RE: Best $1,000 Speaker? (0.00)
Posted by hahax@verizon.net on 2020-10-02, 20:28:50 (72.88.210.112)
Why? For you obviously. For others you need to at least give some reasons for us to consider and think about. .......

110: General Asylum, RE: Do you buy gear based on music genre (0.00)
Posted by hahax@verizon.net on 2020-09-27, 19:06:06 (72.88.210.112)
That's what tone controls are for, to color the sound perfect. Oh, that's right there aren't tone controls anymore(actually very few amps have them). .......

111: Vinyl Asylum, RE: To further complicate things... (0.00)
Posted by hahax@verizon.net on 2020-09-26, 19:47:07 (72.88.210.112)
There is another way to load a magnetic pickup. I forget the name of the product(even though I reviewed it for Stereophile) but was reminded of it yesterday. An active box gives it a megaohm load whic .......

112: General Asylum, RE: I'm not surprised... (0.00)
Posted by hahax@verizon.net on 2020-09-19, 19:34:47 (72.88.210.112)
I hung at Personalized Audio and then at Melos for about 20 years multiple times per week. I have to think we know each other although I have to admit to being lousy recalling names. My name is Allen. .......

113: General Asylum, RE: Do gold compact discs actually sound better (0.00)
Posted by hahax@verizon.net on 2020-09-17, 20:43:49 (72.88.210.112)
In the early 2000s George Bischoff(Melos, Pipe Dreams, etc.) produced specially treated gold CDRs that sounded better. It took me seconds to hear him make a copy of Gladiator and compare it to the ori .......

114: Speaker Asylum, RE: Why do people hate cheaper options? (0.00)
Posted by hahax@verizon.net on 2020-09-15, 20:41:25 (72.88.210.112)
ALL cabinets ring. Only some of the crazy expensive ones have Minimal ringing(look at the Stereophile tests). Just put your hand on most cabinets and you can feel the vibration. That's uncontrolled so .......

115: Speaker Asylum, RE: Single or array - it still isn't crossing over at that point (0.00)
Posted by hahax@verizon.net on 2020-08-19, 21:07:48 (72.88.210.112)
The Orion driver is not a tweeter. But it is a single Heil driver that is crossed as a single driver at 380 Hz and in a line array at 120 Hz. I have heard the system. And it does play loud and extreme .......

116: Speaker Asylum, RE: A tweeter/mid going down to 650hz ???? (0.00)
Posted by hahax@verizon.net on 2020-08-17, 21:22:14 (72.88.210.112)
Not ESS but Arion Audio makes an almost full range line source of multiple Heils that cross at 120Hz to open back dynamic woofers. They also make a smaller speaker with a single Heil that crosses at 3 .......

117: Digital Drive, RE: Play cd layer of Hybrid SACDs with Oppo 95. (0.00)
Posted by hahax@verizon.net on 2020-08-17, 21:09:36 (72.88.210.112)
I had a similar problem on a DVD player I used as a CD drive. The slightly messy solution was to make a CDR copy of the CD layer on a computer. .......

118: Tubes Asylum, RE: Dyna ST70 with Harbeth P3 (0.00)
Posted by hahax@verizon.net on 2020-08-16, 20:51:00 (72.88.210.112)
If you listen to music with wide dynamic range inefficient speakers and a Dyna ST70 may not be a good combo(and decades ago I used a Stereo 70 and AR2a speakers before big amps). It may have been rate .......

119: Speaker Asylum, RE: The old adage, "Big speakers, big problems." nt (0.00)
Posted by hahax@verizon.net on 2020-08-07, 20:33:41 (72.88.210.112)
And a friend of mine's mantra was a GOOD big one beats a good little one every time. .......

120: Tube DIY Asylum, RE: Tube Life in Triode or Tetrode (0.00)
Posted by hahax@verizon.net on 2020-08-06, 20:00:38 (72.88.210.112)
Tube life is strongly affected by the amp design. It depends on how good the designer is. David Berning's amps are designed for 10,000 hour tube life but actually will do much better. The audionics BA .......

121: Amp/Preamp Asylum, RE: By bridging the amp, you cut the damping factor in half (0.00)
Posted by hahax@verizon.net on 2020-07-22, 20:44:34 (72.88.210.112)
The A23 damping factor at 20 Hz(where it matters most not at 1 kHz like some specs use but don't tell you) is specified at over 800 probably into 8 ohms. Bridging will reduce it to over 400 which is s .......

122: Tube DIY Asylum, RE: Transistor Behavior Mod? (0.00)
Posted by hahax@verizon.net on 2020-07-20, 20:39:38 (72.88.210.112)
thanks and I'm supposed to recall this? .......

123: Tube DIY Asylum, RE: Transistor Behavior Mod? (0.00)
Posted by hahax@verizon.net on 2020-07-19, 20:37:54 (72.88.210.112)
? .......

124: Amp/Preamp Asylum, RE: Can pentode mode be in class A? (0.00)
Posted by hahax@verizon.net on 2020-07-19, 20:36:54 (72.88.210.112)
in both single ended or push pull amplification. In single ended amplification it can only be class A. Single ended circuit topology can only be class A. .......

125: General Asylum, RE: Caption This Picture...... (0.00)
Posted by hahax@verizon.net on 2020-07-12, 19:24:55 (72.88.210.112)
Effen UGLY! Don't care how it performs .......

126: Speaker Asylum, RE: doubles (0.00)
Posted by hahax@verizon.net on 2020-07-07, 20:37:01 (72.88.210.112)
I think we meant the same thing with slightly different words. .......

127: Speaker Asylum, RE: doubles (0.00)
Posted by hahax@verizon.net on 2020-07-06, 19:29:20 (72.88.210.112)
and phase cancellation leads to sound nulls which produces phase cancellation and you're correct if it's out of phase at your ear it will occur too. Comb filtering is caused by phase cancellation. And .......

128: Speaker Asylum, RE: doubles (0.00)
Posted by hahax@verizon.net on 2020-07-05, 20:41:53 (72.88.210.112)
comb filtering occurs when two drivers covering the same frequency are horizontally apart by one half wave length so they are 180 degress out of phase and cancel. The worst case ever was the Bose 901 .......

129: Speaker Asylum, RE: Stacked Advents (0.00)
Posted by hahax@verizon.net on 2020-07-05, 08:09:06 (72.88.210.112)
Very smart idea but there still would be upper mid range and tweeter comb filtering which I suspect some would like as more musical. .......

130: Speaker Asylum, RE: reconed (not refoamed)? (0.00)
Posted by hahax@verizon.net on 2020-07-04, 19:35:15 (72.88.210.112)
tried them stacked as per Harry Pearson vs IMF Studios for a friend looking at them. Much preferred the IMFs. The tried single Advents. They imaged better, were better defined, more transparent and be .......

131: Cable Asylum, RE: Is 16 gauge speaker wite ok to use with my Merlin TSMBME (0.00)
Posted by hahax@verizon.net on 2020-07-02, 20:28:41 (72.88.210.112)
He's using a tube amp which means low damping factor. That means every peak and dip in the impedance curve will be reflected in the speakers response significantly, probably two peaks above and below .......

132: Speaker Asylum, RE: Heil AMT speakers (0.00)
Posted by hahax@verizon.net on 2020-06-29, 19:43:45 (72.88.210.112)
Heil speakers came out in the mid 70s, mainly only as tweeters. This is almost still true with one exception I know of. Check Arionaudio.com. They make almost full range AMT speakers crossed over to d .......

133: Vintage Asylum, RE: Spendor BC1 for second system? (0.00)
Posted by hahax@verizon.net on 2020-06-26, 20:37:31 (72.88.210.112)
It sounds like a good combo since the amp doesn't use autoformers and has a high damping factor. The Spendor BC1 was a great speaker in its day with an excellent mid range. Its biggest weakness was it .......

134: Critic's Corner, RE: Apparently "little interest in DIY among subscribers" (0.00)
Posted by hahax@verizon.net on 2020-06-22, 20:37:22 (72.88.210.112)
Interestingly it was Stereophile that led to the creation of Audio Amateur(and Glass Audio and Speaker builder). Way back before Stereophile went to the small format Ed Dell wrote an article published .......

135: Radio Road, RE: Sherwood S3000-V updates? (0.00)
Posted by hahax@verizon.net on 2020-06-20, 19:51:23 (72.88.210.112)
I recall reviews of this tuner. It was one of the most highly regarded tuners of its era. .......

136: Cable Asylum, RE: Is 16 gauge speaker wite ok to use with my Merlin TSMBME (0.00)
Posted by hahax@verizon.net on 2020-06-20, 19:48:21 (72.88.210.112)
This is tough. Heavier gauge will flatten the frequency response, how much depends on how low the gauge. The thicker gauge minimizes the interaction between the speakers bumpy impedance curve and the .......

137: Cable Asylum, RE: Is 16 gauge speaker wite ok to use with my Merlin TSMBME (0.00)
Posted by hahax@verizon.net on 2020-06-19, 20:38:27 (72.88.210.112)
Tube or transistor? .......

138: Radio Road, RE: FM table radio (0.00)
Posted by hahax@verizon.net on 2020-06-11, 22:04:51 (72.88.210.112)
I had a really nice old Aiwa radio for over 3 decades that just gave up the ghost. Shopping on a computer only sucks so I just bought the base Tivoli because of generally good reviews and I really lik .......

139: Speaker Asylum, RE: I believe the HEAL tweeter was derived from the Linaeum tweeter (0.00)
Posted by hahax@verizon.net on 2020-06-11, 12:15:06 (72.88.210.112)
Totally correct. My reply was only that it looked just like the Linaeum fro decades ago, nothing new under the sun. .......

140: Speaker Asylum, RE: I believe the HEAL tweeter was derived from the Linaeum tweeter (0.00)
Posted by hahax@verizon.net on 2020-06-10, 20:59:34 (72.88.210.112)
I agree. When I read the speaker review I immediately thought of the Linaeum, just couldn't recall the name. Thanks. .......

141: Vinyl Asylum, RE: Design of original AR-XA evaluated (0.00)
Posted by hahax@verizon.net on 2020-06-10, 20:55:50 (72.88.210.112)
I many ways the AR turntable was the Dynaco Stereo 70 of turntables. It was a cost effective device that got thousands into good audio and then influenced tons of other designs. The arm was probably n .......

142: General Asylum, RE: Fear Of Frying (0.00)
Posted by hahax@verizon.net on 2020-06-09, 20:29:12 (72.88.210.112)
Unfortunately tubes wearing out from hours of use is a function of design. It isn't necessary. A few companies have been known for short tube life spans. Most are medium. But there are designs that la .......

143: General Asylum, RE: Who is your go to audio equipment reviewer on-line? (0.00)
Posted by hahax@verizon.net on 2020-06-07, 20:33:40 (72.88.210.112)
Roy Gregory. He has perspective both historically and functionally on equipment and can put gear in perspective. He also is very clear and descriptive sonically in ways I understand. My one minor comp .......

144: Critic's Corner, RE: Are Audiophiles Warming Up to Active Speakers? (0.00)
Posted by hahax@verizon.net on 2020-06-04, 19:48:07 (72.88.210.112)
Please don't let me confuse you with logic. I was just discussing technical and commercial factors and you take it personally? I wasn't dictating what any one should do. .......

145: Critic's Corner, RE: in principle, a fine idea -- (0.00)
Posted by hahax@verizon.net on 2020-06-03, 20:44:53 (72.88.210.112)
All the parts don't have to go in one box as most active systems do now. And DSP will not lend to all things sounding the same. DSP is variable and besides when will all audiophiles(or manufacturers) .......

146: Critic's Corner, RE: The problem for me with combination electronics (0.00)
Posted by hahax@verizon.net on 2020-06-03, 20:40:10 (72.88.210.112)
The amps and active crossover can be separate. Bryston does it now. .......

147: Critic's Corner, RE: Are Audiophiles Warming Up to Active Speakers? (0.00)
Posted by hahax@verizon.net on 2020-06-03, 20:38:38 (72.88.210.112)
You make some good arguments. Unfortunately most audiophiles want to choose their own amps and that is an obstacle to advancing active systems which I claim are ultimately superior. And given the cost .......

148: Critic's Corner, RE: I believe Bryston and Legacy offer active crossovers specific to some of their speaker models (0.00)
Posted by hahax@verizon.net on 2020-06-03, 20:35:04 (72.88.210.112)
All those amps is why I suggested some uber costly speaker systems use a custom crossover with amp choices to begin. Then have it get into lower strata if audiophiles learn to appreciate the real adva .......

149: Critic's Corner, RE: Are Audiophiles Warming Up to Active Speakers? (0.00)
Posted by hahax@verizon.net on 2020-06-02, 21:09:36 (72.88.210.112)
Eliminating passive crossover parts makes it much easier for an amp to drive a speaker. And there's no reason(and I wonder why it hasn't been done) an active crossover specific to a speaker(necessary .......

150: Speaker Asylum, RE: That new crossover is going to change your speakers (0.00)
Posted by hahax@verizon.net on 2020-06-01, 21:00:21 (72.88.210.112)
We basically agree, apples versus oranges. Like I said the Graveson crossover makes anew speaker. And I tried to show its pluses but you are losing what was probably what was liked in the original des .......

151: Vinyl Asylum, RE:TheKingston Trio were in a class all their own..... (0.00)
Posted by hahax@verizon.net on 2020-06-01, 20:56:13 (72.88.210.112)
They were really good and I've always been a folk fan but in a class of their own? Just off the top of me head PP&M were better and if I have to pick a best group(albeit without much harmony, mainly a .......

152: Critic's Corner, RE: Reverse Seems True Also (0.00)
Posted by hahax@verizon.net on 2020-06-01, 20:48:07 (72.88.210.112)
I recall not receiving an issue of an American magazine(can't recall which). So after about a month I phoned to get a copy. They already were out of paper issues. A few times I've bought news stand co .......

153: Speaker Asylum, RE: That new crossover is going to change your speakers (0.00)
Posted by hahax@verizon.net on 2020-05-31, 20:43:11 (72.88.210.112)
No question this is a new, different crossover. Just go to Troels Graveson's web site and you can see the affect on individual drivers and overall response. It will sound different. The overall respon .......

154: Amp/Preamp Asylum, RE: Remember when.... (0.00)
Posted by hahax@verizon.net on 2020-05-30, 19:51:05 (72.88.210.112)
Google audio magazine pdf. The top entry is every Audio magazine ever printed. .......

155: Critic's Corner, RE: Reverse Seems True Also (0.00)
Posted by hahax@verizon.net on 2020-05-29, 20:26:50 (72.88.210.112)
England to US seems to be a problem too. I haven't received issue of Hi Fi +, Hi Fi News and Hi Fi World(did receive notice that they can't get to their offices). .......

156: Speaker Asylum, RE: A wrap around (0.00)
Posted by hahax@verizon.net on 2020-05-27, 20:26:20 (72.88.210.112)
I think all the Q Acoustics use two layer walls(some 3) with a gel between them that doesn't dry completely, constrained layer damping. They were designed by the German Fink company. The idea of thin .......

157: Amp/Preamp Asylum, RE: Best Preamps Of The Last 25 Years. (0.00)
Posted by hahax@verizon.net on 2020-05-26, 20:20:45 (72.88.210.112)
Best I've used is the rare GeorgeMark Audio line stage/DAC. .......

158: Speaker Asylum, RE: A wrap around (0.00)
Posted by hahax@verizon.net on 2020-05-26, 17:53:07 (72.88.210.112)
There isn't a simple answer here. Notice the heroic cabinet designs on super costly speakers. And often these have minor and sometimes not so minor resonances. A wrap can help. But I would use a glue .......

159: Planar Speaker Asylum, RE: Bryston is always the answer. (0.00)
Posted by hahax@verizon.net on 2020-05-22, 20:44:57 (72.88.210.112)
Best warranty by far. It's a real 20 year. Knew an amp blown up by abuse that was overtly obvious and being ready to pay and they fixed it no charge anyway saying when we asked that Brystons don't blo .......

160: Amp/Preamp Asylum, RE: Loudness (0.00)
Posted by hahax@verizon.net on 2020-05-21, 20:34:21 (72.88.210.112)
Loudness controls in the past have been connected to the position of the volume control which unfortunately has nothing to do with the amount of compensation needed to 'flatten' frequency response. Wh .......

161: Tweakers' Asylum, RE: What is a good isolation footer? (0.00)
Posted by hahax@verizon.net on 2020-05-20, 20:19:55 (72.88.210.112)
I have footers under everything including separate power supplies. I heard better reproduction with each piece of equipment. .......

162: General Asylum, RE: Many of them are in Congress * (0.00)
Posted by hahax@verizon.net on 2020-05-18, 20:26:44 (72.88.210.112)
This is the wrong place to print your opinion, but damn it you are correct, way too correct. .......

163: General Asylum, RE: Mono switch is nice to have too... (0.00)
Posted by hahax@verizon.net on 2020-05-18, 20:24:51 (72.88.210.112)
And a balance control and mono switch allow easy balancing of a system in a difficult acoustic environment. For purists who are willing to pay more add a switch to take them out of circuit. ::: TOPIC: .......

164: Speaker Asylum, RE: Double Advents(& other speakers) Don't Work Correctly (0.00)
Posted by hahax@verizon.net on 2020-05-18, 10:52:43 (72.88.210.112)
Totally agree with you about Hi Fi News then. I began subscribing in the 70s based on Gordon Holt's recommendation. Credit cards didn't work then so I needed a bank transfer which cost more than the s .......

165: Speaker Asylum, RE: Tekton didn't get that memo (0.00)
Posted by hahax@verizon.net on 2020-05-18, 07:23:36 (72.88.210.112)
First, Tektons work differently. Only one tweeter goes all the way to top frequencies. Second I didn't like them at the DC show last year but I know I really needed much more time to really hear what' .......

166: Speaker Asylum, RE: Double Advents(& other speakers) Don't Work Correctly (0.00)
Posted by hahax@verizon.net on 2020-05-17, 23:28:07 (72.88.210.112)
Ken Kessler, perhaps the biggest LS3/5a advocate is a big fan of stacked LS3/5a's. I understand liking stacked 2 ways. They sound warmer and smoother and more musical with a fuller less differentiate .......

167: Speaker Asylum, Double Advents(& other speakers) Don't Work Correctly (0.00)
Posted by hahax@verizon.net on 2020-05-17, 20:32:54 (72.88.210.112)
Harry Pearson, who 1st wrote about double Advents(tweeters together with the top speaker upside down) was wrong. Double Advents don't work properly and are inferior to single Advents. I had a friend d .......

168: Speaker Asylum, RE: Stacking (0.00)
Posted by hahax@verizon.net on 2020-05-17, 20:09:58 (72.88.210.112)
Two things. Even order works. D'Appolito assumed ONE(not two) tweeters sandwiched between to larger drivers. Two tweeters doesn't work properly. .......

169: Vinyl Asylum, RE: Does the arm have adjustable VTA? (0.00)
Posted by hahax@verizon.net on 2020-05-14, 20:30:17 (72.88.210.112)
you are correct about the optional base but that was for making VTA changes easier. Your arm is held in the base by set screws. you loosen the screws to raise and lower the arm. That also changes the .......

170: Vinyl Asylum, RE: Cartridge Roll Call! (0.00)
Posted by hahax@verizon.net on 2020-05-13, 20:19:41 (72.88.210.112)
Technics EPC 100 MK4 MM headshell model, bandwidth to over 100kHz, in a modded VPI HW19 with Fidelity Research FR64fx arm .......

171: Tweakers' Asylum, RE: Cable elevators (lifters) (0.00)
Posted by hahax@verizon.net on 2020-05-07, 20:36:15 (72.88.210.112)
A friend in the New Jersey club made lifters that were simply blocks of foam big enough to support any cables. They of course lifted wires but also had some vibration damping. And he sold them for a c .......

172: Speaker Asylum, RE: Multi drivers (0.00)
Posted by hahax@verizon.net on 2020-05-05, 20:51:05 (72.88.210.112)
The closest thing to your description is the largest Canadian Reference 3A speaker, the Grand Veena or the Seema Zen, multiple drivers with minimal crossovers. I believe the old Rectilinear 7 was a mu .......

173: Planar Speaker Asylum, RE: How many here still listen to Quad ESL 57's? (0.00)
Posted by hahax@verizon.net on 2020-05-05, 20:40:28 (72.88.210.112)
David's amps essentially never need tubes. He designs that way. The prototype BA150 was turned on in 1972 and turned off in 1977 with no measureable wear on the output tubes. .......

174: General Asylum, RE: Nothing Happened (0.00)
Posted by hahax@verizon.net on 2020-05-05, 20:36:01 (72.88.210.112)
the bits are timed by an internal clock from a storage area so jitter is more a function of electronic design. Amore significant improvement can probably come from good anti-vibration feet. Microphoni .......

175: Cable Asylum, RE: Alternate Biwiring setup?? (0.00)
Posted by hahax@verizon.net on 2020-05-04, 20:29:29 (72.88.210.112)
No exactly the same but related. I used to use Fulton Gold cable which had high inductance which damps highs. A friend suggested running the + for both speakers on one set of Fultons and similarly the .......

176: General Asylum, RE: Speaking of old, any music you've been listening to for more than 50 years? (0.00)
Posted by hahax@verizon.net on 2020-05-03, 20:41:19 (72.88.210.112)
The Pentangle from the late 60s. A great pure acoustic folk/jazz group. It was the 1st non-classical album reviewed in Stereophile and praised as an excellent recording. Gordon Holt got criticized whe .......

177: Speaker Asylum, RE: port bungs - damped reflex or sealed box? (0.00)
Posted by hahax@verizon.net on 2020-05-02, 20:38:02 (72.88.210.112)
Basically agree. If the speaker hasn't been designed to stuff the port you'll probably lose too much bas and upset the balance of the speaker. There have been speakers designed with stuffed ports, the .......

178: Speaker Asylum, RE: Extending the FR with EQ negates at least some of the advantage (0.00)
Posted by hahax@verizon.net on 2020-04-29, 19:58:40 (72.88.210.112)
I don't think there is a problem with equalization if you simulate a true closed box roll off(transfer function). I fit looks like a good Qts, it is. .......

179: Speaker Asylum, RE: Sealed enclosures, compared to reflex, (0.00)
Posted by hahax@verizon.net on 2020-04-28, 20:44:49 (72.88.210.112)
Glad to know that someone else knows that acoustic suspension and infinite baffle are not interchangeable, that acoustic suspension is infinite baffle but the reverse need not be true. I would differ .......

180: Vinyl Asylum, RE: Users of LO MMs/MIs - such as Grado "Statement' series, Pickering XLS4500S or Stanton 785LZE ... (0.00)
Posted by hahax@verizon.net on 2020-04-26, 20:49:26 (72.88.210.112)
It's simple. Just wind less turns on the MM coils. That's why MCs have low output and it's done to keep moving mass down on MCs where the coils move unlike for MMs. So you can get higher output on an .......

181: General Asylum, RE: Who is better? The Beatles or The Rolling Stones? (0.00)
Posted by hahax@verizon.net on 2020-04-26, 20:42:08 (72.88.210.112)
irrelevant question that has no meaning. they're different and both are wonderful I different ways. It's like limiting yourself to just one kind of Scotch and that would be criminal. Drink them all. L .......

182: Speaker Asylum, RE: AMT's (0.00)
Posted by hahax@verizon.net on 2020-04-23, 20:35:10 (72.88.210.112)
Given the super strong magnets on these Arion AMTs I wouldn't use them near a TV. But to be sure check with Arion Audio. .......

183: Speaker Asylum, RE: AMT's (0.00)
Posted by hahax@verizon.net on 2020-04-20, 20:36:28 (72.88.210.112)
It was probably Cheney and the woofer was not a true AMT though it sort of imitated it. It was sort of pairs of conventional drivers facing each other that went back and forth coming together so they .......

184: Speaker Asylum, RE: AMT's (0.00)
Posted by hahax@verizon.net on 2020-04-19, 00:10:00 (72.88.210.112)
The Arion speakers are the only ones that have to be married to woofers. All other AMTs only go low enough to be crossed at higher frequencies. But basically you are dealing with dipoles and have the .......

185: Speaker Asylum, RE: setting up for a shootout (0.00)
Posted by hahax@verizon.net on 2020-04-18, 20:40:59 (72.88.210.112)
No prediction except perhaps for myself. They both have real virtues and some areas where one will be better than the other. They are different enough that the choice will be personal taste like Hagen .......

186: General Asylum, RE: Martin DeWulf (0.00)
Posted by hahax@verizon.net on 2020-04-18, 20:33:46 (72.88.210.112)
RIP, A third sad moment this week for our audio community. I subscribed and missed his publication when it stopped publishing. .......

187: Speaker Asylum, RE: AMT's (0.00)
Posted by hahax@verizon.net on 2020-04-16, 20:41:28 (72.88.210.112)
That's easily the next best but a driver that as a one way in multiples goes as a tall line source. from around 100 Hz to past 20 kHz is ultra impressive. And there is a single driver version with the .......

188: Speaker Asylum, RE: AMT's (0.00)
Posted by hahax@verizon.net on 2020-04-15, 20:48:01 (72.88.210.112)
It took a while for the AMT to get established because everyone waited for the patent to run out. The most interesting AMT designs are done by Mike Kalellis of Arion Audio. His speakers are almost ful .......

189: Amp/Preamp Asylum, RE:proof that tubed amps are better? (0.00)
Posted by hahax@verizon.net on 2020-04-15, 20:37:35 (72.88.210.112)
You've proved ONE thing. You found the right amp for you. I have a friend who once wrote an article 'Color Me Perfect'. He mean everything colors at least a little and we each choose our own tint. And .......

190: Vinyl Asylum, RE: Currently spinning Joni Mitchell (0.00)
Posted by hahax@verizon.net on 2020-04-14, 21:07:52 (72.88.210.112)
I remember her on a Philadelphia radio station called Folklore before any recordings. She started as a duet, Chuck and Joni Mitchell, her ex husband that became the subject of some of her early great .......

191: Vintage Asylum, RE: What's the oldest piece you bought new, still own, still use? (0.00)
Posted by hahax@verizon.net on 2020-04-14, 21:02:01 (72.88.210.112)
An ADC Point 4E cartridge, my 1st one that went in my AR turntable from my Dynaco , AR speaker system. And, of course, I don't use it any longer. I also have a Decca 4RC cartridge from the 60s and I a .......

192: General Asylum, RE: Art Dudley RIP (0.00)
Posted by hahax@verizon.net on 2020-04-14, 20:57:40 (72.88.210.112)
Huge loss to his family, of course, and to audio. One of my favorite writers for his intelligence and clarity explaining his views and his craftsmanship with words. And that's in spite of the fact my .......

193: Critic's Corner, RE: Clark Johnsen, RIP (0.00)
Posted by hahax@verizon.net on 2020-04-09, 20:35:32 (72.88.210.112)
I never met him but having read his work so often it feels like losing a friend. .......

194: Tube DIY Asylum, RE: Suggestion on tube amp (0.00)
Posted by hahax@verizon.net on 2020-04-07, 20:32:06 (72.88.210.112)
I note the Audio Research M100s are old models. The most powerful old tube amps I know of were the Melos monoblocks rated at 400 watts(they actually put out more) in TRIODE with about 25 watts class A .......

195: Speaker Asylum, RE: How can audiophiles...... (0.00)
Posted by hahax@verizon.net on 2020-04-06, 19:18:51 (72.88.210.112)
Done properly, active crossover before decent amps, an active speaker should be able to be better than a passive one. A passive crossover is a lousy to very lousy load for an amp(why ridiculously cost .......

196: Vinyl Asylum, RE: suggestions on mounting carts to rega tables (0.00)
Posted by hahax@verizon.net on 2020-04-04, 21:49:16 (72.88.210.112)
As a last result I suspect you can take the arm off the table and install the cartridge. Pain in the rear but for most of us it's a 1 time or so thing. .......

197: Planar Speaker Asylum, RE: Magnepan 3.7i and Berning Quadrature Z (0.00)
Posted by hahax@verizon.net on 2020-04-03, 20:38:21 (72.88.210.112)
Haven't used either but it appears Berning amps are very linear and dynamic. But they have very low damping factors which can cause frequency response variations due to speaker impedance variations. B .......

198: Vinyl Asylum, RE: Plugged in my old Advent 300 Today (0.00)
Posted by hahax@verizon.net on 2020-04-02, 20:43:40 (72.88.210.112)
My memory is the Advent receiver played well above its weight, handling reactive loads better than most amps of its era. But its phono stage was always specially cited in reviews. Your comments seem t .......

199: Vinyl Asylum, RE: If you're in the mood to experiment (0.00)
Posted by hahax@verizon.net on 2020-04-02, 20:39:28 (72.88.210.112)
If I recall correctly, Deccas age way less rapidly than almost all cartridges because they don't us rubber as the suspension which hardens with both use and age. I believe there is some rubber used bu .......

200: Cable Asylum, RE: Bananas and spades: to solder or not to solder? (0.00)
Posted by hahax@verizon.net on 2020-04-01, 20:43:52 (72.88.210.112)
I recall that decades ago Monster Cable supplied crimping kits for their exotic cables. A dealer that I trusted told me that with the tools supplied the connector/wire connection was essentially oxyge .......

201: Speaker Asylum, RE: AR2Xa speakers (0.00)
Posted by hahax@verizon.net on 2020-03-31, 22:19:34 (72.88.210.112)
By the way the AR2ax speakers changed over the years. The AR2 woofer was used in the early ones and was replaced with the AR5 woofers in later ones. Probably a bigger change was the tweeter. The earl .......

202: Speaker Asylum, RE: AR2Xa speakers (0.00)
Posted by hahax@verizon.net on 2020-03-29, 20:41:55 (72.88.210.112)
They were designed before imaging was a big factor in speaker design. There is no way to get the 3 drivers in a sort of vertical line, best for imaging. If used horizontal the mids and tweeters line u .......

203: Speaker Asylum, RE: This is how the Pipedream subs worked. (0.00)
Posted by hahax@verizon.net on 2020-03-20, 20:54:51 (72.88.210.112)
The production Pipedreams EQ was a simple passive network in front of the sub amplifier. It is true that below resonance in a closed box a driver resists movement powerfully and just wants to stop so .......

204: Critic's Corner, RE: Tom Martin fires a shot across the bow of his own magazine. (0.00)
Posted by hahax@verizon.net on 2020-03-18, 20:42:56 (72.88.210.112)
It will be interesting to see if anything comes of the Eikon. There have often been very good audio speakers like ATC with active crossovers and built in amps that don't have room equalization like th .......

205: Vinyl Asylum, RE: One of the most beautiful songs ever. (0.00)
Posted by hahax@verizon.net on 2020-03-17, 20:31:25 (72.88.210.112)
The song that always got to me was 'The first time' a wonderful simple love song written in the 50s I believe by Ewan McColl for Peggy Seeger(Pete's half sister) who he lived with for decades. In many .......

206: Vinyl Asylum, RE: Spinning Doc Watson, "Southbound." (0.00)
Posted by hahax@verizon.net on 2020-03-17, 20:27:07 (72.88.210.112)
I only saw him live once. It was awesome. He was finger picking so fast it looked like he was strumming the guitar. .......

207: Planar Speaker Asylum, RE: Measures at 80dB sensitivity? (0.00)
Posted by hahax@verizon.net on 2020-03-14, 20:48:02 (72.88.210.112)
Irregardless of the sensitivity at the standard measurement distance we listen at longer distances and planar speaker loudness drops more slowly with distance than 'conventional' speakers and are effe .......

208: Vinyl Asylum, RE: How many of us have finally reached... (0.00)
Posted by hahax@verizon.net on 2020-03-14, 20:41:58 (72.88.210.112)
I've been constant for a number of years but I know that it could change easily. Up to now it's been a very long process that began in the early 80s with most of the front end from the 80s. Early VPI .......

209: General Asylum, RE: A level-headed view of objectivism vs subjectivism and blind listening (0.00)
Posted by hahax@verizon.net on 2020-03-13, 00:21:01 (72.88.210.112)
why does it have to be subjective versus objective? Why can't we use both tools in finally making an over all conclusion? At times a subjective result can tell us an objective result isn't the entire .......

210: Speaker Asylum, RE: Maybe not Gen 2 but i preferred the smaller 7 over 11 or 19.... (0.00)
Posted by hahax@verizon.net on 2020-03-11, 20:27:03 (72.88.210.112)
20A and 19A(pro model) are the same speakers. it's just the 20 has a bigger box outside but internal volume is the same. You do save on speaker stands with the ATC20A .......

211: Speaker Asylum, Re: ATC SCM19 (Gen 2) (0.00)
Posted by hahax@verizon.net on 2020-03-10, 12:38:17 (72.88.210.112)
Main driver is very different with every trick ATC has developed which is not true for the smaller versions. If you saw a picture of the driver out of the box it would sell you. The magnet looks like .......

212: Speaker Asylum, RE: Book shelf speaker recommendation (0.00)
Posted by hahax@verizon.net on 2020-03-09, 20:58:45 (72.88.210.112)
ATC speakers are very accurate(neutral) and very dynamic but also inefficient and love lots of power. They don't seem to be your taste in speakers but I recommend looking into them. The SCM 19 is thei .......

213: Speaker Asylum, RE: AR2Xa speakers (0.00)
Posted by hahax@verizon.net on 2020-03-07, 20:01:22 (72.88.210.112)
For what it's worth I suspect these speakers were designed and voiced with Dynaco tube amps, probably Mk3's. And they were commonly used with Dynaco Stereo 70s. AR and Dynaco often exhibited together( .......

214: Speaker Asylum, RE: AR2Xa speakers (0.00)
Posted by hahax@verizon.net on 2020-03-06, 20:45:20 (72.88.210.112)
They ax. But mine were converted for $10 each with kits from ARre very inefficient, the more power the better. My first speakers were AR2a which had 2 5" drivers instead of the 3 " in AR2a with new 3" .......

215: Speaker Asylum, RE: this is wrong on the filled part (0.00)
Posted by hahax@verizon.net on 2020-02-26, 20:43:47 (72.88.210.112)
I never said anything about fiberglass although you are correct about its use here in early acoustic suspension designs. But that would be the same for any kind of box. You can do acoustic suspension .......

216: General Asylum, RE: What should I expect to hear above 4-5 khz? (0.00)
Posted by hahax@verizon.net on 2020-02-26, 20:36:56 (72.88.210.112)
There really is not much energy in the highs for most music. There is no loss of bass with solid state. It's the reverse with tubes where the impedance rises as around bass resonance the speaker respo .......

217: Speaker Asylum, RE: Not passive, not just active but DSP. (0.00)
Posted by hahax@verizon.net on 2020-02-25, 22:07:28 (72.88.210.112)
And for what it's worth, the last speaker, Gordon Holt the founder of Stereophile in the 60s, spent his own money on was the ATC 50A powered 3 way speaker. At the time, about 15 years ago, it was one .......

218: Speaker Asylum, RE: Why not acoustic suspension for..... (0.00)
Posted by hahax@verizon.net on 2020-02-25, 20:59:04 (72.88.210.112)
Fiberglass has nothing to do with acoustic suspension. All acoustic suspension speakers are closed boxes. The reverse is not true. Many closed boxes are not acoustic suspension. A good old example of .......

219: Speaker Asylum, RE: Spicas, Sequerra, double Advent (0.00)
Posted by hahax@verizon.net on 2020-02-25, 20:50:57 (72.88.210.112)
Double advents are nice if you like tweeter interference affects for mids and highs. I did a comparison in the 70s when HP proposed the idea. Double advents lose significant focus compared to singles. .......

220: Speaker Asylum, RE: Since passive xovers are so problematic (0.00)
Posted by hahax@verizon.net on 2020-02-24, 21:29:23 (72.88.210.112)
I kind of agree with you. I've heard superb passive crossovers. But then I've heard two similar speakers xover wise and one id more open even though both cross at 2K. Why? one rings at 5K, the other a .......

221: Speaker Asylum, RE: Speaker builders are problematic not the xover (0.00)
Posted by hahax@verizon.net on 2020-02-24, 07:03:31 (72.88.210.112)
I basically agree with you. There are some very good passive crossovers. The question is whether the best active system can be an improvement on the best passive speaker system. .......

222: Speaker Asylum, RE: they are not Beneficial (0.00)
Posted by hahax@verizon.net on 2020-02-24, 07:00:43 (72.88.210.112)
In the very high end cost is no longer a relevant factor. .......

223: Speaker Asylum, RE: that is one reason why speakers w very simple crossovers can sound so good (eg Reference 3a) (0.00)
Posted by hahax@verizon.net on 2020-02-24, 06:59:30 (72.88.210.112)
and if you need a more complex xover an active xover does the same thing, a direct connection to the drivers. By the way I'm sure there is a series capacitor on your tweeter to protect it from low fre .......

224: Speaker Asylum, RE: Since passive xovers are so problematic (0.00)
Posted by hahax@verizon.net on 2020-02-23, 20:47:24 (72.88.210.112)
If you are thinking of basic electronic xovers even with variable slopes and crossover points it won't work as well as a good passive one because good crossovers compensate for driver problems(ALL dri .......

225: Speaker Asylum, RE: Amplifier for LinkWitz LX521 Reference (0.00)
Posted by hahax@verizon.net on 2020-02-12, 20:41:41 (72.88.210.112)
so there are no front to back interference affects with long bass wave lengths with dipole loading? .......

226: Speaker Asylum, RE: Amplifier for LinkWitz LX521 Reference (0.00)
Posted by hahax@verizon.net on 2020-02-11, 20:43:28 (72.88.210.112)
It's the woofers that need power since the crossover has built in bass boost to compensate for dipolar bass roll off. The mids, even though they are dipolar suffer very little from this due to much sh .......

227: Amp/Preamp Asylum, RE: Polarity Question (0.00)
Posted by hahax@verizon.net on 2020-02-02, 20:44:34 (72.88.210.112)
You do want a positive pulse to produce a forward motion in the woofer. The problem can be with all the messing around in our soft ware with multiple tracks some tracks can have one polarity and other .......

228: Speaker Asylum, RE: Klipcsh, Volti, JBL (0.00)
Posted by hahax@verizon.net on 2020-02-01, 20:51:37 (72.88.210.112)
The bass is almost never a true horn, it's often a reflex box which is sometimes equalized with a separate amp. Bass horns are on the order of magnitude of 10 feet long with 6 square foot mouths. ::: .......

229: Speaker Asylum, RE: Define too big (nt) (0.00)
Posted by hahax@verizon.net on 2020-01-30, 20:44:47 (72.88.210.112)
Then you are looking at a bass reflex design with horns for the upper drivers. A real bass horn is huge. With compromises the closest you can come is the Klipschorn which even with the latest designs .......

230: Critic's Corner, RE: SpeakerMeasurements.com (0.00)
Posted by hahax@verizon.net on 2020-01-30, 20:33:29 (72.88.210.112)
Foe small ports the ability of the port lessens at very high levels(the port is too small a 'driver' to play loud. This means the deep bass starts rolling off faster at high levels than at lower ones .......

231: Critic's Corner, RE: The problem is the one-size-fits all fallacy..... (0.00)
Posted by hahax@verizon.net on 2020-01-30, 20:30:28 (72.88.210.112)
the measurements still work but how to interpret them for planars and line sources varies from conventional speakers. The drop off of loudness for planars and line sources per unit of distance is half .......

232: Amp/Preamp Asylum, RE: audio research REF Anniversary 40 (0.00)
Posted by hahax@verizon.net on 2020-01-28, 20:42:59 (72.88.210.112)
Audio Research used to flip output tubes between EL34s and 6L6s as they changed the Dual 50 design. I recall at least 10 variations of the amp, some of which even got recalled before being released. M .......

233: Critic's Corner, RE: Sensitivity is very useful (0.00)
Posted by hahax@verizon.net on 2020-01-28, 20:37:45 (72.88.210.112)
And there is the question of short loudness peaks even when you are listening at 'average' levels. I've been told pianos can do over 20 dB peaks which means even fairly efficient speakers can need lar .......

234: Critic's Corner, RE: Interpreting Measurements... (0.00)
Posted by hahax@verizon.net on 2020-01-28, 20:35:11 (72.88.210.112)
I haven't heard a Revel lately but I have friend, Murray Zeligman, a very creative speaker designer who knew Kevin Voecks well years ago. And he told me Kevin was one of the good guys who knew what he .......

235: Amp/Preamp Asylum, RE: audio research REF Anniversary 40 (0.00)
Posted by hahax@verizon.net on 2020-01-28, 03:17:49 (72.88.210.112)
It was decades ago but I also had two variations of the Dual 50 amp, a Dual 51 amp and a Dyna PAS 3 modified by Audio Research. .......

236: Amp/Preamp Asylum, RE: audio research REF Anniversary 40 (0.00)
Posted by hahax@verizon.net on 2020-01-27, 20:37:51 (72.88.210.112)
The SP 10 MK 2 was probably the ultimate version of the first generation of Audio Research preamps, a good one to keep. I had one of the first 50 SP3 preamps. Sometimes I'm sorry I didn't hold on to i .......

237: Critic's Corner, RE: Interpreting Measurements... (0.00)
Posted by hahax@verizon.net on 2020-01-27, 20:33:29 (72.88.210.112)
Some of Floyd Toole's work on measurements backed up by double blind tests would seem to support your view. .......

238: Digital Drive, RE: Half Width Transport (0.00)
Posted by hahax@verizon.net on 2020-01-24, 20:35:22 (72.88.210.112)
The Nuprime CDT-8 is under 9 1/2 inches wide. .......

239: Vinyl Asylum, Oxidation On Removeable Head Shell Contacts (0.00)
Posted by hahax@verizon.net on 2020-01-18, 20:45:03 (72.88.210.112)
I played my phono for the 1st time in a while today. I use a modded early VPI HW 19 table and Fidelity research FR 64 FX arm. There was no problem until I tried 2 of my other 3 pickups mounted in sepa .......

240: Critic's Corner, RE: Eh, you can choose your Q with either approach (0.00)
Posted by hahax@verizon.net on 2020-01-16, 20:35:03 (72.88.210.112)
Wrong, as I said and is well known reflex rolls at 24 dB/octave and closed box at 12 dB/octave and because of this reflex bass continues as a resonance longer than closed box bass. Please read any boo .......

241: Critic's Corner, RE: Eh, you can choose your Q with either approach (0.00)
Posted by hahax@verizon.net on 2020-01-15, 01:17:55 (72.88.210.112)
overhang is simple, it's continuing to move after signal is removed. what is reflex? Is it different from bass reflex? I have never heard the term. Is it different from bass reflex? and yes there are .......

242: Critic's Corner, RE: Eh, you can choose your Q with either approach (0.00)
Posted by hahax@verizon.net on 2020-01-13, 20:34:10 (72.88.210.112)
You are incorrect. Reflex has 2 impedance peaks, one for the box and one for the port. Closed box(or the rarely used variovent, highly stuffed port that has essentially no acoustic output) has only on .......

243: General Asylum, RE: Anyone seen the Pangea Audio Rack? (0.00)
Posted by hahax@verizon.net on 2020-01-12, 18:55:18 (72.88.210.112)
Can anyone add info on the rigidity of the updated, more costly, x braced version? .......

244: Critic's Corner, RE: Eh, you can choose your Q with either approach (0.00)
Posted by hahax@verizon.net on 2020-01-11, 14:21:40 (72.88.210.112)
Over damped is a Q less than 0.5. No one makes a speaker with a Q under 0.5. Almost no one makes a speaker with a Q even at 0.5. My argument is that given a well designed closed box and a well designe .......

245: Critic's Corner, RE: Eh, you can choose your Q with either approach (0.00)
Posted by hahax@verizon.net on 2020-01-11, 07:35:45 (72.88.210.112)
Transient wise lower Q is always more accurate for both closed box and reflex. The price may be leaner bass balance. But closed box always is ultimately better damped in the bass and thus always more .......

246: Critic's Corner, RE: Bass Reflex vs. Closed Box (0.00)
Posted by hahax@verizon.net on 2020-01-10, 22:55:17 (72.88.210.112)
closed box, any Magico is closed box with low Q. Also the ATC 19, both passive and active. There are a few others like YG but closed box designs are rare because good ones don't sound bassy like many .......

247: Critic's Corner, RE: AFAIK, a 60 Hz bump would totally depend on damping (Qtc) (0.00)
Posted by hahax@verizon.net on 2020-01-10, 21:37:39 (72.88.210.112)
Sealed and acoustic suspension are not the same. Acoustic suspension is sealed. Sealed does not have to be acoustic suspension. In a set theory sense acoustic suspension is a proper sub set of closed .......

248: Critic's Corner, re: boomy sealed boxes... (0.00)
Posted by hahax@verizon.net on 2020-01-10, 20:38:14 (72.88.210.112)
bad closed box design is boomy. bad reflex design is even boomier. .......

249: Critic's Corner, RE: As JA explains in nearly every speaker review: (0.00)
Posted by hahax@verizon.net on 2020-01-10, 20:36:35 (72.88.210.112)
The best bass reflex ALWAYS has more overhang than the best closed box speaker. Some people like it but it is less accurate. Bass reflex is more efficient than closed box. And it is easier to extend t .......

250: General Asylum, RE: at what age did music make a profound impact in your life? (0.00)
Posted by hahax@verizon.net on 2020-01-05, 20:26:23 (72.88.210.112)
My oldest memory is when I was about 6 or 7 years old listening to Paul Robson singing Old Man River on a juke box. I've never forgotten how it sounded and every time I hear the song sung by someone e .......

251: Vinyl Asylum, RE: The real need for a digital VTF scale? (0.00)
Posted by hahax@verizon.net on 2020-01-04, 20:46:53 (72.88.210.112)
There is no need for digital precision of VTF. The problem is balancing VTA and VTF. Set VTF first, then set VTA. If you do the reverse as you vary VTF you are changing VTA which is definitely noticea .......

252: General Asylum, RE: REVIEW: First Watt Aleph J Amplifier (SS) (0.00)
Posted by hahax@verizon.net on 2019-12-28, 20:19:35 (72.88.210.112)
Mine were a year or two earlier. The designer is a friend and he supplied the cabinets, parts and crossovers. I assembled them. He also got the 18" woofers for me and had the boxes built. The woofers .......

253: General Asylum, RE: REVIEW: First Watt Aleph J Amplifier (SS) (0.00)
Posted by hahax@verizon.net on 2019-12-27, 18:48:40 (72.88.210.112)
Nice to know some one else is also using a set of Froy 3 speakers. My set also has a set of 18" woofers crossed over passively designed by the Froy 3 designer. .......

254: General Asylum, RE: Went to a friends house to refine a system again in PA (0.00)
Posted by hahax@verizon.net on 2019-12-16, 20:41:38 (72.88.210.112)
Were the speakers DIY? I only ask because Melos for a short time made a speaker with an 8" Dynaudio woofer, Strathern mid and piezo tweeter and your description reminded me of it. .......

255: Speaker Asylum, RE: Why do audiophiles buy speakers? (0.00)
Posted by hahax@verizon.net on 2019-12-13, 20:42:52 (72.88.210.112)
You need to learn a lot more about the combinations of design, parts, etc. and their relationships before making simplistic statements. If it were as easy as you imply everyone would make their own sp .......

256: High Efficiency Speaker Asylum, RE: I think the important thing to remember is sensitivity (SPL) varies with distance -- (0.00)
Posted by hahax@verizon.net on 2019-12-10, 21:27:31 (72.88.210.112)
and that the distance affect varies with the shape of propagation. It's much faster with a point source and slower with a line source or planar. .......

257: Speaker Asylum, RE: YouTube, and the Speaker Review? (0.00)
Posted by hahax@verizon.net on 2019-12-09, 20:39:59 (72.88.210.112)
All they're hearing, of course, is the system they are playing it in which I bet is often a set of cheap computer speakers. But while you are correct it won't sink in and people will continue to liste .......

258: General Asylum, RE: No one should ever make a comment on sound (0.00)
Posted by hahax@verizon.net on 2019-12-09, 14:55:53 (72.88.210.112)
You are wrong. You are being simplistic because you want simple answers to complex questions. .......

259: Planar Speaker Asylum, RE: "NO attachments to the sides." ... (0.00)
Posted by hahax@verizon.net on 2019-12-08, 19:49:09 (72.88.210.112)
but not tautly and probably as a safety mechanism so there isn't too much displacement in the gap at any point. I still stand by my definition of a ribbon versus a planar. .......

260: Vintage Asylum, RE: While amplification is up for grabs (0.00)
Posted by hahax@verizon.net on 2019-12-08, 19:45:30 (72.88.210.112)
Nostalgia. I owned one of the 1st 50 of these. 25 were made with a thermistor for slow warm up. 25 just had a wire in that position. Mine was the 24th with a thermistor to fail. Needless to say the fi .......

261: General Asylum, RE: No one should ever make a comment on sound (0.00)
Posted by hahax@verizon.net on 2019-12-08, 19:42:29 (72.88.210.112)
but the brain tells you what you think it means. Just sensing it has little meaning. .......

262: Planar Speaker Asylum, RE: What is in an audio name? (0.00)
Posted by hahax@verizon.net on 2019-12-07, 19:16:23 (72.88.210.112)
The Maggie ribbon tweeter is a ribbon. What makes it a ribbon for me is that it is LOOSELY suspended between the top and bottom of the frame with NO attachments to the sides. The ribbon floats in a ma .......

263: Amp/Preamp Asylum, RE: AES Six Pac Questions (0.00)
Posted by hahax@verizon.net on 2019-12-07, 19:05:16 (72.88.210.112)
you probably can get away with what you describe but why would you. It certainly has to degrade the performance of the amp even if in the less than ideal conditions the system sounds pretty good. ::: .......

264: General Asylum, RE: No one should ever make a comment on sound (0.00)
Posted by hahax@verizon.net on 2019-12-07, 19:02:36 (72.88.210.112)
Actually hearing is done with the brain. The auditory system is just a means to get the data to the brain. It's the brain that hears differences. If a listener can consistently 'hear' differences it d .......

265: Vinyl Asylum, RE: which mm cartridge (0.00)
Posted by hahax@verizon.net on 2019-12-05, 20:45:02 (72.88.210.112)
There have been low output non MC pickups, some old Stantons, Soundsmith, Grado and my favorite the old Technics EPC 100 MK4 which was medium output at 1 mv. There probably are other possibilities. :: .......

266: Vinyl Asylum, RE: Perfection simply doesn't exist with vinyl replay. (0.00)
Posted by hahax@verizon.net on 2019-12-05, 20:41:19 (72.88.210.112)
But is there perfection in non vinyl play or just different compromises? .......

267: Vinyl Asylum, RE: SME arms will no longer be available to the retail and OEM markets (0.00)
Posted by hahax@verizon.net on 2019-12-04, 20:34:01 (72.88.210.112)
Hope we eventually get the whole story. Arms were the seeds and roots and souls of their business. It's hard to believe they don't make very good profits on their arms. They will be missed. But it cer .......

268: Tweakers' Asylum, RE: Ikea Lämplig butcher blocks (0.00)
Posted by hahax@verizon.net on 2019-12-02, 20:30:15 (72.88.210.112)
LACK tables were a classic Linn recommendation decades ago. .......

269: Digital Drive, RE: CD enhancing fluids? (0.00)
Posted by hahax@verizon.net on 2019-11-27, 20:33:56 (72.88.210.112)
Anti static fluids can make a significant CD sound improvement. But they have 2 problems. First they have to be applied each playing. Second they don't even last through an entire CD. .......

270: Speaker Asylum, RE: Linn Isobariks -ummm (0.00)
Posted by hahax@verizon.net on 2019-11-19, 20:41:04 (72.88.210.112)
top of the line at the time was the active version with electronic crossover .......

271: Speaker Asylum, RE: BBC Monitor?? LS5/5?? (0.00)
Posted by hahax@verizon.net on 2019-11-17, 19:36:56 (72.88.210.112)
The real BBC LS5/8 was always an active speaker. Early ones used one modified Quad 405 amp per speaker with built in crossover. One channel drove the woofer designed by the BBC. The other channel whic .......

272: Speaker Asylum, RE: Small subwoofers (0.00)
Posted by hahax@verizon.net on 2019-11-11, 20:32:05 (72.88.210.112)
80 Hz is barely a woofer. It's at best mid bass, certainly missing two octaves it has neither bass nor sub bass. But I'm curious whether any manufacturer would call this a sub woofer. What product(s) .......

273: Speaker Asylum, RE: Cone profiles? Bowl shaped, not trumpet. (0.00)
Posted by hahax@verizon.net on 2019-11-06, 20:24:46 (72.88.210.112)
I recall reading about this from the BBC when they still were building their own speakers. They spoke about trumpet shape for cone drivers but with an increasing curvature as the cone approached the v .......

274: Critic's Corner, RE: Whatever happened to, "I like the way that sounds" . . . (0.00)
Posted by hahax@verizon.net on 2019-10-29, 17:26:32 (72.88.210.112)
I know it's been a few decades but probably the best audio measurements were done in the old Audio magazine by Richard Heyser. His reviews were special and a step above anything probably ever publishe .......

275: Critic's Corner, RE: Whatever happened to, "I like the way that sounds" . . . (0.00)
Posted by hahax@verizon.net on 2019-10-26, 20:29:03 (72.88.210.112)
Absolutely fine when choosing your own system but what has this to do with fidelity? And if it's a published review do you want 'it sounds good to me' as a review? What good is this unless you persona .......

276: Critic's Corner, RE: "Throw Out The..." (0.00)
Posted by hahax@verizon.net on 2019-10-24, 20:43:22 (72.88.210.112)
If an amp has to at least be able to pass sine waves the single ended amps must be considered non hi fi since they can't accurately pass sine waves. They compress the negative half of the wave relativ .......

277: Speaker Asylum, RE: I bought a pair of large Advents for $30 with a frequency response of (0.00)
Posted by hahax@verizon.net on 2019-10-19, 20:36:46 (72.88.210.112)
There's always room lift. I reviewed apair of ATC speakers that were supposedly 6 dB down around 50 Hz. In my room they were 8 dB up at 30 Hz. But since they had a Q of 0.5 they still didn't boom with .......

278: Vinyl Asylum, RE: MM cartridge recommendations (=$1k (0.00)
Posted by hahax@verizon.net on 2019-10-19, 20:32:31 (72.88.210.112)
If you go the vintage route and you can find them the best MM pickups ever were made by Technics of all people, the EPC 205MK4 is superb and the EPC 100 MK4 is even way better but hard to find since i .......

279: Speaker Asylum, RE: Tuneful bass (0.00)
Posted by hahax@verizon.net on 2019-10-18, 20:44:26 (72.88.210.112)
Unfortunately too many listeners including audiophiles expect to hear 'bass' even if it's not on the input or they think a speaker is bass shy. So many, many speakers are designed under damped and wit .......

280: Critic's Corner, RE: Audio Science Review (0.00)
Posted by hahax@verizon.net on 2019-10-18, 20:36:12 (72.88.210.112)
As an electrical/mechanical product a system is ultimately measurable if you define what you expect from the output given the input. Normally this is no change. We can't do it now. But this doesn't me .......

281: Speaker Asylum, RE: Make sure the Kefs have the Kube. (0.00)
Posted by hahax@verizon.net on 2019-10-17, 20:50:05 (72.88.210.112)
I'm not sure all versions of the KEF 105 came with the Kube. I have old magazines with 105 tests and they don't mention the Kube. I do know the KEF 105/3 used a kube but I don't think the 105 or the 1 .......

282: Speaker Asylum, RE: Is it heresy to subwoof.... (0.00)
Posted by hahax@verizon.net on 2019-10-14, 20:36:03 (72.88.210.112)
IT's not easy to sub woofer an LS3/5a. Other similar speakers are easier. The LS3/5a has a big hump in the mid bass and then dies below that. The hump is to make the speaker sound like it has more bas .......

283: Vinyl Asylum, RE: Effects Of Compression (0.00)
Posted by hahax@verizon.net on 2019-10-07, 20:32:53 (72.88.210.112)
compression sucks. It makes music sound canned. Dynamic linearity is essential to reproduction seeming live. .......

284: Tube DIY Asylum, RE: Bypassing Capacitors (0.00)
Posted by hahax@verizon.net on 2019-09-26, 20:40:37 (72.88.210.112)
The smaller the capacitor, the less inductance it has. Lower inductance means faster release of energy. So the small bypass starts the electricity release faster, ahead of the main capacitor making th .......

285: Digital Drive, RE: CD mats: how do they improve the sound? (0.00)
Posted by hahax@verizon.net on 2019-09-25, 20:38:08 (72.88.210.112)
I had a friend who worked on static electricity and its affects on CD sound. And he convinced me that it was an easily noted problem. I recall a test with and without a treatment he developed and it w .......

286: General Asylum, RE: Are we serious? (0.00)
Posted by hahax@verizon.net on 2019-09-23, 20:46:37 (72.88.210.112)
Good jokes are always serious. .......

287: Digital Drive, RE: CD mats: how do they improve the sound? (0.00)
Posted by hahax@verizon.net on 2019-09-23, 20:45:02 (72.88.210.112)
Thank you. You're one of the few who realize it's actually an analog signal of on and not on. And you can add timing(jitter) to the equation which is also analog and has a significant affect on recons .......

288: Speaker Asylum, RE: Anybody got schematic or explanation of the infinite xover? nt (0.00)
Posted by hahax@verizon.net on 2019-09-14, 20:44:05 (72.88.210.112)
Hope I'm in the right direction and this is only conceptual. Modafieri was a great FM tuner designer(he did designs for McIntosh). FM tuners need very fast filters(squarewave like). I thought I read h .......

289: Tweakers' Asylum, RE: Component electrical safety in a violent thunderstorm (0.00)
Posted by hahax@verizon.net on 2019-09-13, 20:48:07 (72.88.210.112)
I have a friend(I have nothing to do with the company) who makes a device for surge protection worth looking into. It called the Thorstop and is made by Kworks Audio. Contact is: Gorkuz@yahoo.com ::: .......

290: Amp/Preamp Asylum, RE: Audio Note UK Empress Silver Monoblocks - Christmas Has Come Early (0.00)
Posted by hahax@verizon.net on 2019-09-13, 20:36:50 (72.88.210.112)
I hate to be a nit picker but pure class A is a redundancy and seems to imply some misunderstanding of what class A is. It's either class A or it's not. If an amp is not all class A it's AB no matter .......

291: Vinyl Asylum, RE: The platter is kind of lightweight... (0.00)
Posted by hahax@verizon.net on 2019-09-04, 19:39:56 (72.88.210.112)
my memory is the old Acoustic Research platter wasn't much heavier and it was a good table. They obviously are trying a different approach to control costs. Given their track record they at least dese .......

292: High Efficiency Speaker Asylum, RE: Responses to the Klipschorn review in Stereophile (0.00)
Posted by hahax@verizon.net on 2019-08-15, 20:51:41 (72.88.210.112)
I've always found Art Dudley to be one of the most open minded reviewers of the last couple of decades. I say this as an audiophile of 5 decades who has read darn near every American Journal and many .......

293: Critic's Corner, RE: Harry should have stayed an environmental reporter (0.00)
Posted by hahax@verizon.net on 2019-07-31, 20:48:17 (72.88.210.112)
what he did for the environment is irrelevant in this venue. Your criticism makes no sense. And while I enjoyed HP I often disagreed with him(especially the double Advents). But any intelligent person .......

294: Critic's Corner, RE: Harry should have stayed an environmental reporter (0.00)
Posted by hahax@verizon.net on 2019-07-30, 20:40:01 (72.88.210.112)
Harry may not have been perfect in many ways but I found him interesting and fun to read even when I differed with him. And like him or not he was hugely significant to audio. It's obvious you don't .......

295: Critic's Corner, RE: I miss the small format, typos, and no ads . . . (0.00)
Posted by hahax@verizon.net on 2019-07-24, 20:30:21 (72.88.210.112)
Just thought I should remind readers that the 1st few years of Stereophile was a large format albeit with not many pages. .......

296: Digital Drive, RE: digital reclockers -- which one? (0.00)
Posted by hahax@verizon.net on 2019-07-22, 20:38:42 (72.88.210.112)
I've successfully used two older Monarchy reclockers in series. The extra reclocker seems to make a smaller but noticeable improvement over a single box. I've never tried three but have been told that .......

297: Planar Speaker Asylum, RE: Alsyvox planars...better than your beloved horn speaker and box speaker design? (0.00)
Posted by hahax@verizon.net on 2019-07-21, 20:31:50 (72.88.210.112)
then who says they are better than anything else? the manufacturer? .......

298: Vintage Asylum, RE: Double Advents in TAS article - I've never seen versions like those (0.00)
Posted by hahax@verizon.net on 2019-07-19, 20:44:13 (72.88.210.112)
Just to cause controversy, HP was wrong. Single Advents were better. I tried them and then went back to singles. The bass was better balanced. The sound field was more focused and the definition was b .......

299: Critic's Corner, RE: Audio mags at Barnes and Noble (0.00)
Posted by hahax@verizon.net on 2019-07-19, 20:38:18 (72.88.210.112)
It's not that much cheaper. But it's safer. You won't miss issues. I recall subscribing in the 70s. I think it only cost me $5 for a year. But you couldn't use credit cards then to pay across the ocea .......

300: General Asylum, RE: Those are pretty simple but................... (0.00)
Posted by hahax@verizon.net on 2019-07-17, 20:36:28 (72.88.210.112)
I disagree. They are not simple unless you want a basic crossover that doesn't take in account the non-flat drivers used in even our best speakers. Great crossovers often include compensation for driv .......

301: Vinyl Asylum, RE: amari tables flash sale - scam or best deal ever? (0.00)
Posted by hahax@verizon.net on 2019-07-04, 22:44:03 (72.88.210.112)
Let's see. You're writing about the details which at the prices listed are irrelevant. The question asked is are the prices possible for real. The probability is as bad as winning the lottery. ::: TOP .......

302: Speaker Asylum, RE: I say a sub for several reasons (0.00)
Posted by hahax@verizon.net on 2019-07-02, 20:34:31 (72.88.210.112)
Plus as long as the sub has a high pass filter(most do, REL as an example does not) the load on the main speakers will be less by a significant factor, reducing distortion and allowing the system to g .......

303: Speaker Asylum, RE: Looks matter (0.00)
Posted by hahax@verizon.net on 2019-06-28, 13:29:19 (72.88.210.112)
Looks matter but I bet most of the time it's our biases about what looks like it sounds good. I know it influences me and I do know something about shape and how that affects performance. I like conve .......

304: Vintage Asylum, RE: what's the modern version of a Polk Audio Monitor 7? (0.00)
Posted by hahax@verizon.net on 2019-06-18, 20:43:34 (72.88.210.112)
The Polk advertising was brilliant. They never used the term passive radiator but used the term fluid coupled if I remember correctly. I wonder how many buyers thought they were buying a 3 way speaker .......

305: Speaker Asylum, RE: Harbeth 40.2 and Stirling LS3/6 (0.00)
Posted by hahax@verizon.net on 2019-06-17, 20:46:36 (72.88.210.112)
I don't know the Harbeth but if the Stirling LS3/6 sounds like the original BBC LS3/6 built by Rogers in the 70s which is what is claimed then it is one of the most beautifully colored(I do mean this .......

306: Speaker Asylum, RE: Foam port plugs (0.00)
Posted by hahax@verizon.net on 2019-06-14, 20:22:07 (72.88.210.112)
Make them. Foam is cheap. Buy extra and you can tune to your taste by trying different thicknesses and changing how much of the area of the port is covered. .......

307: High Efficiency Speaker Asylum, RE: Previous reviewer (0.00)
Posted by hahax@verizon.net on 2019-06-13, 20:19:43 (72.88.210.112)
I've seen a very few speakers in Hi Fi News that do measure flat. I'm always surprised, though, how few do. .......

308: High Efficiency Speaker Asylum, RE: Previous reviewer (0.00)
Posted by hahax@verizon.net on 2019-06-12, 20:20:34 (72.88.210.112)
Also Hi Fi News frequency plots rarely appear flat even for speakers you would expect essentially flat measurements. My guess is it has something to do with the way they take their measurements. So th .......

309: Digital Drive, Cambridge CXC CD Transport (0.00)
Posted by hahax@verizon.net on 2019-06-10, 20:32:51 (72.88.210.112)
I currently use an old Pioneer DVD player as a CD transport into Monarchy anti jitter boxes feeding a GeorgeMark Audio line stage with built in MSB DAC. I wonder if the Cambridge CXC transport would b .......

310: General Asylum, RE: Of course (0.00)
Posted by hahax@verizon.net on 2019-06-07, 20:18:33 (72.88.210.112)
highly damped systems have a little overhang. That means they are inaccurate, just less so than less well damped systems. My woofers were carefully designed to work both ported and highly stuffed. Stu .......

311: General Asylum, RE: Any speaker driven by an amplifier that (0.00)
Posted by hahax@verizon.net on 2019-06-07, 14:17:26 (72.88.210.112)
I needed some names. I think you over rate amplifier damping. For me many(maybe most) speakers are too mushy(under damped) in the mid bass. There aren't many I can live with. I'd add that when you thi .......

312: General Asylum, RE: tight bass= overdamped speaker punch but no definition nt (0.00)
Posted by hahax@verizon.net on 2019-06-07, 12:29:11 (72.88.210.112)
name me a speaker9S0 that is over damped by your definition .......

313: General Asylum, RE: "Tighter Bass" "Tight Bass" (0.00)
Posted by hahax@verizon.net on 2019-06-06, 20:45:07 (72.88.210.112)
All things being equal since room conditions and amplifier control can have significant affects it's bass with maximum definition, the ability to hear individual notes. Interestingly it usually sounds .......

314: Vintage Asylum, RE: Why on earth (0.00)
Posted by hahax@verizon.net on 2019-06-05, 20:31:04 (72.88.210.112)
I don't believe that the change in dispersion at high crossover frequencies was talked about and thus listened for at the time. This crossover was very high but in general crossovers were higher then. .......

315: Speaker Asylum, RE: Dunno .. (0.00)
Posted by hahax@verizon.net on 2019-06-02, 20:38:40 (72.88.210.112)
But ATC is a pro monitor producer and a significant one. They happen to also produce speakers for the home that are mainly 'prettier' versions of their pro speakers. .......

316: Speaker Asylum, RE: SCM50SE? (0.00)
Posted by hahax@verizon.net on 2019-06-01, 20:40:43 (72.88.210.112)
The last speaker Gordon Holt bought was an active ATC50 speaker. .......

317: General Asylum, RE: Building a Listening Room Robert Harley (0.00)
Posted by hahax@verizon.net on 2019-06-01, 20:35:03 (72.88.210.112)
you've made my point .......

318: General Asylum, RE: Building a Listening Room Robert Harley (0.00)
Posted by hahax@verizon.net on 2019-05-31, 20:25:57 (72.88.210.112)
? Everybody seems to be a negative critic. Why? It seems part of the human condition. Is it a way to disguise envy? .......

319: Speaker Asylum, RE: The "microphone" (0.00)
Posted by hahax@verizon.net on 2019-05-25, 19:35:58 (72.88.210.112)
I trust what I hear. I don't trust what I hear at a show unless it's excellent. If it's good the system has to be at least that good. If it's not good I don't know if it's the system, the set up, the .......

320: Speaker Asylum, RE: The "microphone" (0.00)
Posted by hahax@verizon.net on 2019-05-24, 20:32:16 (72.88.210.112)
so there's the 'fidelity' of the iphone and it's positioning, the quality of the environment and its set up added to the 'quality' of the computer system and its colored speakers. I don't trust the so .......

321: Tweakers' Asylum, RE: Isolation Options For Pre Amp. Looking For Suggestions (0.00)
Posted by hahax@verizon.net on 2019-05-24, 20:21:22 (72.88.210.112)
I recall Jim telling me he had a partner in the listening test for the zillions of materials tested. I assume you're the partner. I got the idea the process went on for a considerable amount of time. .......

322: Amp/Preamp Asylum, RE: They are similar, but also a bit different (0.00)
Posted by hahax@verizon.net on 2019-05-24, 20:16:56 (72.88.210.112)
Agreed, nice succinct explanation. .......

323: Amp/Preamp Asylum, RE: Devialet is actually an analog amp with a switch power supply (0.00)
Posted by hahax@verizon.net on 2019-05-24, 20:15:54 (72.88.210.112)
The Quad 405 was the 1st amp to do it although the current amp was class B instead of class D. .......

324: Tweakers' Asylum, RE: Isolation Options For Pre Amp. Looking For Suggestions (0.00)
Posted by hahax@verizon.net on 2019-05-23, 20:47:59 (72.88.210.112)
I belong to the New Jersey club and know Jim. They really are superb and Jim has done further tuning and made them even better, .......

325: Amp/Preamp Asylum, RE: Devialet is actually an analog amp with a switch power supply (0.00)
Posted by hahax@verizon.net on 2019-05-23, 20:43:58 (72.88.210.112)
It's a bit more complex than you describe. It is an analog amp of high voltage output but low current supply. A class D amp(which does not stand for digital although many think of it due to class D wh .......

326: Amp/Preamp Asylum, RE: Linear Tube Audio and microZOTL amps? (0.00)
Posted by hahax@verizon.net on 2019-05-23, 20:37:43 (72.88.210.112)
If the 40 watt rating was from the designer David Berning, it might well be conservative. That was true for his 1st amp, the Audionics BA150. It was rated at 150 watts which was sort of true if there .......

327: Tweakers' Asylum, RE: Isolation Options For Pre Amp. Looking For Suggestions (0.00)
Posted by hahax@verizon.net on 2019-05-22, 20:33:37 (72.88.210.112)
I use plastic devices called Pon-Tunes that look like horizontal cylinders with stabilizing forms under them. They make astounding differences in performance under any electronic device, are about 1 1 .......

328: Vinyl Asylum, RE: As if I need more proof of vinyl superiority over CD (0.00)
Posted by hahax@verizon.net on 2019-05-22, 20:24:33 (72.88.210.112)
what has to be ascertained is if there was different mastering done for the releases in which case it's apples versus oranges. I'm not saying you're wrong about CD versus digital, just that without fu .......

329: Digital Drive, RE: The DAC is the thing that gets all the bad data from the transport. Nt (0.00)
Posted by hahax@verizon.net on 2019-05-22, 20:19:26 (72.88.210.112)
actually it's been shown that the data is recovered accurately. The problems are with how the data is handled, the most obvious being jitter which is an analog problem. .......

330: Digital Drive, RE: Wanna buy a bridge? (0.00)
Posted by hahax@verizon.net on 2019-05-17, 20:37:19 (72.88.210.112)
Wrong and if you leave your system off for a week or two it takes at least a few hours to recover. Even a day off may take up to an hour. Focus improves. Dimensionality improves. Dynamics are better. .......

331: Speaker Asylum, RE: Crossover Design Service? (0.00)
Posted by hahax@verizon.net on 2019-05-15, 20:36:42 (72.88.210.112)
I don't think Troels will do it. Even on his own designs he states if you modify them you need to change the crossover and then you're on your own. .......

332: Amp/Preamp Asylum, RE: 'musicality' is a marketing term and pretty much meaningless. (0.00)
Posted by hahax@verizon.net on 2019-05-11, 20:31:11 (72.88.210.112)
Agree. But the term may be meaningful on an individual basis which, of course, makes it irrelevant on a broader context. .......

333: Critic's Corner, RE: And moreover (0.00)
Posted by hahax@verizon.net on 2019-05-02, 14:42:05 (72.88.210.112)
I haven't heard them. Have you? Please name a few. And hundreds less? There aren't many speakers that are only thousands less. .......

334: Cable Asylum, RE: Different Cables for Different Frequency Ranges? (0.00)
Posted by hahax@verizon.net on 2019-04-30, 20:45:04 (72.88.210.112)
I have a friend who designed speakers. He preferred to use drivers from the same manufacturer for lows, mids and highs because they had the same 'color' which meant you didn't hear differences as much .......

335: Critic's Corner, RE: Yes, but why did they have to chose _that_ form? Not to mention a name out of the comics? (nt) (0.00)
Posted by hahax@verizon.net on 2019-04-30, 20:39:14 (72.88.210.112)
The form is absolutely logical given what David Wilson wanted the WAMM to do. You're complaining about the makeup and obviously David liked what he chose and you don't. But it's his product. ::: TOPIC .......

336: Critic's Corner, RE: I thought about the Wilson Audio WAMM Master Chronosonic ... (0.00)
Posted by hahax@verizon.net on 2019-04-29, 20:29:14 (72.88.210.112)
Eye of the beholder. I differentiate between pretty and beautiful. Pretty is taste and is mainly an individual choice. Beauty is function and logic and may or may not be pretty and is not just one per .......

337: Speaker Asylum, RE: Why do these speakers sound as good as they do? (0.00)
Posted by hahax@verizon.net on 2019-04-25, 17:49:11 (72.88.210.112)
I can see at a glance why they could be mistaken for a transmission line but it looks like the front of the woofers fed a (long)port and don't exit to the outside. If I se correctly the loading looks .......

338: Amp/Preamp Asylum, RE: Inherited amp (0.00)
Posted by hahax@verizon.net on 2019-04-20, 20:36:43 (72.88.210.112)
it looks like a really impressive amp with lots of power(6 output) tubes. and 2 amps looks right to me since it sure looks like monoblocks. just agues. is there axis to the builders computers. I'd loo .......

339: Vinyl Asylum, RE: I installed a Shure V15 Type V on a friend's RB300. No problems, sounds good. nt (0.00)
Posted by hahax@verizon.net on 2019-04-19, 20:45:14 (72.88.210.112)
The Shure works on a wide range of arms if you use the damping brush which reduces the affect of resonance at a bad frequency. And it's a good cartridge used properly with octave to octave balance mor .......

340: Critic's Corner, RE: And now for a dose of reality: Editor's choice awards loudspeakers )$100k (0.00)
Posted by hahax@verizon.net on 2019-04-19, 20:41:06 (72.88.210.112)
It's part of the game of publishing audio, cars, etc. How about listing the over $100,000 set of cables for a complex system, starting with say tri-wiring a super speaker with 3 sets of $60,000 speake .......

341: Digital Drive, RE: Giving up on spinning disks? (0.00)
Posted by hahax@verizon.net on 2019-04-19, 20:33:38 (72.88.210.112)
Nope. I like to touch things for real. So I still spin both LPs and CDs. I have so damn many of both. .......

342: High Efficiency Speaker Asylum, RE: would 12mm Baltic birch be sufficient for an 0.83 scale La Scala driven hard? (0.00)
Posted by hahax@verizon.net on 2019-04-17, 09:30:39 (72.88.210.112)
I recall that in the 60s, John Crabbe, then the editor of Hi Fi News designed horn bass units to build into the corners of a room in his home. They were almost straight and built from concrete because .......

343: General Asylum, RE: Stop watching .. not worth the Electricity wasted garbage films ?) (0.00)
Posted by hahax@verizon.net on 2019-04-16, 18:53:49 (72.88.210.112)
Sayeth he on high. next time I'll check with you first before watching anything. .......

344: General Asylum, Movie Trivia - Equalizer II (0.00)
Posted by hahax@verizon.net on 2019-04-16, 16:52:34 (72.88.210.112)
In the film Equalizer II the old Jewish gentleman in an old age home that McCall drives around as a Lyft driver played by Orson Bean has a stereo system in his room made up of a medium size 70s Marant .......

345: Speaker Asylum, RE: New reissue JBL - L100 Classic Speakers ? (0.00)
Posted by hahax@verizon.net on 2019-04-16, 13:19:27 (72.88.210.112)
I don't think anyone has mentioned the factor that probably sold a ton of L100 speakers, the 3D colorful grills. Too often we 'listen' with our eyes, especially when the first view is so enticing. I s .......

346: Vinyl Asylum, RE: Best female vocal albums (0.00)
Posted by hahax@verizon.net on 2019-04-15, 21:20:02 (72.88.210.112)
Bonnie Koloc 'Bonnie Koloc' both gentle and powerful voice that can soar in a second Bonnie Koloc 'After All This Time' Joan Baez 'Joan Baez' the voice of an angel JoAnne Kelley 'JoAnne Kelley' aweso .......

347: Speaker Asylum, RE: Ultra Signature Clever Little Clocks made my Bose 901's sound much better!. (0.00)
Posted by hahax@verizon.net on 2019-04-13, 20:29:19 (72.88.210.112)
This tale is late. Professor Lirpa always publishes on the 1st of April. .......

348: High Efficiency Speaker Asylum, RE: would 12mm Baltic birch be sufficient for an 0.83 scale La Scala driven hard? (0.00)
Posted by hahax@verizon.net on 2019-04-13, 20:26:39 (72.88.210.112)
I suspect that Percy, while he didn't name any speaker, was referring to the Klipschhorn. And given his background in horn design, some of his ideas were probably correct. And I'm also betting that he .......

349: High Efficiency Speaker Asylum, RE: would 12mm Baltic birch be sufficient for an 0.83 scale La Scala driven hard? (0.00)
Posted by hahax@verizon.net on 2019-04-12, 21:10:26 (72.88.210.112)
I once met Percy Wilson(decades ag) who was the Gramaphone technical editor for decades) and I recall he said there were two things you shouldn't do with bass horns(obviously for maximum performance). .......

350: Speaker Asylum, RE: Bose has high: ±3 dB from just under 40 Hz to 20 kHz (0.00)
Posted by hahax@verizon.net on 2019-04-08, 21:30:46 (72.88.210.112)
The problem ultimately was that though Amar Bose's idea that most of the sound heard in a live environment probably was basically true, his implementation of the idea didn't work and couldn't work. It .......

351: Critic's Corner, RE: I'd probably say Bach, too (0.00)
Posted by hahax@verizon.net on 2019-04-08, 21:20:56 (72.88.210.112)
Decades ago I recall a good friend at the University of Pennsylvania telling me that when he felt low he'd go to the music department, put on a set of head phones and listen to Bach because Bach was t .......

352: General Asylum, RE: Well............................................. (0.00)
Posted by hahax@verizon.net on 2019-04-02, 20:27:11 (72.88.210.112)
And, of course, the 1st beryllium mid range was the large dome on the Yamaha 1000 speakers from decades ago. it was crossed around 500 Hz. .......

353: Speaker Asylum, RE: ATC Midrange Driver Repair Update - ProAc Studio 3 update (0.00)
Posted by hahax@verizon.net on 2019-04-01, 20:51:46 (72.88.210.112)
If you like the Proacs all the speakers you mention will be very different from them. And if you have ATC repair the dome mids, they would be very different and Proac would at best be able to guess at .......

354: Planar Speaker Asylum, RE: Price for Sawafuji Drivers? (0.00)
Posted by hahax@verizon.net on 2019-04-01, 20:44:06 (72.88.210.112)
there are multiple voice coils. The former is linear running almost the full length of the driver. .......

355: Planar Speaker Asylum, RE: Price for Sawafuji Drivers? (0.00)
Posted by hahax@verizon.net on 2019-03-31, 05:18:00 (72.88.210.112)
Just for history Pipe Dreams speakers wanted to use the Maggie ribbon on the top end from about 6kHz on up. The designers considered it the best tweeter they knew of. But, of course and understandably .......

356: Planar Speaker Asylum, RE: Price for Sawafuji Drivers? (0.00)
Posted by hahax@verizon.net on 2019-03-30, 18:49:15 (72.88.210.112)
it's motion is more linear. Since it's a variation on a regular voice coil the gap can be small unlike a planar where the gap has to be big enough for the diaphragm to move. Large gap reduces magnetic .......

357: Speaker Asylum, RE: DIY subwoofer question.....for the amp (0.00)
Posted by hahax@verizon.net on 2019-03-29, 11:59:25 (72.88.210.112)
Given my experiences with the affects of vibration on any electronic gear I would separate it as much as possible from vibrations. I use a passive 3 way crossover and it's in a separate box. As an exa .......

358: Planar Speaker Asylum, RE: Price for Sawafuji Drivers? (0.00)
Posted by hahax@verizon.net on 2019-03-29, 05:45:00 (72.88.210.112)
Infinity made planars, voice coil glued on the diaphragm. The Sawafuji actually has multiple voice coil formers behind the diaphragm. Think of taking a voice coil, cutting it and straightening it out. .......

359: Planar Speaker Asylum, RE: Price for Sawafuji Drivers? (0.00)
Posted by hahax@verizon.net on 2019-03-28, 20:33:26 (72.88.210.112)
Thanks, that helps. They are worth more than I thought. And I know they haven't been made for years. By the way the ad doesn't know a thing about them. They are mid ranges and go quite low and not hig .......

360: Speaker Asylum, RE: DIY subwoofer question.....for the amp (0.00)
Posted by hahax@verizon.net on 2019-03-28, 20:29:29 (72.88.210.112)
Mounting the amps separate from the subs would be best. Microphonics have a big affect on the performance of all electronics. .......

361: Planar Speaker Asylum, Price for Sawafuji Drivers? (0.00)
Posted by hahax@verizon.net on 2019-03-28, 11:58:38 (72.88.210.112)
Is any one familiar with thee Sawafuji flat drivers from about 20 years ago? They are square, a couple of inches in size, clear corrugated flat panels with multiple linear voice coils in the back. Any .......

362: Speaker Asylum, RE: Almost Positive (0.00)
Posted by hahax@verizon.net on 2019-03-21, 20:32:27 (72.88.210.112)
For what it's worth they do not use ferrofluid. .......

363: Radio Road, RE: should've tried a Sherwood ;) (0.00)
Posted by hahax@verizon.net on 2019-03-21, 20:30:50 (72.88.210.112)
I recall the Sherwood tuner reviews and you are correct, the reviews were always excellent. .......

364: Radio Road, RE: MR67 here (nt) (0.00)
Posted by hahax@verizon.net on 2019-03-20, 21:10:41 (72.88.210.112)
Fifty years ago I chose a Scott tuner over an MR67 to save money. Big mistake. The Scott was very good but not a McIntosh MR67. .......

365: Vinyl Asylum, RE: Michael Fremer interviewed (0.00)
Posted by hahax@verizon.net on 2019-03-20, 21:07:11 (72.88.210.112)
I've heard Michael Fremer speak a few times and found an open and entertaining speaker. .......

366: Speaker Asylum, RE: Almost Positive (0.00)
Posted by hahax@verizon.net on 2019-03-20, 11:44:15 (72.88.210.112)
I'm sure but was too lazy to look it up and double check to be positive. After years of looking at ATC drivers though I never recall the words ferro fluid. They are very impressive drivers, though ::: .......

367: Speaker Asylum, RE: Midrange distortion (0.00)
Posted by hahax@verizon.net on 2019-03-20, 09:21:03 (72.88.210.112)
I'm almost positive ATC doesn't use ferro fluid in their drivers. .......

368: Speaker Asylum, RE: Midrange distortion (0.00)
Posted by hahax@verizon.net on 2019-03-19, 21:04:05 (72.88.210.112)
Shipping whole speakers sounds expensive. The ATC dome is heavy and won't be cheap to send. Perhaps they don't want you to open the box since I believe the mid dome is mounted from the inside. And why .......

369: Vinyl Asylum, RE: Cancer update (0.00)
Posted by hahax@verizon.net on 2019-03-19, 20:57:46 (72.88.210.112)
Thanks, a good story like this is always uplifting. May the good news continue forever. .......

370: Speaker Asylum, RE: Naim Allae bass design (0.00)
Posted by hahax@verizon.net on 2019-03-14, 19:52:21 (72.88.210.112)
I suspect this design was done by experimentation. I've never seen anything written on it. The old Dynaco A35(and A50) did it with a stuffed port in a divider for a single closed box. But it didn't ge .......

371: Tubes Asylum, RE: Does Longevity Mean More than Sound Quality (0.00)
Posted by hahax@verizon.net on 2019-03-13, 21:08:35 (72.88.210.112)
Ideally you want both and it is possible with good design. David berning conservatively rates his output tubes for 10,000 hours and his amps are highly respected. I know from a friend that the prototy .......

372: General Asylum, RE: Bobby Palkovich died tragically (0.00)
Posted by hahax@verizon.net on 2019-03-12, 20:37:11 (72.88.210.112)
He was a really good guy. I knew him slightly. By the way he did design a few other speakers under the Merlin label before the two he concentrated on perfecting over many years. And I bet he designed .......

373: Planar Speaker Asylum, RE: Why no coaxial or co-xxx multiway planar? (0.00)
Posted by hahax@verizon.net on 2019-03-11, 20:37:49 (72.88.210.112)
Piega makes a planar coax mid with a tweeter in the middle. .......

374: General Asylum, RE: Vote for best named audio product (0.00)
Posted by hahax@verizon.net on 2019-03-11, 20:34:54 (72.88.210.112)
I'd give a vote for Krell. .......

375: General Asylum, RE: Merlin? (0.00)
Posted by hahax@verizon.net on 2019-03-11, 20:34:00 (72.88.210.112)
Merlin brings back some sad memories. .......

376: Critic's Corner, RE: Leaks (0.00)
Posted by hahax@verizon.net on 2019-03-11, 20:33:00 (72.88.210.112)
You have to be careful with inexpensive cables from any large supplier. If a friend you trust says try them the wires he has are probably what he says they are. But large retailers buy large amounts a .......

377: Tweakers' Asylum, RE: Hmmm (0.00)
Posted by hahax@verizon.net on 2019-03-08, 21:45:18 (72.88.210.112)
I trusted my friend who had great experience in audio in what he said was going on. Most importantly the two of us new to the affect got the change right away. .......

378: Tweakers' Asylum, RE: Does static really build up on our CDs as they spin? (0.00)
Posted by hahax@verizon.net on 2019-03-07, 20:59:40 (72.88.210.112)
I heard the obvious affect of static within seconds so it's not build up. Some of the fluids work but I've been told they don't always last through a complete play of some CDs. .......

379: Critic's Corner, RE: "Stereophile never targeted the DIY crowd" (0.00)
Posted by hahax@verizon.net on 2019-03-06, 20:31:07 (72.88.210.112)
Actually they did do a DIY issue once in the 60s after one of their long interludes between issues. It was an article on how to build a super version of the Dynaco Stereo 70 that used the circuit and .......

380: Tweakers' Asylum, RE: Does static really build up on our CDs as they spin? (0.00)
Posted by hahax@verizon.net on 2019-03-03, 20:35:09 (72.88.210.112)
Yes, I've heard it demonstrated and it's obvious. A friend developed a cheap fix for it and no CD producers gave a damn. .......

381: Critic's Corner, RE: Passing the torch from one pale old white guy to another... (0.00)
Posted by hahax@verizon.net on 2019-03-03, 20:29:27 (72.88.210.112)
No it should be what each individual wants it to be. That can be the music, the technology or a combination of the two. Please don't tell me what it should be for me. By the way I am old but hair isn' .......

382: Critic's Corner, RE: A new "JA" at the helm of Stereophile (0.00)
Posted by hahax@verizon.net on 2019-03-02, 21:23:38 (72.88.210.112)
I will miss him. I've always admired his approach to the magazine. Now it's wait and see what happens with an open viewpoint. And let's give the new JA at least a couple of issues before running to ju .......

383: Critic's Corner, RE: Dunno why you think Art would foist his preferences on S'phile reviewers. (0.00)
Posted by hahax@verizon.net on 2019-03-02, 21:20:21 (72.88.210.112)
I agree with you. I recall Listener magazine and Art's preferences were obvious. But he never dumped on different approaches. I always felt I was reading a very fair person who analyzed every product .......

384: Speaker Asylum, RE: Almost reminds me of one of your own... (0.00)
Posted by hahax@verizon.net on 2019-03-01, 10:11:47 (72.88.210.112)
A passive radiator is basically a port. .......

385: Vintage Asylum, RE: Recommended turntable for a Fidelity Research FR-24 (0.00)
Posted by hahax@verizon.net on 2019-02-28, 21:05:52 (72.88.210.112)
I had no problems with FR64fx on a VPI HW-19 table with spring suspension. It's almost 30 years old but still a really nice table especially in it's MK4 version. .......

386: General Asylum, RE: Bose - respond 'yes' if you respect them as a brand, and 'no' if you don't (0.00)
Posted by hahax@verizon.net on 2019-02-27, 20:34:45 (72.88.210.112)
You are absolutely correct. But they don't belong in an audio discussion. They belong in an appliance discussion. And I'm serious. I'm not being facetious. .......

387: Speaker Asylum, RE: Looking for a very specific tweeter (0.00)
Posted by hahax@verizon.net on 2019-02-25, 20:46:22 (72.88.210.112)
This makes no sense. Perhaps if you would explain what you are trying to accomplish, your needs would be clearer. .......

388: Speaker Asylum, RE: Yup (0.00)
Posted by hahax@verizon.net on 2019-02-21, 13:48:33 (72.88.210.112)
The AR3 mid dome was bigger than the AR3a mid dome but still crossed over almost an octave higher than the AR3. What was unusual about the AR3 dome was that the spider was in the magnet gap which made .......

389: Speaker Asylum, RE: Will you buy these speakers... (0.00)
Posted by hahax@verizon.net on 2019-02-18, 11:35:30 (72.88.210.112)
Domes have a tendency to rock as you describe. The only solution I've seen is by ATC who make their own mid range and tweeter domes that use double spiders to alleviate the rocking and, of course, the .......

390: Speaker Asylum, RE: Will you buy these speakers... (0.00)
Posted by hahax@verizon.net on 2019-02-17, 20:39:52 (72.88.210.112)
I suspect JGH was talking in room with room lift, the situation we actually live with. I had ATC speakers in my room that were down 6 dB at 68 Hz according to ATC but were up 8 dB in my room and were .......

391: Planar Speaker Asylum, RE: active biamp amplifier gain (0.00)
Posted by hahax@verizon.net on 2019-02-17, 20:32:45 (72.88.210.112)
Complex but if U have a sine wave signal at the crossover point, put it in the upper driver. Then reverse phase in the lower driver. Finally reverse phase in the driver that is in anti phase with the .......

392: Digital Drive, RE: Isn't there a difference between oversampling and upsampling? (0.00)
Posted by hahax@verizon.net on 2019-02-16, 16:39:10 (72.88.210.112)
I believe over sampling is reading the same material multiple times(4 times over sampling means each data point is read 4 times). Up sampling uses an algorithm to create extra data points in between t .......

393: Speaker Asylum, RE: Will you buy these speakers... (0.00)
Posted by hahax@verizon.net on 2019-02-16, 16:00:14 (72.88.210.112)
I might argue the KLH 6 and Advent have the deepest bass. But the Dynaco A25 has the best bass, the best bass definition. That was Gordon Holt's assessment in the Stereophile review. .......

394: Speaker Asylum, RE: Will you buy these speakers... (0.00)
Posted by hahax@verizon.net on 2019-02-16, 08:58:00 (72.88.210.112)
A couple of years ago I heard a set of large Advents. I was pleasantly surprised expecting them to bo 'older' sounding. Mahes one wonder what one could do by modernizing a set, say modern crossover pa .......

395: Digital Drive, RE: CD Upsampling Thoughts (0.00)
Posted by hahax@verizon.net on 2019-02-15, 20:34:04 (72.88.210.112)
Dull is a good word. It sort of summarizes what I heard upsampling versus red book smapling. Upsampling was ultimately duller. Thanks. .......

396: Digital Drive, CD Upsampling Thoughts (0.00)
Posted by hahax@verizon.net on 2019-02-15, 18:27:13 (72.88.210.112)
My DAC has triple oversampling for CD play. Since I only play red book CDs I haven't used the upsampling. But I finally tried it. And the result is a mixed bad. Upsampling is smoother, sweeter, a wide .......

397: High Efficiency Speaker Asylum, RE: Zu's 600 hour burn-in is the beginning of a long journey . . . (0.00)
Posted by hahax@verizon.net on 2019-02-12, 20:25:23 (72.88.210.112)
I'm not a ZU user but your comments don't make sense to me. The Zu speakers are supposed to be quite sensitive so why would you use not big, but huge(a kilowatt) amp? .......

398: Tweakers' Asylum, RE: Power Conditioners (0.00)
Posted by hahax@verizon.net on 2019-02-12, 20:19:08 (72.88.210.112)
A definition for amps and dynamics is basically simple. If an input signal is 1 volt and produces say 5 volts out, the amp is dynamic if 2 volts in gives 10 volts out. Anything very, very close is fai .......

399: Speaker Asylum, RE: I guess I'm definitely in a minority, but I didn't like them at all. (0.00)
Posted by hahax@verizon.net on 2019-02-10, 10:08:45 (72.88.210.112)
Playing at low levels can kill the sound especially if the system is not dynamic and compresses. Plus there is the Fletcher/Munson affect. At low levels our ears lose sensitivity at frequency extremes .......

400: Speaker Asylum, RE: I enjoyed KLH 9s for many years (0.00)
Posted by hahax@verizon.net on 2019-02-08, 20:24:15 (72.88.210.112)
If I remember correctly the ideal KLH 9/Futterman set up was double KLH 9s connected in series to raise the impedance of the speakers. The Futterman was the opposite of transistor amps. At audio loads .......

401: Speaker Asylum, RE: why no wave guide in BBC monitors? (0.00)
Posted by hahax@verizon.net on 2019-02-07, 17:07:16 (72.88.210.112)
Wave guide is relatively new. The last real BBC speakers(designed by the BBC) came out in the 1980s(LS5/8 & LS5/9) except for the LS5/12 which was designed by a then depleted BBC development departmen .......

402: Speaker Asylum, RE: Open frame stands? (0.00)
Posted by hahax@verizon.net on 2019-02-07, 11:07:12 (72.88.210.112)
The first time I heard the term beard was from David Wilson before the Puppy subs. David said the beard helped to reinforce the bass when the WATT was placed on the Wilson stand. Anything that helped .......

403: Amp/Preamp Asylum, RE: Possibly time to revisit speaker choices? (0.00)
Posted by hahax@verizon.net on 2019-02-03, 20:27:32 (72.88.210.112)
Speakers sound very different manufacturer to manufacturer. And none are perfect with different pluses and minuses. Your solution is fine for Tannoy users but what if the user prefers other compromise .......

404: Speaker Asylum, RE: John (0.00)
Posted by hahax@verizon.net on 2019-02-01, 20:49:03 (72.88.210.112)
He was an early importer of a lot of British gear including Quad, SME, Decca, Celestion speakers, etc. And I recall some American gear such as the Acoustic Research AR 1W woofer plus Janszen electrost .......

405: Speaker Asylum, RE: So I reversed the polarity from amp to speakers (0.00)
Posted by hahax@verizon.net on 2019-02-01, 20:42:42 (72.88.210.112)
And with multi track recording some recordings mix polarities and if it matters to you you have to choose polarity that simply sounds best. .......

406: Amp/Preamp Asylum, RE: Anyone experience getting over the power hump ? (0.00)
Posted by hahax@verizon.net on 2019-02-01, 20:36:07 (72.88.210.112)
Amps are rated into resistors with nice constant ratings and nice phase characteristics in relationship to voltage and current. Speakers are reactive. Voltage and current are often out of phase. Watts .......

407: Speaker Asylum, RE: Who's John (0.00)
Posted by hahax@verizon.net on 2019-01-30, 14:02:59 (72.88.210.112)
John Wright designed both lines. But with the TDL speakers I believe he had input into the driver designs since they were made by the company that owned TDL. By the way the oval TDL woofer used the sa .......

408: Speaker Asylum, RE: Outboard Active vs Inboard Pasive xovers - preference? (0.00)
Posted by hahax@verizon.net on 2019-01-30, 13:54:12 (72.88.210.112)
normally the simplest crossovers are 1st order which are almost never used because modern drivers are not flat. The main exception was Thiel which ended up with a terribly complex crossover even thoug .......

409: Speaker Asylum, RE: Outboard Active vs Inboard Pasive xovers - preference? (0.00)
Posted by hahax@verizon.net on 2019-01-29, 20:31:15 (72.88.210.112)
You don't think that the reactive load of a passive crossover isn't more prone to sonic affects than the low level circuits of an active crossover? By the way I do use a passive 80 Hz crossover to 18" .......

410: Speaker Asylum, RE: May not be relevant but... (0.00)
Posted by hahax@verizon.net on 2019-01-29, 07:08:21 (72.88.210.112)
Good advice but doesn't have to do with bass response. And by the way HP learned it from the late George Bischoff of Melos, Pipedreams etc. .......

411: Speaker Asylum, RE: Follow up the Fried RII thread below...re: tweeters (0.00)
Posted by hahax@verizon.net on 2019-01-28, 20:37:55 (72.88.210.112)
It appears Falcon Acoustics not only makes T27 replacements but also B110 and B139 replacements that could be used in Fried R speakers. .......

412: Speaker Asylum, RE: Very few speaker drivers, even today, are flawlessly flat throughout their pass-band, and so will need eq, (0.00)
Posted by hahax@verizon.net on 2019-01-28, 20:30:09 (72.88.210.112)
Neither passive or active crossover design is for the average DIYer. Given some of the results one could argue it isn't even such a simple job for some professionals. But anything a good passive cross .......

413: Speaker Asylum, RE: Outboard Active vs Inboard Pasive xovers - preference? (0.00)
Posted by hahax@verizon.net on 2019-01-27, 20:24:43 (72.88.210.112)
No question that a properly implemented active crossover is superior to a passive one. The amplifier load is way less reactive getting rid of the large passive crossover elements leaving only the reac .......

414: Speaker Asylum, RE: Fried Model RIIs (0.00)
Posted by hahax@verizon.net on 2019-01-27, 16:41:48 (72.88.210.112)
The R2 crossovers were designed by KEF for Bud. I know this was pre computer crossover design but changing crossovers has to be done by those who know what they're doing. There isn't a text book out t .......

415: Speaker Asylum, RE: Guess if you're voicing for classical (0.00)
Posted by hahax@verizon.net on 2019-01-27, 13:23:41 (72.88.210.112)
I'd expect the R2 to sound great on jazz too. My only point was that Bud didn't really like jazz and would only have voiced his speakers on classical music. By the way the greatest dynamic peaks are u .......

416: Speaker Asylum, RE: Center to match Kef 105's (0.00)
Posted by hahax@verizon.net on 2019-01-26, 21:27:49 (72.88.210.112)
I'd look at KEF speakers contemporary to the 105. Crazy guess and probably hard to find, the KEF 103, an under rated KEF 2 way speaker that can be used horizontally or vertically(there is a rotatable .......

417: Speaker Asylum, RE: Who's Irving? (0.00)
Posted by hahax@verizon.net on 2019-01-26, 21:22:51 (72.88.210.112)
Bud Fried didn't design the IMF speakers. John Wright designed them. I'm sure Bud had a lot of critical input though. Bud really became involved in the design of speakers with the Fried company, the f .......

418: Speaker Asylum, RE: I have a set of those. (0.00)
Posted by hahax@verizon.net on 2019-01-26, 18:35:06 (72.88.210.112)
Actually Bud wasn't too hot for jazz or rock. There was only classical music of which opera was the greatest, of which Wagner and the Ring operas were the ultimate. He didn't really like folk either .......

419: Speaker Asylum, RE: Without researching, I think 2/3 of the drivers are the same as the Rogers LS 3/5A. nt (0.00)
Posted by hahax@verizon.net on 2019-01-26, 18:32:34 (72.88.210.112)
The R didn't use series crossover. That came afew years later in Fried speakers. .......

420: Speaker Asylum, RE: Who's Irving? (0.00)
Posted by hahax@verizon.net on 2019-01-26, 18:31:19 (72.88.210.112)
The MK4 is an IMF Electronics speaker, which has nothing to do with Bud. They split with Bud and were allowed to use IMF in their name. The Model R was the 1st Fried speaker. It was a slightly modded .......

421: Tubes Asylum, RE: A simple, curious, ignorant amp question (0.00)
Posted by hahax@verizon.net on 2019-01-23, 20:24:08 (72.88.210.112)
A low efficiency speaker say 85 dB only needs 1 watt to play at that level, a very loud one for an average. But that assumes the speaker load isn't awful so the amp can put its rated output(done into .......

422: Speaker Asylum, RE: Does anyone make a good looking + great sounding active speaker? (0.00)
Posted by hahax@verizon.net on 2019-01-22, 09:41:00 (72.88.210.112)
Not great looking but a normal looking speaker powered speaker and more costly than the ones here, the ATC SCM20ASL. I haven't heard it but I lived with a passive version for over a month and it's a s .......

423: Speaker Asylum, RE: entronic mark IV bookshelf speakers (0.00)
Posted by hahax@verizon.net on 2019-01-12, 20:47:05 (72.88.210.112)
You're correct but the point I was making is still true. Small box is reduced bass band width and/or low sensitivity(they need more power to play at a given level compared to larger speakers all thing .......

424: Amp/Preamp Asylum, RE: Aunt Corey's Pre-amp... (0.00)
Posted by hahax@verizon.net on 2019-01-12, 20:39:30 (72.88.210.112)
A true passive(no active buffering) is an iffy thing depending on the electrical characteristics of the amp, the passive and the interconnects. If it works(and you don't need the gain of a true active .......

425: Rocky Road, RE: Favorite cover tunes ... (0.00)
Posted by hahax@verizon.net on 2019-01-12, 20:32:52 (72.88.210.112)
Judy Collins, Who knows where The Time Goes(Sandy Denny) Priscilla Herdman, And The Band Played Waltzing Matilda(Eric Bogle) Jim and Jean, The Crucifixion(Phil Ochs) .......

426: Vinyl Asylum, RE: Audio Technica AT ART1000 vs ZYX Ultimate Dynamic (0.00)
Posted by hahax@verizon.net on 2019-01-11, 20:26:34 (72.88.210.112)
You can say the same thing about any luxury item but if you can afford it, why not? I'd love a Ferrari. I'd love to try a 100 point red wine with a great meal and would if I had the money. ::: TOPIC:: .......

427: Speaker Asylum, RE: entronic mark IV bookshelf speakers (0.00)
Posted by hahax@verizon.net on 2019-01-10, 20:37:55 (72.88.210.112)
The seller doesn't know what he's talking about. Small box equals lower efficiency not higher, the reverse of his logic. Small box and closed box, especially if it's true acoustic suspension(all close .......

428: General Asylum, RE: Soundbar for (Sony 900F) tv, and for casual music listening (0.00)
Posted by hahax@verizon.net on 2019-01-09, 20:40:34 (72.88.210.112)
I've been very happy with a ZVOX sound BOX used with an 800 series Sony TV. The box is not a bar but a low box over a foot deep so it contains real woofers. The TV actually sits on top of the box. The .......

429: Speaker Asylum, RE: I wonder what the WAF factor is with these... (0.00)
Posted by hahax@verizon.net on 2019-01-08, 21:03:06 (72.88.210.112)
A lot of ugly comments. If the owner is happy and not looking for assistance what does it matter? .......

430: Critic's Corner, RE: Credibility lost here... (0.00)
Posted by hahax@verizon.net on 2019-01-06, 20:44:53 (72.88.210.112)
the Einstein statement was the best solution is the simplest one that WORKS. Simplicity alone is a specious argument. .......

431: Critic's Corner, RE: Single blind testing, is this a viable option? (0.00)
Posted by hahax@verizon.net on 2019-01-06, 20:40:37 (72.88.210.112)
Why make it an option. Listen single blind, double blind and also eyes open just listening to the sound. The best situation is when all 3 kind of agree. And the ultimate best result, no matter the tes .......

432: High Efficiency Speaker Asylum, RE: What did G.A. Briggs accomplish (or try to accomplish) with his "acoustic filter" Double Bass Reflex cabinets ? (0.00)
Posted by hahax@verizon.net on 2019-01-05, 20:35:22 (72.88.210.112)
While it's not like the damped hole between the two volumes in the old Dynaco A35(which had a small resistive slot in a panel separating a closed box into two partitions. I suspect the Brigg's acousti .......

433: High Efficiency Speaker Asylum, RE: folded horn (0.00)
Posted by hahax@verizon.net on 2019-01-04, 20:41:50 (72.88.210.112)
As per wood I might add that decades ago John Crabbe, the editor of Hi Fi News built concrete bass horns (with about 6 feet square mouths) into his home to damp the bass resonances of the horns. And e .......

434: Vinyl Asylum, RE: Best moving magnet cartridge to use with (0.00)
Posted by hahax@verizon.net on 2019-01-04, 20:34:29 (72.88.210.112)
Never had a chance to compare the 2 styli but I always worried about the JICO only because a lot of the engineering in the Technics that made it special was in the magnet/stylus assembly. It pisses me .......

435: Vinyl Asylum, RE: Best moving magnet cartridge to use with (0.00)
Posted by hahax@verizon.net on 2019-01-04, 14:20:24 (72.88.210.112)
But it's not the same as the original. Who knows which one is better. And out of necessity I use a JICO. Sadly there is no replacement for the EPC 100 MK4, an even better MM Tecnics. .......

436: High Efficiency Speaker Asylum, RE: folded horn (0.00)
Posted by hahax@verizon.net on 2019-01-03, 16:05:13 (72.88.210.112)
Percy didn't mean it wouldn't work, only that wood and folding lead to performance compromises. Wood is too resonant(as it often is for any speaker) and folding develops small resonances in the bass r .......

437: High Efficiency Speaker Asylum, RE: folded horn (0.00)
Posted by hahax@verizon.net on 2019-01-02, 20:54:48 (72.88.210.112)
No reasonably sized horn, folded or not would go low enough to be a subwoofer without equalization which would defeat the use of a complex horn. You'd need a horn of well over 10 feet in length and a .......

438: Vinyl Asylum, RE: Best moving magnet cartridge to use with (0.00)
Posted by hahax@verizon.net on 2019-01-02, 20:46:41 (72.88.210.112)
If you can find a standard mount(not the integrated head shell version) of the Technic EPC205 MK2 MM grab it. It was a great cartridge decades ago and if you believe some of the latest issues of HI FI .......

439: Tube DIY Asylum, RE: The single-ended nature of air !!! (0.00)
Posted by hahax@verizon.net on 2018-12-30, 07:01:21 (72.88.210.112)
But then it's not class A nor is it a hi fi device if it's turned off for part of the cycle. Is it class C? .......

440: Tube DIY Asylum, RE: The single-ended nature of air !!! (0.00)
Posted by hahax@verizon.net on 2018-12-29, 20:50:18 (72.88.210.112)
First let me say Nelson Pass is a hero as far as I'm concerned. Second I don't doubt that air is asymmetric as Nelson claims. But while single ended amps are similarly asymmetric is not necessarily an .......

441: Digital Drive, RE: Thoghts on Jitter box/reclockers for "classic" (15yo) gear (0.00)
Posted by hahax@verizon.net on 2018-12-27, 20:54:39 (72.88.210.112)
I use two monarch DIPs in series between a DVD player used only as a CD drive and they do seem to produce smoother sound with noticeable but reduced improvement from the second unit. My DVD and DAC(MS .......

442: Speaker Asylum, RE: DIY gives satisfaction AND cost saving. (0.00)
Posted by hahax@verizon.net on 2018-12-25, 20:35:27 (72.88.210.112)
The Bernstein Shostakovich was one of the 1st classical recordings I ever bought and it's still one of my favorites. .......

443: Amp/Preamp Asylum, RE: Which do you prefer - low distortion or some coloration? (0.00)
Posted by hahax@verizon.net on 2018-12-24, 20:33:11 (72.88.210.112)
I recall a David Berning amp with variable negative feedback. As the feedback was lowered, the distortion(coloration) went up but the sound became more realistic. If what I heard was accurate and I be .......

444: Tweakers' Asylum, RE: VPI Magic Bricks (0.00)
Posted by hahax@verizon.net on 2018-12-18, 20:35:16 (72.88.210.112)
I still have 2 of them, wrote a short review for Stereophile in the early 80s. .......

445: Vinyl Asylum, RE: What's the best cartridge you're NOT using....? (0.00)
Posted by hahax@verizon.net on 2018-12-18, 20:33:26 (72.88.210.112)
A Decca 4RC. The old Deccas were awesomely dynamic which I value highly in audio reproduction. A close second in another sonic direction is a Technics EPC 205C Mk3. I'm currently using a Technics EPC .......

446: Critic's Corner, RE: Objectivity and the Abstract Truth (0.00)
Posted by hahax@verizon.net on 2018-12-14, 20:28:31 (72.88.210.112)
I second you on both statements. You can listen to a black box and enjoy it if it works. But measurements are useful in developing product and advancing the state of the art. And some are even very di .......

447: Speaker Asylum, Underhung Voice Coils (0.00)
Posted by hahax@verizon.net on 2018-12-12, 20:27:56 (72.88.210.112)
Underhung voice coils(coil shorter than magnetic gap) in drivers are supposed to be more linear than the conventional over hung coils(coil longer than the gap). But they seem to be extremely rare( exc .......

448: Speaker Asylum, RE: The Senator is a sealed box with 90 dB sensitivity (0.00)
Posted by hahax@verizon.net on 2018-12-06, 21:04:01 (72.88.210.112)
And if I recall Duntech used a bass Q of 0.5 which means anechoicaly the bass will be 6 dB down at resonance and still about 3 dB down at around 1.5 times resonance. Fortunately room lift means things .......

449: Vinyl Asylum, RE: Beth Hart !? (0.00)
Posted by hahax@verizon.net on 2018-11-27, 20:45:40 (72.88.210.112)
Love Beth Hart, especially the live recordings but Beth and Linda are apples and oranges, both excellent in different flavors. .......

450: Amp/Preamp Asylum, RE: That's an oxymoron (0.00)
Posted by hahax@verizon.net on 2018-11-18, 20:52:20 (72.88.210.112)
well you go ask them what's going on. both of them created some excellent creative amps. So without further info I'll take their word for it. .......

451: Amp/Preamp Asylum, RE: The reviewer... (0.00)
Posted by hahax@verizon.net on 2018-11-17, 14:12:45 (72.88.210.112)
At CES in 1979 David Berning and Murray Zeligman demonstrated David's Audionics BA150 amp for me. The amp had variable negative feedback from 16 dB down to 0. As the feedback was reduced the harmonic .......

452: Vinyl Asylum, RE: You could argue MM and MC all day, into tomorrow. (0.00)
Posted by hahax@verizon.net on 2018-11-16, 20:48:58 (72.88.210.112)
In many ways it's like comparing the big 3 Formula 1 cars to the other 7 and expecting a fair comparison. Until the same amount of MONEY and effort is put into MM design there's no way to make a reali .......

453: Amp/Preamp Asylum, RE: Stereophile: An obviously flawed review, or did I miss something ? (0.00)
Posted by hahax@verizon.net on 2018-11-16, 20:41:57 (72.88.210.112)
Fascinating, all of you find the magazine totally worthless along with its writers and you obviously all keep reading it year after year. I often disagree with much of what I read in may audio mags(a .......

454: Cable Asylum, RE: Gold?... (0.00)
Posted by hahax@verizon.net on 2018-11-14, 09:54:36 (72.88.210.112)
Bob believed that there was a length of both inter connects and speaker cables where there was a minimal amount of a 'resonance' in cables. He said he found the length from observing the affects of a .......

455: Cable Asylum, RE: There is a dude.... (0.00)
Posted by hahax@verizon.net on 2018-11-13, 07:16:49 (72.88.210.112)
Unfortunately there is no simple answer. Audio is trade offs and wires may be the worst of the bunch since they seem to be the least understood technically forcing us to try different variations. Your .......

456: Vinyl Asylum, RE: VTA question. (0.00)
Posted by hahax@verizon.net on 2018-11-12, 20:52:02 (72.88.210.112)
Yes, there is always variation from specs and also from cartridge to cartridge of the same model. Plus VTA is very sensitive so it must be set very finely to get the best sound. .......

457: Cable Asylum, RE: There is a dude.... (0.00)
Posted by hahax@verizon.net on 2018-11-12, 20:48:12 (72.88.210.112)
Gauge can matter but so does capacitance and inductance and gauge alone can't define this. And while I've seen gauge matters it's really resistance which is gauge in combination with length. And all t .......

458: Speaker Asylum, RE: Magico S1.5 (0.00)
Posted by hahax@verizon.net on 2018-11-04, 20:37:20 (72.88.210.112)
No and it won't until if and when it's updated to MK2 status. .......

459: Tubes Asylum, RE: GL KT88 (nt) (0.00)
Posted by hahax@verizon.net on 2018-10-31, 20:47:24 (72.88.210.112)
Agreed KT88. I've been told by a successful manufacturer of tube gear that he won't use either KT120s or KT150s as they are simply not linear enough compared to a KT88. .......

460: Radio Road, RE: A rep from UPS.... (0.00)
Posted by hahax@verizon.net on 2018-10-26, 20:47:32 (72.88.210.112)
I recall that in the 80s the Pink Triangle turntable boxes had 'useless if dropped' printed on them. I don't think many were ruined so the boxes had to be good. A UPS driver who hung at the same stere .......

461: Speaker Asylum, RE: should I "vertical biamp"? (0.00)
Posted by hahax@verizon.net on 2018-10-22, 20:37:26 (72.88.210.112)
The idea of biamping with solid state on the bottom with better damping and more power and tubes on the top seems logical at first. But be careful. If the sonic signature of the two amps is very diffe .......

462: General Asylum, RE: What about the load? (0.00)
Posted by hahax@verizon.net on 2018-10-21, 21:16:11 (72.88.210.112)
A tube amp has the same output basically into all loads(this is a simplification to a degree). But a solid state amp varies with load impedance. For instance a good 25 watt solid state amp is normally .......

463: General Asylum, RE: Musical? (0.00)
Posted by hahax@verizon.net on 2018-10-18, 20:37:49 (72.88.210.112)
Thanks guys. I was hoping for something a bit more precise but really didn't expect it. But it helps to see lots of answers close together to see it's an individual opinion and doesn't belong in a per .......

464: General Asylum, Musical? (0.00)
Posted by hahax@verizon.net on 2018-10-16, 20:38:14 (72.88.210.112)
I often see the term, musical to help describe the sound of a system or component. It has always seemed an imprecise, undefined term to me. While I think I know what many mean by it, I'm only guessing .......

465: Critic's Corner, RE: Glimpsing Toscanini.... (0.00)
Posted by hahax@verizon.net on 2018-10-14, 21:11:06 (72.88.210.112)
I always recall the 1st time I heard a Toscanini recording that I got with a copy of BBC Music Magazine. It was stunning and so different from any other conductor I had ever heard I had to call a frie .......

466: High Efficiency Speaker Asylum, RE: IME 5th and 6th order reflex bass speakers have less overhang than unassisted boxes (0.00)
Posted by hahax@verizon.net on 2018-10-08, 21:31:14 (71.187.233.88)
All things being equal, the faster the roll off, the greater the overhang. Of course even a second order box can sound boomy if it is designed with a high Q, a famous example being the LS3/5A. I suppo .......

467: High Efficiency Speaker Asylum, RE: EQ boxes for 6th order reflex (are there any these days?) (0.00)
Posted by hahax@verizon.net on 2018-10-07, 20:39:22 (71.187.233.88)
I'm curious. Why 6th order? The higher the roll off order the worse the bass control and the overhang of bas tones. .......

468: Vinyl Asylum, RE: Question about demagging MM/MI carts (0.00)
Posted by hahax@verizon.net on 2018-10-02, 20:34:58 (71.187.233.88)
I don't know if it does any good but just removing the stylus assembly will not always work since some cartridges like the old ADC pickups used induced magnetism. The magnet is in the pickup body and .......

469: Speaker Asylum, RE: Bose 901: do not aim flat response (0.00)
Posted by hahax@verizon.net on 2018-10-01, 07:01:50 (71.187.233.88)
And your point is? .......

470: Vinyl Asylum, RE: Another one .... (0.00)
Posted by hahax@verizon.net on 2018-09-28, 18:13:23 (71.187.233.88)
The combination of Grace and Marty was magic. I loved the band after he left but there was something missing. .......

471: Speaker Asylum, RE: Some info for you.... (0.00)
Posted by hahax@verizon.net on 2018-09-20, 13:04:52 (71.187.233.88)
I googled phase shift bass loading and found a JSE blurb showing a transfer function(frequency curve) for it. Given what I've been taught by real speaker designers the graph worries me in it's bass tr .......

472: Speaker Asylum, RE: Remag ? (0.00)
Posted by hahax@verizon.net on 2018-09-18, 13:54:10 (71.187.233.88)
I recall hearing long ago in a John Dahlquist lecture that extreme cold can also weaken the magnet. Sorry I don't recall the numbers involved although I sort of recall single digits but I won't swear .......

473: Amp/Preamp Asylum, RE: Cambodian audio? (0.00)
Posted by hahax@verizon.net on 2018-09-11, 20:44:04 (71.187.233.88)
They are made in the USA. .......

474: General Asylum, RE: Siegfried Linkwitz (0.00)
Posted by hahax@verizon.net on 2018-09-11, 20:43:10 (71.187.233.88)
Another great loss. An audio man of the highest echelon. This was one of the real innovators. His speakers were special. His research into speaker dispersion was important. And his development of the .......

475: Speaker Asylum, RE: Acoustic suspension design speakers.... (0.00)
Posted by hahax@verizon.net on 2018-09-08, 13:34:16 (71.187.233.88)
Good chance you are correct. The NHT designer was a designer for Acoustic Research before NHT. .......

476: Speaker Asylum, RE: A Great choice (0.00)
Posted by hahax@verizon.net on 2018-09-08, 13:31:52 (71.187.233.88)
I've mentioned this before but Gordon Holt's last set of speakers(that he bought) were active ATC 50s. He bought them because they were one of the only speakers that could make a good recording come a .......

477: Speaker Asylum, RE: Dedicated Harbeth owner - switched to ATC (0.00)
Posted by hahax@verizon.net on 2018-09-08, 13:27:01 (71.187.233.88)
In my room ATC 19s measured about 8 dB up at 30 Hz and this is a speaker with a Qtc of 0.5 so it still sounded clean. I wonder what less well damped speakers(most of them) would have done? ::: TOPIC:: .......

478: Speaker Asylum, RE: Acoustic suspension design speakers.... (0.00)
Posted by hahax@verizon.net on 2018-09-06, 12:47:48 (71.187.233.88)
Infinite baffle just means that the back wave of the driver is not used That means that acoustic suspension is also infinite baffle. It's the reverse that may not be true. And you're correct. The clos .......

479: Speaker Asylum, RE: are you aware that 'critically damped' speaker designs are possible with either sealed or ported speakers? (0.00)
Posted by hahax@verizon.net on 2018-09-06, 05:00:49 (71.187.233.88)
But no matter what a ported design will have more over hang than a closed one. .......

480: Speaker Asylum, RE: Acoustic suspension design speakers.... (0.00)
Posted by hahax@verizon.net on 2018-09-05, 20:37:35 (71.187.233.88)
You are wrong. Acoustic suspension is closed box. The reverse may not be true. Certain conditions of the relationship of the characteristics of the woofer and cabinet must be met. For instance, the ol .......

481: Speaker Asylum, RE: "True" acoustic suspension woofers . . . (0.00)
Posted by hahax@verizon.net on 2018-09-05, 15:58:35 (71.187.233.88)
basically correct although your statement about Dickason is not really accurate as he does define acoustic suspension values for Qtc of 0.5(and 0.577 and 0.707) and if I recall correctly the Acoustic .......

482: Speaker Asylum, RE: Acoustic suspension design speakers.... (0.00)
Posted by hahax@verizon.net on 2018-09-04, 17:22:37 (71.187.233.88)
sorry, the terms are used interchangeably. if you think I'm wrong then explain what you mean the relationship of Vas and Vb. There is none without also adding in free air resonance of the driver. Then .......

483: Speaker Asylum, RE: Acoustic suspension design speakers.... (0.00)
Posted by hahax@verizon.net on 2018-09-04, 14:11:15 (71.187.233.88)
Small ATC speakers are closed box. I don't believe they are acoustic suspension. That being said I have lived with two pairs for months and they are superb speakers. .......

484: Speaker Asylum, RE: Acoustic suspension design speakers.... (0.00)
Posted by hahax@verizon.net on 2018-09-04, 14:05:02 (71.187.233.88)
At first I assumed Wiki was wrong. Anyone can write for it and there is no real editing. But I did a quick look up and it is basically correct. You either missed the explanation or misread it. Infinit .......

485: Speaker Asylum, RE: Acoustic suspension design speakers.... (0.00)
Posted by hahax@verizon.net on 2018-09-03, 20:50:29 (71.187.233.88)
I'm not sure there are any acoustic suspension speakers made today. If you mean unported(closed box) that's another question. Is that what you mean? Acoustic suspension died decades ago along with mos .......

486: Vinyl Asylum, RE: Friday night folk rock (0.00)
Posted by hahax@verizon.net on 2018-09-01, 20:28:06 (71.187.233.88)
You're right, absolutely great voice. And a superb writer also with lovely tunes and poetry to die for. Who knows Where The Time Goes is simply one of the great songs. And there are others. ::: TOPIC: .......

487: Vintage Asylum, RE: You 'may not' need tweeters ... (0.00)
Posted by hahax@verizon.net on 2018-08-30, 20:30:59 (71.187.233.88)
But you have AR 2AXs which are a 3 way with 3 1/2 " mid and 3/4" dome tweeter. He has aAR2s with double 5" tweeters. Your speakers are very different in the upper frequencies. However your correct abo .......

488: Vinyl Asylum, RE: RCA Dynagroove (0.00)
Posted by hahax@verizon.net on 2018-08-28, 20:28:01 (71.187.233.88)
came out the same time and was associated with Dynagroove. .......

489: Vinyl Asylum, RE: RCA Dynagroove (0.00)
Posted by hahax@verizon.net on 2018-08-27, 20:41:18 (71.187.233.88)
Early Dynagroove was so bad that after writing about it in a few issues of Stereophile, Gordon Holt refused to write about it any more. He considered it to have nothing to do with fidelity. I understa .......

490: Digital Drive, RE: Jitter - what's with that? (0.00)
Posted by hahax@verizon.net on 2018-08-26, 20:53:49 (71.187.233.88)
Jitter simply means that since the data points used to define the reconstructed analog wave forms are incorrectly spaced,the wave form that is reconstructed will have deviations from the input wave fo .......

491: High Efficiency Speaker Asylum, RE: if one wants to experiment modifying a direct radiator cone's polars (0.00)
Posted by hahax@verizon.net on 2018-08-24, 20:36:13 (71.187.233.88)
When the BBC was still designing their own monitor speakers they used 12 inch woofers and 8 inch mids. To enlarge the horizontal response they slot loaded the drivers with vertical slots giving the dr .......

492: Speaker Asylum, RE: I would tend to agree with you after buying a pair of Thiel CS.3.7 speakers... (0.00)
Posted by hahax@verizon.net on 2018-08-17, 20:27:02 (71.187.233.88)
A sample of one? Statistically untenable. .......

493: Tweakers' Asylum, RE: Loudspeaker Voicing (0.00)
Posted by hahax@verizon.net on 2018-08-16, 20:36:49 (71.187.233.88)
Boy, acoustic suspension. That's a rare bird these days. Amazing since in the late 60s it was probably more than half the market. But be careful, all closed boxes are not acoustic suspension. ::: TOPI .......

494: Vinyl Asylum, RE: Sheffield Labs (0.00)
Posted by hahax@verizon.net on 2018-08-16, 20:32:26 (71.187.233.88)
I remember when the Sheffield records first came out and how impressed we all were with them. And, of course, if you went to audio shows then you soon got sick of them because they were played so ofte .......

495: High Efficiency Speaker Asylum, RE: Zu Omen mkII or Klipsch Heresy III (0.00)
Posted by hahax@verizon.net on 2018-08-14, 20:34:52 (71.187.233.88)
Another possibility if you really like the Froy 3 sound(I'm biased. I use the Froy 3 and know the designer) try a powered sub woofer crossed atat least 80 Hz. This reduces the load and excursion of th .......

496: Amp/Preamp Asylum, RE: My guess: the amp sees 8 ohm bridged as a 4 ohm load (0.00)
Posted by hahax@verizon.net on 2018-08-14, 20:24:20 (71.187.233.88)
Yes it's correct and if the power supply were big enough the 4 ohm rating would be as high as 600 watts and then the bridged 8 ohm rating would be 1200 watts. .......

497: Amp/Preamp Asylum, RE: True or False? (0.00)
Posted by hahax@verizon.net on 2018-08-12, 20:52:50 (71.187.233.88)
Many class D amps use switching power supplies which replenish the caps many ore times than the 60 times a regular supply does which is dependent on the 60 Hz AC. So the smaller caps supply much more .......

498: Tubes Asylum, RE: Tubes that will perk up sound. Very Long sorry (0.00)
Posted by hahax@verizon.net on 2018-08-11, 21:11:00 (71.187.233.88)
If perk up the sound means you find the amp too sweet, I suspect you can improve things by tube swapping but you can't get rid of the basic sweetness of an SET amp. It's a result of high 2nd harmonic .......

499: Vintage Asylum, RE: Amp for EMI DLS=529 (0.00)
Posted by hahax@verizon.net on 2018-07-31, 19:05:14 (71.187.233.88)
Wild guess. These were equalized with old tube amps with low damping factor. I wouldn't use old transistor amps, not as reliable as modern solid state amps and very high damping factor. Unfortunately .......

500: General Asylum, RE: Most are Class A/B... (0.00)
Posted by hahax@verizon.net on 2018-07-27, 19:18:17 (71.187.233.88)
The statement should be most push/pull amplifiers are Class A/B since all single ended amps are class A since you can't turn off the out put device without turning off the amp. Almost no push/pull amp .......

Found total of 500 records, Query: , Author: hahax@verizon.net in All Forums, Time: 1 sec.

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