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1: Planar Speaker Asylum, RE: 3.6 crossover component values (0.00)
Posted by Roger Gustavsson on 2024-03-24, 06:08:17 (216.158.98.226)
Wonder about the precision of that measurement 0.829 mH. A 5% tolerance is more or less the norm. .......
2: Planar Speaker Asylum, RE: 3.6 crossover component values (0.00)
Posted by Roger Gustavsson on 2024-03-16, 08:56:08 (216.158.98.226)
The DC resistance is that low for the ferrite coil? You need a good meter to measure such low resistances. .......
3: Planar Speaker Asylum, RE: MG IIIa question (0.00)
Posted by Roger Gustavsson on 2024-03-08, 01:21:09 (216.158.98.226)
3Mâ„¢ Fastbondâ„¢ Contact Adhesive 30NF Neutral. In Europe it is only sold to companies. As you are in Italy, you can try at https://tuscanini.audio/it/ They use(d) to rebuild Magnepan. You can also buy s .......
4: Planar Speaker Asylum, RE: New Eminent Tech speaker with OB Dipole Woofers and Neo Magnets (0.00)
Posted by Roger Gustavsson on 2024-03-05, 04:28:27 (216.158.98.226)
That information is on youtube below the video... Michael Bublé .......
5: Planar Speaker Asylum, RE: Final Audio (0.00)
Posted by Roger Gustavsson on 2024-02-29, 08:42:35 (216.158.98.226)
I have heard these Final ESL, sounded good but the company history is not very impressive. .......
6: Planar Speaker Asylum, RE: MG IIIa question (0.00)
Posted by Roger Gustavsson on 2024-02-14, 02:05:54 (77.191.160.37)
As far as I have seen from measurements, the distorsion is lower for the 3.7 compared to older versions. .......
7: Planar Speaker Asylum, RE: Once you've heard that seamless response (0.00)
Posted by Roger Gustavsson on 2024-01-30, 07:22:11 (193.46.242.227)
Sound Lab are far to expensive in Europe and very rare. Acoustat is very old and extremely hard to find. I know that Per also is thinking about downsizing, maybe not planars at all. .......
8: Planar Speaker Asylum, RE: I hate my Quads! (0.00)
Posted by Roger Gustavsson on 2024-01-30, 01:49:52 (5.180.61.120)
Sad to hear this! Is the quality of Quad that bad nowadays? If you want to stay with planars, maybe Magnepan is an alternative for you? Some used 3.6, 3.7 or similar. .......
9: Planar Speaker Asylum, RE: MGIIIA: solder used to connect ribbon to wires that go to crossover (0.00)
Posted by Roger Gustavsson on 2024-01-28, 08:13:07 (193.46.242.227)
Use to be push-on connectors for the ribbon. I have not seen the wires soldered to the aluminium ribbon itself. .......
10: Planar Speaker Asylum, RE: MGIIIA listening - reversing the ribbons ... (0.00)
Posted by Roger Gustavsson on 2024-01-12, 05:36:51 (216.158.98.226)
Some older Tympanis have Mylar in front of the magnets. .......
11: Planar Speaker Asylum, RE: Jim Winey (0.00)
Posted by Roger Gustavsson on 2024-01-11, 07:46:55 (216.158.98.226)
Always sad when people leave us. How old did he get? .......
12: Planar Speaker Asylum, RE: Looking for magnepan ribbon tweeter repair instructions (0.00)
Posted by Roger Gustavsson on 2024-01-05, 15:39:28 (216.158.98.226)
I have an old one. I can send a PDF. .......
13: Planar Speaker Asylum, RE: Sure - mid panel is inverted ... (0.00)
Posted by Roger Gustavsson on 2024-01-05, 02:08:28 (216.158.98.226)
I am not sure you really can use a battery on speakers like these. You can use REW to measure frequency and impulse response. For some combinations of acoustic slopes, one of the drivers need to have .......
14: Planar Speaker Asylum, RE: MGIIIA question on panel polarity & connections (0.00)
Posted by Roger Gustavsson on 2023-12-31, 09:47:30 (216.158.98.226)
Mids may be inverted depending on the crossover. As always, if the outcome is a flat response, all is well... .......
15: Planar Speaker Asylum, RE: Magnepan 1.7 repair (0.00)
Posted by Roger Gustavsson on 2023-12-31, 07:26:57 (216.158.98.226)
That is not a copper wire, it is an insulated aluminium wire. It is only the colour of the insulation you see. .......
16: Planar Speaker Asylum, RE: Magnepan 1.7 repair (0.00)
Posted by Roger Gustavsson on 2023-12-29, 01:02:54 (216.158.98.226)
What old copper wire? .......
17: Planar Speaker Asylum, RE: Re-laminate Maggy 1.6qr's (0.00)
Posted by Roger Gustavsson on 2023-12-23, 01:13:54 (216.158.98.226)
Maybe you can use their Service Request Form? https://magnepan.com/pages/service-form Re-laminate is perhaps not what they use to call it, rebuild with new wiring is closer to what they do. It will n .......
18: Planar Speaker Asylum, RE: Biamp / triamp MGIIIA...? (0.00)
Posted by Roger Gustavsson on 2023-12-22, 02:02:56 (216.158.98.226)
DPS will act in a similar way to passive or active crossovers when it comes to phase behaviour. I asked some guys about this... A miniDSP UMIK-1 microphone + REW is an easy and inexpensive way to meas .......
19: Planar Speaker Asylum, RE: Biamp / triamp MGIIIA...? (0.00)
Posted by Roger Gustavsson on 2023-12-21, 10:53:53 (216.158.98.226)
As long as the frequency is flat in the crossover region, everything ought to be fine. Phase and frequency response is not to be separated, if you change one of them, the other will also change. Corre .......
20: Planar Speaker Asylum, RE: Biamp / triamp MGIIIA...? (0.00)
Posted by Roger Gustavsson on 2023-12-21, 01:36:49 (216.158.98.226)
First you need to build the 6-24, not that cheap after all. After going for a solution with DSP, there was no way back. With DSP you can take it to another level and it is so much easier to set up. Y .......
21: Planar Speaker Asylum, RE: Biamp / triamp MGIIIA...? (0.00)
Posted by Roger Gustavsson on 2023-12-19, 23:39:57 (216.158.98.226)
A better, more flexible and cheaper way, is to bi-amp with a crossover that has DSP. It will let you tailor the sound of the speaker and optimise its behaviour in your room. (That said, I have two of .......
22: Planar Speaker Asylum, RE: Dumb Customer of the Year Award (0.00)
Posted by Roger Gustavsson on 2023-12-19, 09:28:45 (216.158.98.226)
Second part... .......
23: Planar Speaker Asylum, RE: 'Enhanced' T1-Ds for sale in Oz (0.00)
Posted by Roger Gustavsson on 2023-12-19, 00:36:15 (216.158.98.226)
What foil was used for these? The ID is 8 Ohm for each driver. If the foil is 23 Gauge, that would make 4 Ohm for each driver. Slightly higher mass than the original wiring but it sit more spread out .......
24: Planar Speaker Asylum, RE: Excellent ... (0.00)
Posted by Roger Gustavsson on 2023-12-12, 01:16:33 (216.158.98.226)
Still I=V/R. As the Magnepans driven active is a pure restive load there is not a lot of currrent running through them. The power amps used by myself will not run out of current but of voltage. They c .......
25: Planar Speaker Asylum, RE: Beardy (0.00)
Posted by Roger Gustavsson on 2023-12-11, 02:12:45 (216.158.98.226)
Magnepans are driven by voltage. A lot of voltage will also result in more current. Most Magnepans shows an impedance of 4-5 Ohm, those with ribbon tweeters dip to 3 Ohm. Yes, the 1.7 is down to 2 Ohm .......
26: Planar Speaker Asylum, RE: Excellent ... (0.00)
Posted by Roger Gustavsson on 2023-12-10, 09:59:37 (216.158.98.226)
Pass F5 is only 40 W into 4 Ohm. That is not enough! .......
27: Planar Speaker Asylum, RE: Any Tympani-IV / T-IVa owners? Working on mine, and mods (0.00)
Posted by Roger Gustavsson on 2023-12-09, 09:42:11 (216.158.98.226)
Part of my post above is not shown. Tried to edit by nothing happens. .......
28: Planar Speaker Asylum, RE: Any Tympani-IV / T-IVa owners? Working on mine, and mods (0.00)
Posted by Roger Gustavsson on 2023-12-09, 05:47:16 (216.158.98.226)
Very good components need to be placed externally. Wima MKP 10/400 VDC, is a very good capacitor. Make sure it is the 400 VDC not the 250 VDC. Also make sure it is not the MKP 4. Yes, the MKP 10 is la .......
29: Planar Speaker Asylum, RE: "the push-pull ribbon of the T1-D" ... (0.00)
Posted by Roger Gustavsson on 2023-12-08, 02:12:18 (216.158.98.226)
"The on the photo of the T1-D P-P tweeter panel, are the horizontal cuts and those curved cuts at the bottom in the MDF to reduce resonance of the panel? Seems like it would have been better to leave .......
30: Planar Speaker Asylum, RE: "the push-pull ribbon of the T1-D" ... (0.00)
Posted by Roger Gustavsson on 2023-12-07, 09:04:02 (216.158.98.226)
Maybe I was not clear. The low bass up to about 400 Hz and the midbass to 800 Hz. The push-pull tweeter above 800 Hz. Yes, I am aware there will be some fiddling with a suitable crossover. I prefer to .......
31: Planar Speaker Asylum, RE: "the push-pull ribbon of the T1-D" ... (0.00)
Posted by Roger Gustavsson on 2023-12-07, 06:53:39 (216.158.98.226)
It is do-able. Not that the thin (1/8") Masonite board is very suitable for mounting the drivers to. There are a few things that can be made differently. Like removing the drivers from the origina .......
32: Planar Speaker Asylum, RE: "the push-pull ribbon of the T1-D" ... (0.00)
Posted by Roger Gustavsson on 2023-12-06, 01:52:22 (216.158.98.226)
With Tympani ID, there is room for a ribbon tweeter next to the original pus-pull Magneplanar tweeter. The whole push-pull tweeter is a bit weird, its overall width is very wide, about 8 inches. The d .......
33: Planar Speaker Asylum, RE: MG3.6r help? (It's been a while) (0.00)
Posted by Roger Gustavsson on 2023-12-02, 02:14:39 (216.158.98.226)
I think you are forgetting that there is more steel in there than the jumpers... No, just unlock the lugs inside the box. Put the lugs inside the yellow circle together with the lugs in the red cir .......
34: Planar Speaker Asylum, RE: MG3.6r help? (It's been a while) (0.00)
Posted by Roger Gustavsson on 2023-12-01, 09:47:32 (216.158.98.226)
This is what it looks like. outside and inside. Maybe you can just some of the lugs inside to the right spot, no need for jumpers or cables. You can even solder the connections in there. ::: TOPIC .......
35: Planar Speaker Asylum, RE: Any Tympani-IV / T-IVa owners? Working on mine, and mods (0.00)
Posted by Roger Gustavsson on 2023-11-25, 23:04:40 (216.158.98.226)
They are my own T-IVa mids rebuilt some years ago by a friend. .......
36: Planar Speaker Asylum, RE: Any Tympani-IV / T-IVa owners? Working on mine, and mods (0.00)
Posted by Roger Gustavsson on 2023-11-25, 04:05:11 (216.158.98.226)
@ UncleMeat Is your crossover looking like this one or is it something else? As shovn, it is not 18 dB/octave in the LP for the bass, only 12 db/octave. What about the phasing? Do you mean the cro .......
37: Planar Speaker Asylum, RE: Any Tympani-IV / T-IVa owners? Working on mine, and mods (0.00)
Posted by Roger Gustavsson on 2023-11-24, 21:16:31 (216.158.98.226)
IVa in production April 1985-February 1991. I think they started with foil with the MG.1.5/QR in 1991. .......
38: Planar Speaker Asylum, RE: Any Tympani-IV / T-IVa owners? Working on mine, and mods (0.00)
Posted by Roger Gustavsson on 2023-11-20, 09:08:37 (216.158.98.226)
I haven't done it yet... When/if, I will remove the Mylar and sand down the the spacers til the Mylar can have a flat surface to sit on and with a uniform distance to the magnets. Then tensioning new .......
39: Planar Speaker Asylum, RE: Any Tympani-IV / T-IVa owners? Working on mine, and mods (0.00)
Posted by Roger Gustavsson on 2023-11-20, 04:17:51 (216.158.98.226)
Here is another picture of a Tympani IV midrange driver, not a sign of double-sided foam tape there... Magnepan used to make changes without notification, I have senn it before on Tympani Bass Speaker .......
40: Planar Speaker Asylum, RE: Anyone hear the new Quad ESL-2812 at CAF? (0.00)
Posted by Roger Gustavsson on 2023-11-20, 02:46:59 (216.158.98.226)
Strange, there is no word about 2812X or 2912X on Quad's homepage... .......
41: Planar Speaker Asylum, RE: Any Tympani-IV / T-IVa owners? Working on mine, and mods (0.00)
Posted by Roger Gustavsson on 2023-11-20, 00:33:11 (216.158.98.226)
Below pictures showing the mids of T-IV and T-IVa. So your does not have the diaphragm divided into several sections? For the highest performance, it is important that the Mylar stays fixed to the dou .......
42: Planar Speaker Asylum, RE: Any Tympani-IV / T-IVa owners? Working on mine, and mods (0.00)
Posted by Roger Gustavsson on 2023-11-19, 11:01:09 (216.158.98.226)
I haven't seen this until now. Are the mids finsihed by now? If not, you can rewire them with foil conductors (32 gauge). The Mylar must be fixed to the horizontal damping strips. This is a common fau .......
43: Planar Speaker Asylum, RE: Anyone hear the new Quad ESL-2812 at CAF? (0.00)
Posted by Roger Gustavsson on 2023-11-19, 00:45:02 (216.158.98.226)
Following Quad's normal pratice, it should have a different name, like 2823 or so. .......
44: Planar Speaker Asylum, RE: The previous poster said "Your amp will work just fine" ... (0.00)
Posted by Roger Gustavsson on 2023-11-05, 03:33:02 (216.158.98.226)
There are no models left for bi-amping since many years. It is always possible to remove the original crossover and use something else.... .......
45: Planar Speaker Asylum, RE: Magnepan Upgrade Program & A Question on Older Speakers (0.00)
Posted by Roger Gustavsson on 2023-10-21, 03:42:54 (216.158.98.226)
No, I have not looked into it, yet. I think a cold solder joint would be seen while measuring distorsion, just as a loose wire on the Mylar. Also, wondering why they use two layers of speaker covers i .......
46: Planar Speaker Asylum, RE: Magnepan Upgrade Program & A Question on Older Speakers (0.00)
Posted by Roger Gustavsson on 2023-10-21, 02:32:42 (194.233.96.86)
Barry wrote: "Closer tolerances on driver panels and ribbons will yield better imaging too." That seems to a be common "fault" on Magnepans. It was also mentioned in the review of the 20.7 in Hifi New .......
47: Planar Speaker Asylum, RE: Interview with Jim Winey (0.00)
Posted by Roger Gustavsson on 2023-10-08, 03:37:02 (216.158.98.226)
There is a link a few days earlier than your post... https://www.audioasylum.com/cgi/vt.mpl?f=mug&m=252396 .......
48: Planar Speaker Asylum, RE: 3.7i midrange compared to MG111A (0.00)
Posted by Roger Gustavsson on 2023-10-07, 02:34:31 (216.158.98.226)
emailtim wrote: "The 3.7's use foil instead of wire on the diaphragm so there is less moving mass on the 3.7 than the older models." That is not the case! The foil used is higher mass than the round w .......
49: Planar Speaker Asylum, RE: 3.7i midrange compared to MG111A (0.00)
Posted by Roger Gustavsson on 2023-10-05, 03:13:11 (216.158.98.226)
To me, the integration of mid and tweeter is better on the 3.7i as is the imaging. .......
50: Planar Speaker Asylum, RE: 3.6R crossover value question (0.00)
Posted by Roger Gustavsson on 2023-08-30, 07:02:54 (216.158.98.226)
A higher value will let the tweeter play lower. That is im my opion not good, it will be more stressed. 3.7, 20, 20.1, 20.7 and 30.7 have the same tweeter and there it is crossed over at a higher freq .......
51: Planar Speaker Asylum, RE: 3.6R crossover value question (0.00)
Posted by Roger Gustavsson on 2023-08-29, 23:09:42 (194.233.96.79)
What is the tolerance of these capacitors? The drivers themself also have tolerances. The tweeters of the 3.6 are a bit stressed by the lower crossover frequency compared to other Magnepans using the .......
52: Planar Speaker Asylum, RE: would you buy Maggies if they were made in China ? (0.00)
Posted by Roger Gustavsson on 2023-08-04, 01:44:37 (216.158.98.226)
Using rare-earth magnets would take the price to a level where must of us cannot afford the speakers. Apart from that, these rare-earth magnets will be sourced from China in almost all cases... The ma .......
53: Planar Speaker Asylum, RE: Return to factory by slow boat? ;) nt. (0.00)
Posted by Roger Gustavsson on 2023-08-02, 04:32:04 (216.158.98.226)
Return to factory by slow boat is what we europeans need to do in order to have anything done at the factory in Lake Bear. There are some non-official restorer in Europe but it will include some ship .......
54: Planar Speaker Asylum, RE: If Magnepan still source their magnets from Arnolds Magnetics ... (0.00)
Posted by Roger Gustavsson on 2023-07-24, 23:31:13 (216.158.98.226)
I think Winey refered to Plastiform Magnets from Arnold Magnetics. https://www.arnoldmagnetics.com/products/plastiform-high-energy-bonded-magnets/ .......
55: Planar Speaker Asylum, RE: would you buy Maggies if they were made in China ? (0.00)
Posted by Roger Gustavsson on 2023-07-24, 09:15:14 (216.158.98.226)
Nowadays, most magnetic materials is from China. If Magnepan still source their magnets from Arnolds Magnetics, the magnets probably comes from their chinese division. .......
56: Planar Speaker Asylum, RE: MG3A external crossover capacitor refresh / upgrade (0.00)
Posted by Roger Gustavsson on 2023-06-22, 10:05:35 (216.158.98.226)
Replacing the electrolytics with film caps may be expensive. For lower frequencies there is not much to gain in fidelity. You can replace them with fresh bi-polar electrolytics or with polyester film .......
57: Planar Speaker Asylum, RE: Bass in recordings mastered using box speakers.... (0.00)
Posted by Roger Gustavsson on 2023-05-28, 22:54:31 (216.158.98.226)
I have seen pictures of a recording studio in Norway using Magnepan, think it was 20.7. .......
58: Planar Speaker Asylum, RE: Alsyvox (0.00)
Posted by Roger Gustavsson on 2023-05-28, 22:44:03 (216.158.98.226)
Alsyvox looks like this: .......
59: Planar Speaker Asylum, RE: 3.6 crossover component values (0.00)
Posted by Roger Gustavsson on 2023-05-20, 01:45:13 (216.158.98.226)
I think this will be the difference between the orignal 17.1 and the 14.1 .......
60: Planar Speaker Asylum, RE: +1 (0.00)
Posted by Roger Gustavsson on 2023-05-09, 06:46:45 (216.158.98.226)
I still think this is the way to go, tinyurl.com/2p93dtpw .......
61: Planar Speaker Asylum, RE: Nice work! (0.00)
Posted by Roger Gustavsson on 2023-05-03, 07:09:28 (216.158.98.226)
The extrusions certainly stiffen up the baffles but I think the perforated sheet metal need stiffening as well. If the that moves, it is distorsion. The small crossbars Magnepan puts there is not doin .......
62: Planar Speaker Asylum, External Crossovers Tympani IV (0.00)
Posted by Roger Gustavsson on 2023-04-30, 07:31:05 (216.158.98.226)
Yes, my fault. They are Tympani IV crossovers. A bit strange that the schematic on the crossover itself is different from the schematic in the document. The low pass section is 18 db/octave as indicat .......
63: Planar Speaker Asylum, RE: External Crossovers Tympani IVa (0.00)
Posted by Roger Gustavsson on 2023-04-26, 23:34:49 (216.158.98.226)
I have the external crossovers for the T-IVa and MG-3.6 in storage. The components in them are really not much worth. .......
64: Planar Speaker Asylum, External Crossovers Tympani IVa (0.00)
Posted by Roger Gustavsson on 2023-04-26, 01:30:39 (216.158.98.226)
What a price for a pair of these crossovers! https://www.kijiji.ca/v-stereo-systems-home-theatre/mississauga-peel-region/magnepan-mangeplanar-tympani-iv-crossovers-original-mint/1657735713 ::: TOPIC:: .......
65: Planar Speaker Asylum, RE: Maggie 1.7i crossover schematic please!! (0.00)
Posted by Roger Gustavsson on 2023-04-24, 09:45:49 (216.158.98.226)
The 1.7 is a hard load for the power amp at higher frequencies. The speaker itself produces rather high distorsion in the bass if you push it. The 3.7 is far better. .......
66: Planar Speaker Asylum, RE: Maggie 1.7i crossover schematic please!! (0.00)
Posted by Roger Gustavsson on 2023-04-24, 01:07:20 (216.158.98.226)
Found the schematic! .......
67: Planar Speaker Asylum, RE: Maggie 1.7i crossover schematic please!! (0.00)
Posted by Roger Gustavsson on 2023-04-24, 00:58:28 (216.158.98.226)
It looks like this. Not sure about the values but I have seen them somewhere. It is a series crossover (https://sound-au.com/parallel-series.htm). I think the components interacts in some way whic .......
68: Planar Speaker Asylum, RE: "minimum listening distance" ... (0.00)
Posted by Roger Gustavsson on 2023-04-23, 00:27:50 (216.158.98.226)
If you are sitting too far away, you are listening more to your room than the speakers. 60 feet away would be like listen through a tunnel... .......
69: Planar Speaker Asylum, RE: Prototype Heard at Capital Audiofest last year (0.00)
Posted by Roger Gustavsson on 2023-04-13, 00:26:08 (216.158.98.226)
It is no secreet that planar speakers tends to sound too spacious, creates an additional room, a sort of sameness. The best planars are better in that aspect. We also have different opions on what sou .......
70: Planar Speaker Asylum, RE: Janzen 9.5's (0.00)
Posted by Roger Gustavsson on 2023-04-12, 02:44:14 (216.158.98.226)
@ Josh The German Audio Exklusiv has "a line source ESL-63" since about 1980. Today they have two models doing this, the P3.1 and the P6.1. They even had built-in tube power amplifiers earlier. https .......
71: Planar Speaker Asylum, RE: Anyone do this shortcut mod?. (0.00)
Posted by Roger Gustavsson on 2023-04-12, 02:38:45 (216.158.98.226)
It will not play very well... .......
72: Planar Speaker Asylum, RE: Magnepan MG 0.5 QR (0.00)
Posted by Roger Gustavsson on 2023-03-18, 06:32:34 (216.158.98.226)
The was nothing bad with the bass in that room, flat to 30 Hz without boom. Also had them in a larger room 6x4 m but no gains in bass performance. Soundstaging improved in the larger room though. I am .......
73: Planar Speaker Asylum, RE: Magnepan MG 0.5 QR (0.00)
Posted by Roger Gustavsson on 2023-03-18, 01:56:39 (216.158.98.226)
Wil wrote: "Will I need bigger Maggies for good bass? Can I place bigger ones in my small room?" You will need bigger Maggies for good bass. I have had Tympani IIIA (8 panels each 40 cm wide) in a sma .......
74: Planar Speaker Asylum, RE: Magnepan MG 0.5 QR (0.00)
Posted by Roger Gustavsson on 2023-03-15, 09:32:16 (216.158.98.226)
Wil wrote: "At YouTube there is a man called Jay, who tell's what the best amps are for little Magnepans. He mentiones Hegel, Naim and ...... These amps deliver a lot of current, not Watt's." The ampl .......
75: Planar Speaker Asylum, RE: wonder if Manepan would make me a copper version of the LRS ? (0.00)
Posted by Roger Gustavsson on 2023-03-13, 02:37:14 (216.158.98.226)
Copper vs. aluminium is also a matter of moving mass. For a given resistance, it doubles for copper and it will be a stupid solution for high frequency reproduction. .......
76: Planar Speaker Asylum, RE: 20.7 inside pics please (0.00)
Posted by Roger Gustavsson on 2023-02-22, 11:19:05 (185.219.140.161)
Do you remember if the bass/mid driver was held in place by styles or screws? Maybe the driver was just squeezed by the two halves of baffles? .......
77: Planar Speaker Asylum, RE: the problem with Nagnepans .... (0.00)
Posted by Roger Gustavsson on 2023-02-09, 01:09:54 (216.158.98.226)
Doesn't the Apogee Scintilla MRT unit need a lot of power at a very low impedance? .......
78: Planar Speaker Asylum, RE: Effect of 2.5" long wings on back of Maggies (0.00)
Posted by Roger Gustavsson on 2023-01-29, 02:31:50 (216.158.98.226)
Try hollow aluminium profiles filled with (heavy) blasting sand. I think there should be stiffening across the other direction of the baffle, if possible holding the perforated sheet metal in a tight .......
79: Planar Speaker Asylum, RE: GL's 20s (0.00)
Posted by Roger Gustavsson on 2023-01-28, 09:11:16 (216.158.98.226)
Someone wrote about sending just the bass/mid panel to Magnepan, just the driver not the whole speaker. Who was it? .......
80: Planar Speaker Asylum, RE: 20.7 inside pics please (0.00)
Posted by Roger Gustavsson on 2023-01-27, 02:00:44 (216.158.98.226)
I think Green Lantern has removed panels from his MG 20. Maybe you can ask him? .......
81: Planar Speaker Asylum, RE: what is the allen wrench size for the speaker wire posts on the LRS? (0.00)
Posted by Roger Gustavsson on 2023-01-20, 13:34:54 (216.158.98.226)
2 mm for us in Europe. .......
82: Planar Speaker Asylum, RE: Foil vs Wire: What difference does it make? (0.00)
Posted by Roger Gustavsson on 2023-01-06, 09:47:41 (216.158.98.226)
Speakers like Magnepan need to be measured at a distance. The response varies a bit over the driver(s). Measuring at a distance will include the room... You will need to measure the two speakers in ex .......
83: Planar Speaker Asylum, RE: Magnepan's QC (0.00)
Posted by Roger Gustavsson on 2023-01-04, 10:04:07 (216.158.98.226)
That use to be caused by bad handling during shipping. .......
84: Planar Speaker Asylum, RE: 3.7i's powered by Musical Fidelity A5.5 enough? (0.00)
Posted by Roger Gustavsson on 2023-01-04, 08:24:43 (194.233.96.121)
How much current do think goes through your Maggies? As they are almost a pure resistive load you can use Ohms law. 200 W in 4 Ohm is 7 A. 30 W in 8 will come out as 60 W in 4 Ohm or 120 W peak. ::: T .......
85: Planar Speaker Asylum, RE: Foil vs Wire: What difference does it make? (0.00)
Posted by Roger Gustavsson on 2022-12-31, 07:49:27 (216.158.98.226)
Round vs. flat wire in a planar has been investigated by Joppe Peelen. As the diaphragm gets stiffer with the foil it also changes the frequency response. Slightly better for higher frequencies but no .......
86: Planar Speaker Asylum, RE: 3.6R crossover mods (0.00)
Posted by Roger Gustavsson on 2022-12-30, 23:58:26 (216.158.98.226)
If think both can be done. The question is: Will it make a large difference? .......
87: Planar Speaker Asylum, RE: anyone else think that Maggies look bad in White ? (0.00)
Posted by Roger Gustavsson on 2022-12-30, 10:42:17 (216.158.98.226)
There is need to remove staples, you can remove the whole front by unscrewing from the back. .......
88: Planar Speaker Asylum, RE: anyone else think that Maggies look bad in White ? (0.00)
Posted by Roger Gustavsson on 2022-12-30, 02:57:54 (216.158.98.226)
So you didn't remove the grilles from the speaker? .......
89: Planar Speaker Asylum, RE: anyone else think that Maggies look bad in White ? (0.00)
Posted by Roger Gustavsson on 2022-12-29, 09:44:25 (216.158.98.226)
Hasse wrote: "The off white blends much better with the walls which makes them look smaller." I agree on that. Is there a way to wash the cloth? .......
90: Planar Speaker Asylum, RE: You've already done the best thing you could do, IMO, by actively biamping. :) (0.00)
Posted by Roger Gustavsson on 2022-12-29, 06:12:13 (216.158.98.226)
I was just a bit surprised that your aircore coils looked so small compared to the ones Magnepan installed. That could mean yours are having a higher resistance. The series resistance reduce the outpu .......
91: Planar Speaker Asylum, RE: You've already done the best thing you could do, IMO, by actively biamping. :) (0.00)
Posted by Roger Gustavsson on 2022-12-29, 00:57:15 (216.158.98.226)
The 0.82 and 0.27 mH need to have a low reistance (DCR) in order to not modify the frequency response. The 0.47 mH is less critical. Magnepan seems to have chosen the third order low pass on the mid i .......
92: Planar Speaker Asylum, RE: You've already done the best thing you could do, IMO, by actively biamping. :) (0.00)
Posted by Roger Gustavsson on 2022-12-28, 00:17:43 (216.158.98.226)
It looks great. Are the values of the components similar to the original ones? Maybe, different slopes could have been tested. A second look made me wonder. The coils in series with the midrange look .......
93: Planar Speaker Asylum, RE: Foil vs Wire: What difference does it make? (0.00)
Posted by Roger Gustavsson on 2022-12-27, 09:14:37 (216.158.98.226)
Comparing two generations of Magnepan where one has round wires and the other flat wires is not that easy. It is often more than the type of wires that separate them. Comparing the look of the naked 3 .......
94: Planar Speaker Asylum, RE: Foil vs Wire: What difference does it make? (0.00)
Posted by Roger Gustavsson on 2022-12-27, 04:52:11 (216.158.98.226)
triamp wrote: "The shape of the magnetic field around a flat foil might differ slightly from a round wire, but it's unlikely this is a large enough difference to affect the sound." It does effect the .......
95: Planar Speaker Asylum, RE: Foil vs Wire: What difference does it make? (0.00)
Posted by Roger Gustavsson on 2022-12-27, 00:47:22 (216.158.98.226)
The foil has the same mass! For a given resistance it does not matter if the wire is round or flat. .......
96: Planar Speaker Asylum, RE: not as difficult as you think ...... (0.00)
Posted by Roger Gustavsson on 2022-12-15, 08:41:34 (216.158.98.226)
Still, you need to evaluate these adjustments of several factors. What they say in the video may not be all true... I think the story behind the tiedowns is a bit more complicated. Originally they spr .......
97: Planar Speaker Asylum, RE: they gave out a lot of trade secrets ,,,,, (0.00)
Posted by Roger Gustavsson on 2022-12-15, 04:23:35 (216.158.98.226)
There is no new information in that video! I do not see it would hurt Magnepan that some of you fear. From an engineering standpoint it is simple, a perforated sheet of steel with some rubber magnets, .......
98: Planar Speaker Asylum, RE: You have to be careful (0.00)
Posted by Roger Gustavsson on 2022-12-14, 05:36:37 (216.158.98.226)
I see no secrets divulged either. The patents are there for everyone to read and give you an idea of the work behind it. Like the placement of "tiedowns" is a matter of trial and error. There is a com .......
99: Planar Speaker Asylum, RE: Suggestions? (0.00)
Posted by Roger Gustavsson on 2022-12-13, 08:01:49 (216.158.98.226)
Break in is only after new Mylar. If the Mylar was okey, Magnepan keep it and just replace the wiring. .......
100: Planar Speaker Asylum, RE: factory Video (0.00)
Posted by Roger Gustavsson on 2022-12-11, 10:03:27 (216.158.98.226)
I did a factory tour with my brother a while ago. I knew this stuff before I came there, how the tuning works, the crossovers, foil vs. round wire etc. I would have liked to spend more time there, Ken .......
101: Planar Speaker Asylum, RE: New Kid On The Block (0.00)
Posted by Roger Gustavsson on 2022-12-04, 01:34:53 (194.233.96.128)
The German Audio Exklusiv makes line source ESL similar to the concept of the Quad ESL-63. They even had some models with high voltage tube amplifiers. https://www.audio-exklusiv.de/classic-line/95/el .......
102: Planar Speaker Asylum, 3M 30NF and Super77 (0.00)
Posted by Roger Gustavsson on 2022-12-03, 01:31:11 (216.158.98.226)
I was a bit surprised to see that the process of adhesiving the foil conductors to the Mylar at Magnepan, did not included 3M 30NF. I only saw the Super 77 being used during my visit. Maybe, I did not .......
103: Planar Speaker Asylum, RE: Help with MG-IIIa ext crossover (0.00)
Posted by Roger Gustavsson on 2022-12-03, 00:33:57 (216.158.98.226)
To me, it seems there has been an extra pair (the red/black one) of inputs added. Maybe these bypass some part of the crossover? I think the bare wires are from the coils and these are insultated by .......
104: Planar Speaker Asylum, RE: My 3.6r's Went Home (0.00)
Posted by Roger Gustavsson on 2022-11-30, 05:07:55 (216.158.98.226)
Break-in is when they got new Mylar. .......
105: Planar Speaker Asylum, RE: Tympani 1D tweeter repair HOW TO (0.00)
Posted by Roger Gustavsson on 2022-11-21, 01:15:53 (216.158.98.226)
The link above seems to be dead for me. By the way, Magnepan now offers the wire used in the Tympani ID even as flat wire/foil. It will lower the efficiency somewhat but may alter the sound in some po .......
106: Planar Speaker Asylum, RE: speaker cable recommendations for Ps audio m700 and 2.7qr? (0.00)
Posted by Roger Gustavsson on 2022-11-12, 01:03:43 (216.158.98.226)
As someone wrote: "It's not a terrible amp, but it's terribly overpriced." You cannot feed 700 W into the MG 2.7. Cables are really not that important. .......
107: Planar Speaker Asylum, RE: DIPTYQUE RIBBON .... the French Maggies (0.00)
Posted by Roger Gustavsson on 2022-11-10, 05:04:49 (216.158.98.226)
https://www.diptyqueaudio.com/en/products/hifi/reference You can read about the speakers here, https://www.hifi-advice.com/blog/review/loudspeaker-reviews/loudspeakers-passive-reviews/diptyque-dp-1 .......
108: Planar Speaker Asylum, RE: I finally got the LRS to be rock speakers,,,,,, (0.00)
Posted by Roger Gustavsson on 2022-11-09, 22:22:45 (216.158.98.226)
JBL 4367 with coaxial compression tweet and mid? That is not correct. .......
109: Planar Speaker Asylum, RE: DIPTYQUE RIBBON .... the French Maggies (0.00)
Posted by Roger Gustavsson on 2022-11-09, 04:36:43 (216.158.98.226)
Diptyque employs large ferrite "plastolamine" magnets in a Push-Pull configuration. The sensitivity is similar to Magnepan. .......
110: Planar Speaker Asylum, RE: Room Size - Tympani III (0.00)
Posted by Roger Gustavsson on 2022-10-30, 01:07:46 (84.173.189.224)
Yes. I have three sets of different Tympanis and a pair of MG 3.6 (used now). Best imaging from Tympanis IVa and MG 3.6. These have their mids and tweetets closer together and there is little directio .......
111: Planar Speaker Asylum, RE: Danny tackles the 3.7i (0.00)
Posted by Roger Gustavsson on 2022-10-28, 01:17:14 (216.158.98.226)
His way of measuring a large dipol panel speaker is a bit odd to me. You cannot measure it at 60 inches. There is little connection to the perceived response. The response of the ribbon tweeter is no .......
112: Planar Speaker Asylum, RE: Room Size - Tympani III (0.00)
Posted by Roger Gustavsson on 2022-10-27, 00:59:37 (216.158.98.226)
I have a set of Tympani IIIA. They worked surprisingly well even in a small room, like 12.5 x 10 x 7 feet, although with a limited listening area. Also used them in a larger room, 20 x 13 x 8 feet. Mi .......
113: Planar Speaker Asylum, RE: tympani 4a's sent back to magnapan (0.00)
Posted by Roger Gustavsson on 2022-10-25, 04:30:13 (216.158.98.226)
The external crossover, LP for bass and HP f .......
114: Planar Speaker Asylum, RE: tympani 4a's sent back to magnapan (0.00)
Posted by Roger Gustavsson on 2022-10-19, 23:48:29 (5.180.61.131)
Foil on the mids is a good move. I recommend replacing the external crossover with an active linelevel crossover. .......
115: Planar Speaker Asylum, RE: Synergistic Research fuses (0.00)
Posted by Roger Gustavsson on 2022-10-17, 02:03:36 (216.158.98.226)
Agree! For such an old speaker there will be other things to look at. .......
116: Planar Speaker Asylum, RE: only heard Quads once (0.00)
Posted by Roger Gustavsson on 2022-10-10, 00:22:00 (216.158.98.226)
We are talking about the quality of the midrange not the complete speaker. Here in Europe, the 20.7 is more than twice the price of the Quad ESL-2912. .......
117: Planar Speaker Asylum, RE: was bad even before COVID (0.00)
Posted by Roger Gustavsson on 2022-10-09, 09:56:24 (216.158.98.226)
My visit at Magnepan last month showed that they make a batch of a single model. They are short of employees. There are 17 in production now, were 33 once. Supplies has been a problem. Maybe still is? .......
118: Planar Speaker Asylum, RE: only heard Quads once (0.00)
Posted by Roger Gustavsson on 2022-10-09, 02:45:54 (216.158.98.226)
It depends on what model of Magnepan you are comparing the Quad with. Quad beat most of the Magnepan in the midrange. You need to step up to the Magnepans with separate midrange drivers to be near the .......
119: Planar Speaker Asylum, RE: Magnepan will resume refurbishing older speakers (0.00)
Posted by Roger Gustavsson on 2022-10-06, 05:12:36 (216.158.98.226)
It depends on in which state the drivers are. If the Mylar is okey, they will just fit new wiring. I do not think they have new panels for old speakers. As far as I know, they do not repair the Tympan .......
120: Planar Speaker Asylum, RE: MMG tweeter repair (0.00)
Posted by Roger Gustavsson on 2022-10-04, 01:14:25 (216.158.98.226)
You need to replace the whole foil of the tweeter if it is broken. Even if it is not broken, it will be tricky to put it back where it should be. It is thin and break easily. .......
121: Planar Speaker Asylum, RE: Removing the fuse on Magnepan MG-1 IMP (0.00)
Posted by Roger Gustavsson on 2022-09-28, 01:15:43 (216.158.98.226)
Copper will oxidize rahter quickly. It would not make a huge difference bypassing the fuses. First clean the the fuseholders and the fuses. Your are certainly not using the 375 W from the power amp, t .......
122: Planar Speaker Asylum, RE: 1.6 crossover upgrade help (0.00)
Posted by Roger Gustavsson on 2022-09-27, 08:04:26 (216.158.98.226)
Schematic is like this, http://www.integracoustics.com/MUG/MUG/tweaks/mag16-2.gif In what direction do you expect the result of changing the components? The only component that is "so so" is the 3.5 .......
123: Planar Speaker Asylum, RE: How Magnepan LRSes are manufactured (0.00)
Posted by Roger Gustavsson on 2022-09-25, 14:41:22 (216.158.98.226)
Not sure if there are cookies with this link https://www.youtube.com/watch?v=4N6vZ6CoSeM .......
124: Planar Speaker Asylum, RE: How Magnepan LRSes are manufactured (0.00)
Posted by Roger Gustavsson on 2022-09-25, 10:16:08 (216.158.98.226)
As I have visited the factory two weeks ago, I am a bit confused while watching this video. I was not alloed to take pictures at some spots of the production but I can see it in the video! Amazing to .......
125: Planar Speaker Asylum, RE: Pretty common nowadays (0.00)
Posted by Roger Gustavsson on 2022-09-22, 02:10:26 (216.158.98.226)
When I visited the factory about a week ago, they had 17 people in production. I only saw a few but I think they just had a break (9 am). They had 33 once. It is not a large business. Production seems .......
126: Planar Speaker Asylum, RE: I made an extremely important discovery about the LRS ...... (0.00)
Posted by Roger Gustavsson on 2022-09-19, 03:35:54 (216.158.98.226)
At my visit to the Magnepan factory, these were the only ones that they could demonstrate, in the entrance hall. Double set of LRS or LRS+, not sure which. The DWM was not used. Not much lower bass fr .......
127: Planar Speaker Asylum, RE: Full Production of LRS+ ? Not according to Magnepan (0.00)
Posted by Roger Gustavsson on 2022-09-15, 13:05:32 (45.12.220.253)
I saw this a few days ago, LRS or LRS+, I can't tell. MDF is the same and they had quite a few. Batches up to 700 or so. .......
128: Planar Speaker Asylum, RE: Magnepan will resume refurbishing older speakers (0.00)
Posted by Roger Gustavsson on 2022-09-14, 06:01:14 (45.12.220.253)
A 3.6 being refurbished at Magnepan two days ago. .......
129: Planar Speaker Asylum, RE: Did you travel here primarily to go to the Magnepan factory? nt. (0.00)
Posted by Roger Gustavsson on 2022-09-13, 05:56:42 (69.173.163.241)
No, we made a trip in the ¨swedish¨ areas of Minnesota, it is just outside White Bear Lake. Being an owner of Magnepan speakers since 1980, it was ¨must¨to visit Magnepan. .......
130: Planar Speaker Asylum, RE: Not the same thing, but just to add, my Magnestand-modded 1.6QRs (0.00)
Posted by Roger Gustavsson on 2022-09-12, 18:55:09 (69.173.163.241)
I heard the LRS at Magnepan today, the only speaker they demonstrate at the factory. Not the best conditions for evaluation there. I am used to bigger Magnepans so I was not impressed. .......
131: Planar Speaker Asylum, RE: +1 (0.00)
Posted by Roger Gustavsson on 2022-09-12, 18:51:03 (69.173.163.241)
Visited Magnepan this morning and I saw a pair Tympanis and MG 3.6 being refurbished. It seems they have made some changes at the factory from what I have seen earlier in articles. They have no speake .......
132: Planar Speaker Asylum, RE: Magnepan LRS Crossover (0.00)
Posted by Roger Gustavsson on 2022-09-10, 05:29:32 (50.220.193.162)
I have not heard the LRS with the crossover from GR Research but from the published frequency response curves, they must sound different, probably brighter, more forward. .......
133: Planar Speaker Asylum, RE: Magnepan LRS Crossover (0.00)
Posted by Roger Gustavsson on 2022-09-09, 18:10:19 (86.106.103.251)
With a series crossover like in the LRS, changing the value of the coil will influence the capacitor as well. Not sure what will happen, never done series crossovers. .......
134: Planar Speaker Asylum, RE: those were tune amps tho ..... (0.00)
Posted by Roger Gustavsson on 2022-08-29, 05:30:00 (216.158.98.226)
Audio Research and Magnepan Tympani matched really well. My Tympani IIIA had a D-100, ARs first transistor power amp. Great for the bass section of the Tympani IIIA but not for mid/tweeter. Some guys .......
135: Planar Speaker Asylum, RE: I have a bunch of silly questions about MAGGIES .... (0.00)
Posted by Roger Gustavsson on 2022-08-29, 01:18:49 (216.158.98.226)
triamp wrote: " I think someone - Analysis Audio? Alsyvox? uses rare-earth magnets." Analysis probably not, they use large ferrite magnets in a single-ended design. Alsyvox, yes and it is a push-pull .......
136: Planar Speaker Asylum, RE: so if Maggies are 50 years old how were they driven back in the day ? (0.00)
Posted by Roger Gustavsson on 2022-08-29, 01:14:02 (216.158.98.226)
Magnepan and Audio Research were "partners" in the early seventies, at least Johnson and Winey were friends. Marketing was done by Audio Research. Distributors often paired Tympani with amplifiers and .......
137: Planar Speaker Asylum, RE: the wind cry's Mary ,,,,,, (0.00)
Posted by Roger Gustavsson on 2022-08-26, 00:47:20 (216.158.98.226)
The 20.7 may look similar to other Magnepans but they are sturdier and they will not be rocking while playing music as long as you let them well seated on the floor. Tapping them with a finger is not .......
138: Planar Speaker Asylum, RE: Magnepan LRS Crossover (0.00)
Posted by Roger Gustavsson on 2022-08-25, 04:26:40 (216.158.98.226)
To me, the GR Research crossover a different voicing of the LRS. Those who like the LRS as they come from the factory may be a bit disapointed. .......
139: Planar Speaker Asylum, RE: I have a bunch of silly questions about MAGGIES .... (0.00)
Posted by Roger Gustavsson on 2022-08-24, 10:17:42 (216.158.98.226)
Magnepan has investigated other types of magnets and rejected them. .......
140: Planar Speaker Asylum, RE: I have a bunch of silly questions about MAGGIES .... (0.00)
Posted by Roger Gustavsson on 2022-08-24, 02:24:38 (216.158.98.226)
A quick answer: 1 They would be very directional. 2 It depends on what model you are refering to. A "real" line source should go from floor to ceiling. 3 No good. These are dipol radiating and need a .......
141: Planar Speaker Asylum, RE: Active crossover question. (0.00)
Posted by Roger Gustavsson on 2022-08-22, 08:47:28 (216.158.98.226)
Did a simulation and Butterworth is really okey for the LP section. The HP can be passive, speaker level (120 uF) or line level (smaller value in front of the power amp). You can do without additional .......
142: Planar Speaker Asylum, RE: Active crossover question. (0.00)
Posted by Roger Gustavsson on 2022-08-22, 07:19:04 (216.158.98.226)
The HP is about 330 Hz and it is 6 dB/octave. Not much to gain with an active crossover for that part. The LP is neither Butterworth (18 dB/octave) or Linkwitz-Riley (which is 12 or 24 dB/octave). Ty .......
143: Planar Speaker Asylum, RE: thats it for me .... where do I sign on the dotted line ? (0.00)
Posted by Roger Gustavsson on 2022-08-19, 00:20:10 (216.158.98.226)
I would advice to keep the space between the speaker and the floor closed, it helps the bass response. .......
144: Planar Speaker Asylum, RE: Def post your findings. (0.00)
Posted by Roger Gustavsson on 2022-08-18, 03:37:23 (216.158.98.226)
If the HiFi tuning fuses are slow blow they will not protect at all. .......
145: Planar Speaker Asylum, RE: Magnepan tweeter replacement assistance... (0.00)
Posted by Roger Gustavsson on 2022-08-06, 03:22:22 (216.158.98.226)
There is a push-on connector at each end. Pry them off. The cables may need a bit bending. I would keep the protectors in place while doing this. Below a picture the tab connector. .......
146: Planar Speaker Asylum, RE: I'd mimic the .7 (0.00)
Posted by Roger Gustavsson on 2022-08-05, 05:18:05 (37.46.121.243)
Raising them off the floor will reduce the bass somewhat. .......
147: Planar Speaker Asylum, RE: How can T-1Ds lose bass? (0.00)
Posted by Roger Gustavsson on 2022-07-30, 00:51:43 (216.158.98.226)
Still curious of what that bass response looked like. "A drop from 600 Hz downwards" is a bit strange. Maybe an acoustic mismatch? .......
148: Planar Speaker Asylum, RE: Rolled off. nt (0.00)
Posted by Roger Gustavsson on 2022-07-28, 00:41:24 (216.158.98.226)
Andy, what kind of roll off is it? Are you sure all is okey in the rest of the amplifying chain? .......
149: Planar Speaker Asylum, RE: Rolled off. nt (0.00)
Posted by Roger Gustavsson on 2022-07-27, 23:40:03 (216.158.98.226)
Strange with that rolled of bass. Even my very old basses worked until the wiring on the Mylar failed. .......
150: Planar Speaker Asylum, RE: How can T-1Ds lose bass? (0.00)
Posted by Roger Gustavsson on 2022-07-27, 08:40:01 (216.158.98.226)
Andy's friend use a miniDSP in place of the internal crossover. The jumpers between the panels can corrode. .......
151: Planar Speaker Asylum, RE: Yes there is, Roger - the same bass! nt (0.00)
Posted by Roger Gustavsson on 2022-07-27, 03:20:46 (83.185.92.154)
Full bass or rolled off? .......
152: Planar Speaker Asylum, RE: "other slopes and frequencies" ... (0.00)
Posted by Roger Gustavsson on 2022-07-27, 00:42:51 (216.158.98.226)
If you run the basses without any crossover. Is there any bass then? .......
153: Planar Speaker Asylum, RE: How can T-1Ds lose bass? (0.00)
Posted by Roger Gustavsson on 2022-07-26, 05:33:07 (216.158.98.226)
Just do a reset and start from the beginning. I have done mistakes several times. I would also try some other slopes and frequencies. Why not a lower crossover frequency? It could improve imaging. ::: .......
154: Planar Speaker Asylum, RE: How can T-1Ds lose bass? (0.00)
Posted by Roger Gustavsson on 2022-07-26, 03:21:31 (216.158.98.226)
Andy, that is strange. I suggest checking the settings of the miniDSP, it is easy to do mistakes there. .......
155: Planar Speaker Asylum, RE: Is 50 Watts per channel enough for MG1-IMP? (0.00)
Posted by Roger Gustavsson on 2022-06-15, 01:26:36 (216.158.98.226)
"More power, (or current) is always better for Maggies." As Maggies are alomost resistive loads, the amount of current is not that high. Power into 4 Ohms is a good indicator for the MG1-Imp. 100 W in .......
156: Planar Speaker Asylum, RE: Minidsp Nanodigi DSP crossover and 4 subwoofers (0.00)
Posted by Roger Gustavsson on 2022-06-03, 01:06:26 (216.158.98.226)
miniDSP nanoDIGI is no longer in production. I found a used one some time ago. .......
157: Planar Speaker Asylum, RE: What is the life of a Magnepan Speaker? (0.00)
Posted by Roger Gustavsson on 2022-05-09, 00:26:55 (216.158.98.226)
The 3.6 has a fundamental resonance at about 42 Hz that can bottom out the diaphragm (hitting the magnets). Also make sure the bass/driver is not loose, causing rattling against the MDF frame. Sometim .......
158: Planar Speaker Asylum, RE: And thicker still than Sound Labs at 2.5 microns (0.00)
Posted by Roger Gustavsson on 2022-05-03, 05:41:26 (216.158.98.226)
There was a review of a Soundlab that indicated a problem, there was a 12µm film installed and it was replaced by the correct 6 µm. Not sure if it is 2.5µm. .......
159: Planar Speaker Asylum, RE: "Paper thin" speakers (0.00)
Posted by Roger Gustavsson on 2022-05-01, 23:06:03 (216.158.98.226)
That is quite a bit thicker than then film used by Quad which is 3.5µm (about 1/5 of the Acoustat Mylar). .......
160: Planar Speaker Asylum, RE: "Paper thin" speakers (0.00)
Posted by Roger Gustavsson on 2022-05-01, 10:04:51 (216.158.98.226)
It seems the paper thin speaker cannot reproduce lower frequencies at normal listening levels. How should be capable to be used as a noise reduction in a car where the level is very high? .......
161: Planar Speaker Asylum, RE: Acoustat Spectra 11 (0.00)
Posted by Roger Gustavsson on 2022-04-29, 08:06:21 (216.158.98.226)
"I decided on the Goldwood GW208 (4ohm) as it met all of the specs necessary to work well in this design. It is a noticeable improve, with only a few hours on them so far." The Thiele-Small parameters .......
162: Planar Speaker Asylum, RE: What is the life of a Magnepan Speaker? (0.00)
Posted by Roger Gustavsson on 2022-04-22, 06:15:04 (216.158.98.226)
I have Tympani IIIA from 1976, Tympani ID from about 1977, Tympani IVa from 1985 and MG 3.6 from 2003. All Tympanis have a rewire, some small defecta in the Mylar in the eldest ones. Seems that Mylar .......
163: Planar Speaker Asylum, RE: Check the REL website (0.00)
Posted by Roger Gustavsson on 2022-04-03, 23:07:33 (89.249.65.77)
Small planars will benefit a lot from having the low bass removed and leave that to the sub(s). .......
164: Planar Speaker Asylum, RE: How do you set up Maggies with a Subwoofer? (0.00)
Posted by Roger Gustavsson on 2022-04-03, 10:08:39 (216.158.98.226)
There will be an overlap. The LRS will not be unburden from bass. .......
165: Planar Speaker Asylum, RE: Magnepan 3.7i new XO (0.00)
Posted by Roger Gustavsson on 2022-03-09, 02:09:56 (216.158.98.226)
"I know a guy who created an active filter. His name is Marchand." In most cases it is not text book slopes you want and that is what most ready made active crossovers have. Far better is totally adju .......
166: Planar Speaker Asylum, RE: Can you explain how to use 2x stereo amps to drive a pair of 3.7is, Dave. nt (0.00)
Posted by Roger Gustavsson on 2022-03-08, 03:59:42 (216.158.98.226)
I saw Martins question on diyaudio. As shown there, it is not an easy task if you like to have the same result with a parallel crossover. I think you need to do a new crossover from scratch if bi-ampi .......
167: Planar Speaker Asylum, RE: How should I modify the X-OVER in my LRS ? (0.00)
Posted by Roger Gustavsson on 2022-03-01, 00:39:40 (216.158.98.226)
If you like the LRS as it is, I would advice against the crossover changes shown in that video. I think it will sound very much different. .......
168: Planar Speaker Asylum, RE: Room treatments for big Maggies (0.00)
Posted by Roger Gustavsson on 2022-02-20, 07:34:22 (216.158.98.226)
Listening room acoustics is not a simple thing: It is certainly not as simple as absorption or diffusion. It is a very complicated mix of them, the dimensions of the room, the type of wall constructio .......
169: Planar Speaker Asylum, RE: Physics of Maggie ribbons? (0.00)
Posted by Roger Gustavsson on 2022-02-17, 00:26:29 (84.173.185.214)
Well, I would not call them ribbon speakers as they are planars. You can find ribbon tweeters in the more costly models. .......
170: Planar Speaker Asylum, RE: but will this get me a discount on 30.7's? (0.00)
Posted by Roger Gustavsson on 2022-02-03, 06:45:12 (216.158.98.226)
It would surprise me if there is a demand that would justify a more modern way of production. .......
171: Planar Speaker Asylum, RE: It seems that he is advocating for horizontal biamping (0.00)
Posted by Roger Gustavsson on 2022-01-20, 04:44:49 (216.158.98.226)
I too have a stereo power amplifier on each MG 3.6. Also using an active low pass crossover on the bass channels. The mid/tweeter section is passively crossed over through a capacitor at line level. T .......
172: Planar Speaker Asylum, RE: Why do you say that, Roger? ... (0.00)
Posted by Roger Gustavsson on 2022-01-19, 06:49:47 (216.158.98.226)
Having a resistor in series with the tweeter use to reduce the distorsion while driving it "active". This has been discussed in Swedish audio forums several times for the last 30 years, something to d .......
173: Planar Speaker Asylum, RE: Bi-amping question (0.00)
Posted by Roger Gustavsson on 2022-01-19, 00:16:24 (216.158.98.226)
For tweeters it is not an advantage. For bass, it often is but not always for conventional drivers. .......
174: Planar Speaker Asylum, RE: Bi-amping question (0.00)
Posted by Roger Gustavsson on 2022-01-18, 07:23:47 (216.158.98.226)
Not much of to gain with biamping at that crossover frequency. .......
175: Planar Speaker Asylum, RE: Deeper bass without deeper-bass-speakers (0.00)
Posted by Roger Gustavsson on 2021-12-31, 11:32:39 (216.158.98.226)
As far as I know, the speakers are not too close to the wall behind them. Of course, due to some additional width of the baffle, the roll off of the bass is at a lower frequency. .......
176: Planar Speaker Asylum, RE: Small rooms - big Maggies (0.00)
Posted by Roger Gustavsson on 2021-12-30, 01:05:44 (216.158.98.226)
I have used the same set of Tympani IIIA, before and after modification, in two different rooms. The small room was: 380x305x215 cm. The large room was: 600x400x240 cm. The smaller room gave the bette .......
177: Planar Speaker Asylum, RE: my photo gallery here (0.00)
Posted by Roger Gustavsson on 2021-12-26, 00:01:09 (216.158.98.226)
So that is a "kitty corner" setup? Would not diagonally across the room be a better word? .......
178: Planar Speaker Asylum, RE: +1 recommendation (0.00)
Posted by Roger Gustavsson on 2021-12-21, 09:57:59 (216.158.98.226)
Stroemberg, we from Sweden have known this about soft feet for 30 years now. .......
179: Planar Speaker Asylum, RE: MUG (0.00)
Posted by Roger Gustavsson on 2021-12-21, 02:05:49 (216.158.98.226)
They are in parallel, http://www.integracoustics.com/MUG/MUG/tweaks/mikebarney/Tympani-4a_xo.gif .......
180: Planar Speaker Asylum, RE: MUG (0.00)
Posted by Roger Gustavsson on 2021-12-19, 01:16:20 (216.158.98.226)
The wiring, https://1drv.ms/b/s!AvzjTm87GsmDsAKQrMYynaDD4oDA?e=OaMyZN It shows the first version of the IVa, the one that came with the thin ribbon foil (3 Ohm). As this often broke, it was replaced w .......
181: Planar Speaker Asylum, RE: New Planar Speaker (0.00)
Posted by Roger Gustavsson on 2021-12-18, 06:04:15 (216.158.98.226)
Not really new, from 2017. Isn't Clarisys the Swiss company making spare diaphragms for Apogee? https://clarisysaudio.ch/ .......
182: Planar Speaker Asylum, RE: Location, location, location (0.00)
Posted by Roger Gustavsson on 2021-12-08, 09:59:30 (216.158.98.226)
I have always been puzzled by all this talk about how far away from the wall you need to place speakers like Magnepans. It is just as important where you have your listen seat. Of course, the whole ro .......
183: Planar Speaker Asylum, RE: Any experience with Maggie GR Research upgrades? (0.00)
Posted by Roger Gustavsson on 2021-12-08, 03:56:19 (216.158.98.226)
If you like them as they are, you will certainly hear a different sound after that modification. If you like them then is another question. .......
184: Planar Speaker Asylum, RE: Magnepan MG-1 Capacitor (0.00)
Posted by Roger Gustavsson on 2021-12-06, 06:59:27 (216.158.98.226)
There are two schematics, http://www.integracoustics.com/MUG/MUG/tweaks/index.html I think the improved version is a later one and it has a 20 µF capacitor (maybe it is like 12+8). .......
185: Planar Speaker Asylum, RE: Marchand XM26 ... (0.00)
Posted by Roger Gustavsson on 2021-12-06, 00:07:10 (216.158.98.226)
The external crossover for the MG-20 looks like this: .......
186: Planar Speaker Asylum, RE: Magnepan 3.6R dead midranges (0.00)
Posted by Roger Gustavsson on 2021-11-30, 00:58:02 (216.158.98.226)
How old are your 3.6? After many years of use the wiring on the diaphragm will deteriorate and may break. .......
187: Planar Speaker Asylum, RE: "and biamping just to see how it sounds" ... (0.00)
Posted by Roger Gustavsson on 2021-11-09, 02:50:21 (216.158.98.226)
SteveJewels wrote: " I already built a new passive crossover the the mid to tweeter." Series or parallel mid to tweeter crossover? Are you willing to show us? .......
188: Planar Speaker Asylum, RE: "and biamping just to see how it sounds" ... (0.00)
Posted by Roger Gustavsson on 2021-11-09, 00:10:21 (216.158.98.226)
Andy, there is no external crossover, it is all internal in the 3.7/3.7i. .......
189: Planar Speaker Asylum, What problem is a filled hollow aluminum structure meant to solve? (0.00)
Posted by Roger Gustavsson on 2021-11-02, 13:51:31 (84.173.177.4)
I recommend reading: https://tinyurl.com/dc7n9rkw https://tinyurl.com/h7yxx8uf https://tinyurl.com/cputuabm https://tinyurl.com/4jp9xkyw https://tinyurl.com/uu6a4mdr https://tinyurl.com/nyfhs3zk ::: T .......
190: Planar Speaker Asylum, RE: "What Maggie tweeters (from which speakers) would be good candidates for this project?" ... (0.00)
Posted by Roger Gustavsson on 2021-10-21, 04:53:18 (216.158.98.226)
I would not let them go any lower, 4 kHz or above is where they sound less stressed and probably last longer too. .......
191: Planar Speaker Asylum, RE: Tympani IV rewire (0.00)
Posted by Roger Gustavsson on 2021-10-18, 06:31:47 (216.158.98.226)
Was that Gary Edwards? I have dealt with him a couple of times. .......
192: Planar Speaker Asylum, RE: Tympani IV rewire (0.00)
Posted by Roger Gustavsson on 2021-10-08, 00:05:12 (216.158.98.226)
So it will be possible to buy the wires from Magnepan even in the future? .......
193: Planar Speaker Asylum, RE: Tympani IV rewire (0.00)
Posted by Roger Gustavsson on 2021-10-05, 23:44:56 (216.158.98.226)
The manual, https://1drv.ms/b/s!AvzjTm87GsmDriEUnidSM-1qm-nr?e=NVpDoL .......
194: Planar Speaker Asylum, RE: Tympani IV rewire (0.00)
Posted by Roger Gustavsson on 2021-10-05, 05:38:02 (216.158.98.226)
Interesting! .......
195: Planar Speaker Asylum, RE: Tympani IV rewire (0.00)
Posted by Roger Gustavsson on 2021-10-05, 00:10:25 (216.158.98.226)
The company I contacted told me the minimum order was 1152 kg! .......
196: Planar Speaker Asylum, RE: Tympani IV rewire (0.00)
Posted by Roger Gustavsson on 2021-10-04, 08:01:14 (216.158.98.226)
I have also contacted a company near me (Europe) but I know from earlier that it use to be difficult to get small quantities. AWG 25 is used for the basses of many Tympanis (ID, IV and IVa). ::: TOPIC .......
197: Planar Speaker Asylum, RE: Tympani IV rewire (0.00)
Posted by Roger Gustavsson on 2021-10-04, 07:16:52 (216.158.98.226)
What a pity! That will make it difficult to restore old Magnepan speakers. Maybe it has something to do with this? https://www.audioasylum.com/cgi/vt.mpl?f=mug&m=246672 .......
198: Planar Speaker Asylum, RE: Tympani IV rewire (0.00)
Posted by Roger Gustavsson on 2021-10-04, 01:28:26 (216.158.98.226)
Magnepan prefer calling them! Ask for the service department. They do not show an E-Mail address but they have several. I know of no other source for the coated (insulated) aluminium wire they use but .......
199: Planar Speaker Asylum, RE: Magnepan 1.7 or 3.6 -small room! (0.00)
Posted by Roger Gustavsson on 2021-08-12, 04:50:51 (216.158.98.226)
There is a dealer listed for Italy, https://www.proaudioitalia.it/ .......
200: Planar Speaker Asylum, RE: Magnepan 1.7 or 3.6 -small room! (0.00)
Posted by Roger Gustavsson on 2021-08-07, 10:05:54 (216.158.98.226)
I have had my Tympani IIIA in room measuring 380x305 cm, height 215 cm. Tympani IIIA is about 300 cm wide, minimum. Had them placed in front of the long wall. Sure, there was a tiny sweetspot but it w .......
201: Planar Speaker Asylum, RE: That's not it (0.00)
Posted by Roger Gustavsson on 2021-08-05, 02:14:41 (152.89.163.100)
I know that we have different standards. It is even different within the EU. In Sweden we may use on-wall and inside cabinets without conduits. The rest is in conduits with a suitable number of wires, .......
202: Planar Speaker Asylum, RE: That's not it (0.00)
Posted by Roger Gustavsson on 2021-08-04, 09:32:26 (216.158.98.226)
A cabling like that, we call a rats nest in my country... We need to run our in-wall cables through tubing. It seems you have a rather low ceiling. .......
203: Planar Speaker Asylum, RE: Would agree. Sure wish they'd bring back something like the 2.5R! (0.00)
Posted by Roger Gustavsson on 2021-08-04, 09:22:09 (216.158.98.226)
I think the 1.7 and 3-series will fit the same size of rooms. The 2.5 is as large as the 3-series and is very similar in terms of what room they will fit. .......
204: Planar Speaker Asylum, RE: Magnepan 1.7 or 3.6 -small room! (0.00)
Posted by Roger Gustavsson on 2021-08-02, 08:07:06 (216.158.98.226)
I have a pair of 3.6 with an active crossover in place of the external passive crossover and of course, 4 channels of amplification. My room is 410x515 cm. I have the 3.6 on the short wall, rather clo .......
205: Planar Speaker Asylum, RE: How far do you sit from the 6 foot Magnepans? (0.00)
Posted by Roger Gustavsson on 2021-07-03, 00:35:35 (216.158.98.226)
The sweet spot is very limited. I have my 3.6 about 4 meters/13 feet from the listening position. The distance between the speakers are about 2.5 meters/8.25 feet, tweeters in and angled towards the l .......
206: Planar Speaker Asylum, RE: Tympani IVa refurb project completed (0.00)
Posted by Roger Gustavsson on 2021-07-01, 06:47:10 (216.158.98.226)
Impressive work! Myself, I would have gone for an active crossover in place of the passive external crossover. It opens up a few more options like eq/adaptation to the room and it also raises the eff .......
207: Planar Speaker Asylum, RE: Simple easy question about the Maggie XO-1 (0.00)
Posted by Roger Gustavsson on 2021-06-12, 06:28:48 (216.158.98.226)
Vulcan wrote: "Does the XO-1 separate line-in signal into Bass and MidTr?" No, it does not. What model of Magnepan are you using? Here a few pictures of the XO-1: If you solder in a suitabl .......
208: Planar Speaker Asylum, RE: Simple easy question about the Maggie XO-1 (0.00)
Posted by Roger Gustavsson on 2021-06-11, 08:44:04 (216.158.98.226)
No. Remember the XO-1 is only two potentiometers for the low pass section and two capacitors of choice for cutting off the lows from the high pass section. I have a stereo amp behind each MG 3.6, fee .......
209: Planar Speaker Asylum, RE: Tweeter and supertweeter burned on 1.7 (0.00)
Posted by Roger Gustavsson on 2021-05-24, 04:45:26 (216.158.98.226)
I have bought it several times directly from Magnepan in the USA, not through the european distributor. The glue can be bought in Europe in 1 L cans, https://multimedia.3m.com/mws/media/913518J/3m-sc .......
210: Planar Speaker Asylum, RE: Tweeter and supertweeter burned on 1.7 (0.00)
Posted by Roger Gustavsson on 2021-05-22, 05:06:33 (216.158.98.226)
Branko wrote: "The importer is willing to sell me the foil for 400 euro and the Magnepan special glue for 50 euro small can." That price is ridiculous! Foil and glue is not that expensive directly fr .......
211: Planar Speaker Asylum, RE: Posted somewhere? (0.00)
Posted by Roger Gustavsson on 2021-05-20, 09:48:08 (216.158.98.226)
I have some pictures from Andy. Maybe he will show them here. .......
212: Planar Speaker Asylum, RE: Posted somewhere? (0.00)
Posted by Roger Gustavsson on 2021-05-20, 01:26:07 (216.158.98.226)
I have seen pictures of what he will be using, it is not Magnepan but it is an open baffle design that will fit small rooms. .......
213: Planar Speaker Asylum, RE: That's what I'm assuming... (0.00)
Posted by Roger Gustavsson on 2021-05-19, 10:38:13 (216.158.98.226)
Andy is downsizing. .......
214: Planar Speaker Asylum, RE: What about phasing when the tweeter is backwards? ... (0.00)
Posted by Roger Gustavsson on 2021-05-16, 10:32:18 (216.158.98.226)
The frequency response shown is for the tweeter only. If you flip the tweeters you must change the polarity of the them. Best done at the crossover. .......
215: Planar Speaker Asylum, RE: What about phasing when the tweeter is backwards? (0.00)
Posted by Roger Gustavsson on 2021-05-15, 04:28:00 (216.158.98.226)
The graph is showing the response at a distance of only 11 cm! At greater distances it is different. .......
216: Planar Speaker Asylum, RE: Yes ... (0.00)
Posted by Roger Gustavsson on 2021-05-15, 01:21:13 (216.158.98.226)
In the original baffles there is a sort of waveguide due to the rails left and right of the ribbon which sits a bit deep in there. In theory, there will be some diffraction. On the back there is an al .......
217: Planar Speaker Asylum, RE: What is the red goop in the tube ??? (0.00)
Posted by Roger Gustavsson on 2021-05-09, 01:46:01 (216.158.98.226)
It looks like Loctite 268. https://www.henkel-adhesives.com/us/en/product/threadlockers/loctite_268.html .......
218: Planar Speaker Asylum, from the factory (0.00)
Posted by Roger Gustavsson on 2021-05-08, 05:52:34 (216.158.98.226)
This is what they do: The early Tympanis were just glue no buttons. .......
219: Planar Speaker Asylum, RE: "Was it just the ends of your bars that became loose " ... (0.00)
Posted by Roger Gustavsson on 2021-05-08, 02:54:53 (216.158.98.226)
I have some humps in the response of my 3.6 (80-90 Hz). I have located it to the two buttons on top of the bass driver holding the Mylar to the backplate. These can come lose, it is just a screw. Mine .......
220: Planar Speaker Asylum, RE: "cross bars at 2 or 3 locations to the rear of the panel" ... (0.00)
Posted by Roger Gustavsson on 2021-05-01, 08:11:19 (216.158.98.226)
andyr wrote: "I would've thought 4 positions would be necessary, for the stiffness & length of the mid panel? And presumably these crossbars should not be made of steel?" Why not steel if stiffness i .......
221: Planar Speaker Asylum, RE: Man, I totally forgotten that one.. (0.00)
Posted by Roger Gustavsson on 2021-04-10, 08:58:04 (216.158.98.226)
I think there are quite a few faults in the specifications of Magnepan speakers. At some period there were changes without re-naming the models, like early Tympanis. .......
222: Planar Speaker Asylum, RE: Shirley the pole piece *needs* to be bowed ... (0.00)
Posted by Roger Gustavsson on 2021-04-10, 07:41:18 (216.158.98.226)
Please, notice that if you try to straiten the perforated sheet metal, there is a risk the Mylar stretches or even break! The T-IVa mids are the only Magnepan that I have with a curved back plate. :: .......
223: Planar Speaker Asylum, RE: Help needed: Tympani IVa midrange driver problem (0.00)
Posted by Roger Gustavsson on 2021-04-10, 01:25:42 (216.158.98.226)
Temperature is a factor to keep in mind. If one of the speakers stands in a warmer spot, it will probably sound different to the one in a cold spot. .......
224: Planar Speaker Asylum, RE: Help needed: Tympani IVa midrange driver problem (0.00)
Posted by Roger Gustavsson on 2021-04-09, 06:35:41 (216.158.98.226)
My mids differ in output by about 3 dB. The distance Mylar to magnets is too large in one of them. I will rebuild mine, sand down the spacers so a flat surface will face the Mylar in order to make a s .......
225: Planar Speaker Asylum, RE: Help needed: Tympani IVa midrange driver problem (0.00)
Posted by Roger Gustavsson on 2021-04-09, 00:32:47 (216.158.98.226)
Mine looks like this, about 1 mm warp/curve/bend. .......
226: Planar Speaker Asylum, RE: Help needed: Tympani IVa midrange driver problem (0.00)
Posted by Roger Gustavsson on 2021-04-08, 13:09:54 (216.158.98.226)
I think that is how they all are curved on the back from the factory. It is also the reason to why the Mylar leave the double-sided tape. Ask Magnepan if this is normal. I think mine, Josh's and Andy' .......
227: Planar Speaker Asylum, RE: "the bad channel exhibits a suck-out in the midrange relative to the woofer" ... (0.00)
Posted by Roger Gustavsson on 2021-04-08, 08:41:27 (216.158.98.226)
The midrange driver without the crossover should measure about 3.6 Ohms. There have been a guy who let Magnepan re-wire the mids of the 3.6 with foil conductors. I did it myself, it was the smallest c .......
228: Planar Speaker Asylum, RE: Quasi-ribbon conversion? (0.00)
Posted by Roger Gustavsson on 2021-04-01, 03:16:32 (216.158.98.226)
Yes, they are my foil converted T-IVa mids. I will have to modify them one more time. If your T-IVa mids are buzzing, you need to rebuild them, new Mylar and re-wiring. Maybe, you can sell them to me? .......
229: Planar Speaker Asylum, RE: Quasi-ribbon conversion? (0.00)
Posted by Roger Gustavsson on 2021-03-31, 03:40:17 (216.158.98.226)
@Steve, what about your TIVa mids, do they have curved back plates? Like this: Is the Mylar still attached at the foam tape strips? If not, the performance is really degraded. This seems to be com .......
230: Planar Speaker Asylum, RE: Quasi-ribbon conversion? (0.00)
Posted by Roger Gustavsson on 2021-03-29, 11:56:36 (216.158.98.226)
I would say no. The foil conductors will limit the maximum excursion of the woofers, there will less Mylar that can tension. The foil will not tension at all. If low bass is important, I would not use .......
231: Planar Speaker Asylum, RE: Speaker measurements (0.00)
Posted by Roger Gustavsson on 2021-03-26, 01:32:32 (216.158.98.226)
@ neolith, you did not even try to get the 3.7i in your new room? My room is 13.5x17 and fits my 3.6 perfectly. Of course, they dominate my room but I got my wife's approval 10 years ago. "It is the .......
232: Planar Speaker Asylum, RE: Help with Beveridge direct-drive amplifier oscillation (0.00)
Posted by Roger Gustavsson on 2021-03-22, 01:16:25 (216.158.98.226)
Have you contacted Beveridge? They are still offering these high voltage amplifiers. .......
233: Planar Speaker Asylum, RE: "That's an interesting experiment" ... (0.00)
Posted by Roger Gustavsson on 2021-03-13, 07:06:57 (216.158.98.226)
ColinB wrote: "I once restored a full set of Tympanis IVas in 2012. I had the full set with all the original bass panels with Mylar in tact (the seller delivered them to me. IIRC you had some that got .......
234: Planar Speaker Asylum, RE: No Socks (0.00)
Posted by Roger Gustavsson on 2021-03-06, 03:44:15 (216.158.98.226)
Andy, this is the normal way for the 3.6, Mylar in front. .......
235: Planar Speaker Asylum, RE: No Socks (0.00)
Posted by Roger Gustavsson on 2021-03-05, 09:24:56 (216.158.98.226)
Well, is the wiring really straight and well layed? The adhesive seems to be unevenly spread out. .......
236: Planar Speaker Asylum, RE: No Socks (0.00)
Posted by Roger Gustavsson on 2021-03-05, 08:38:56 (216.158.98.226)
Shumi, I am still surprised that these were refurbished by Magnepan. The finish is very much DIY. .......
237: Planar Speaker Asylum, RE: Magnepan 30.7 For Condo's page on their website (0.00)
Posted by Roger Gustavsson on 2021-03-05, 02:33:14 (216.158.98.226)
I could see that page right now. It is not new information. .......
238: Planar Speaker Asylum, RE: New ribbon tweeters (0.00)
Posted by Roger Gustavsson on 2021-02-28, 02:44:15 (216.158.98.226)
2.3 Ohm is a tough load for most amplifiers and there use to be an increase in distorsion. .......
239: Planar Speaker Asylum, RE: New ribbon tweeters (0.00)
Posted by Roger Gustavsson on 2021-02-27, 00:04:32 (216.158.98.226)
SteveJewels wrote: "My new tweeters arrived today. The enclosed paperwork says 60" and they measure 2.3 ohm." That would mean you will need the 1 Ohm series resistor if it was not there already. ::: T .......
240: Planar Speaker Asylum, RE: Replacing Ribbon Tweeters from older to new ones ... (0.00)
Posted by Roger Gustavsson on 2021-02-26, 03:13:42 (216.158.98.226)
No, they are not thinner, they are narrower, that raises the resistance. .......
241: Planar Speaker Asylum, RE: Material for Razoring Maggies (0.00)
Posted by Roger Gustavsson on 2021-02-22, 05:06:47 (216.158.98.226)
This is what Ronnhedh presented (hope he won't mind, pictures are not visable in the original thread anymore): Increased efficiency in the low-mid-range is obtained with a stiffer frame This measu .......
242: Planar Speaker Asylum, RE: Material for Razoring Maggies (0.00)
Posted by Roger Gustavsson on 2021-02-21, 05:04:02 (216.158.98.226)
Still waiting for some kind of measurements before and after. That goes for not only razoring but also for hardwood frames. Alumiminum hollow profiles filled with blasting sand shows a clear improveme .......
243: Planar Speaker Asylum, RE: I have both the 3.6R and the 1.6QR...- (0.00)
Posted by Roger Gustavsson on 2021-02-19, 07:56:56 (216.158.98.226)
"Α have a pair of Magnepan 1.20" Never heard about a Magnepan 1.20. Maybe it is MG-12? .......
244: Planar Speaker Asylum, RE: no (0.00)
Posted by Roger Gustavsson on 2021-02-11, 10:00:23 (216.158.98.226)
@ SteveJewels Your picture shows a Tympani IVa with a higher serial number, probably with the 2 Ohm ribbon and a 1 Ohm resistor behind the panel. You can change that resistor to a higher value. It is .......
245: Planar Speaker Asylum, RE: no (0.00)
Posted by Roger Gustavsson on 2021-02-11, 06:20:10 (216.158.98.226)
0.5 mH would start rolling off at about 1 kHz in the case of the ribbon tweeter. It is below the range where the ribbon operates. Do you have the 2 Ohm ribbon + series resistor in your T-IVa? ::: TOP .......
246: Planar Speaker Asylum, RE: "some mids and vocals have taken on a little stridency/harshness" ... (0.00)
Posted by Roger Gustavsson on 2021-02-11, 02:10:59 (216.158.98.226)
No need to buy cables to bypass the steel jumpers, it can be bypassed on the back of the connector plate. It is also possible to crimp or solder all wiring to the cables coming from the crossover, byp .......
247: Planar Speaker Asylum, RE: that's on the magnet pole piece, not the driver (0.00)
Posted by Roger Gustavsson on 2021-02-05, 09:52:00 (216.158.98.226)
Magnepan used/uses different methods for tuning the resonant behaviour. A rectangular driver without "buttons" need a varying tuning top-to-bottom. That can be found in some Tympani bass drivers. Othe .......
248: Planar Speaker Asylum, RE: A mystery solved? (0.00)
Posted by Roger Gustavsson on 2021-02-05, 09:07:42 (216.158.98.226)
I talked to a guy with 3.7 some years ago. 3.7 is without tape behind the mids. He had 3.6 earlier and found the 3.7 to be a bit thin. A few days ago another reported that about his 3.7i vs. 1.6. Is t .......
249: Planar Speaker Asylum, RE: A mystery solved? (0.00)
Posted by Roger Gustavsson on 2021-02-04, 23:52:15 (216.158.98.226)
There is tape on the back of the mid of the 3.6 as well. My T-IVa mids had some thick felt on some parts on there backs. .......
250: Planar Speaker Asylum, RE: Tympani IVa active crossover. (0.00)
Posted by Roger Gustavsson on 2021-02-04, 06:39:41 (216.158.98.226)
This is what it looked like in reality: .......
251: Planar Speaker Asylum, RE: Tympani IVa active crossover. (0.00)
Posted by Roger Gustavsson on 2021-02-03, 06:50:03 (216.158.98.226)
I know that! Still, it is good pratice to avoid them directly in the signal path if you can. .......
252: Planar Speaker Asylum, RE: Tympani IVa active crossover. (0.00)
Posted by Roger Gustavsson on 2021-02-03, 03:48:37 (216.158.98.226)
Electrolytics in series with the signal is not what I want, at least not if it to tranfer high frequency signals. I think they cannot be dismissed as the power supply is single ended. It is possible t .......
253: Planar Speaker Asylum, RE: Tympani IVa active crossover. (0.00)
Posted by Roger Gustavsson on 2021-02-01, 05:56:29 (216.158.98.226)
As the power supply is single ended, I think there must be DC-blocking capacitors on in- and outputs. I häve the matched set of J113 and resistors. All kinds of slope with 6-12-18-34 dB/octave can be .......
254: Planar Speaker Asylum, RE: Tympani IVa active crossover. (0.00)
Posted by Roger Gustavsson on 2021-01-31, 00:13:55 (216.158.98.226)
Well, I have two kits of that First Watt/Pass 6-24 crossover, still unused. What I do not like is the electrolytic capacitors on in- and output, at least not on the high frequency section. I recommend .......
255: Planar Speaker Asylum, RE: Crossover upgrade for Tympani IVa (0.00)
Posted by Roger Gustavsson on 2021-01-24, 00:58:28 (216.158.98.226)
Andy, is it not the electrical response of the crossover you show us? I think you have forgotten the series resistor for the 2 Ohm ribbon tweeter. If you run without it, there will be an increased lev .......
256: Planar Speaker Asylum, T-IVa crossover(s) (0.00)
Posted by Roger Gustavsson on 2021-01-21, 01:30:31 (216.158.98.226)
As we are discussing the Tympani IVa not the MG-III or MG-IIIa, maybe we should let them out here. Magnepan does not use textbook filters like 18 or 12 dB/octave. About the T-IVa being crossed over l .......
257: Planar Speaker Asylum, RE: "Well, the original ribbon that I have is 3 Ohm without any resistor." ... (0.00)
Posted by Roger Gustavsson on 2021-01-20, 03:21:16 (216.158.98.226)
The very thin original 3 Ohm ribbons were very fragile. Even though mine survied the Atlantic crossing, one of them ripped later. I bought the replacement kit from Magnepan, the 2 Ohm+resistor+glue+sh .......
258: Planar Speaker Asylum, T-IVa ribbons (0.00)
Posted by Roger Gustavsson on 2021-01-20, 02:18:35 (216.158.98.226)
Well, the original ribbon that I have is 3 Ohm without any resistor. Was the T-IVa released before the MG-IIIa? I also have the replacement ribbon, the 2 Ohm, as this is the only spare Magnepan have f .......
259: Planar Speaker Asylum, RE: Look at MUG For the III and IIIa crossovers and (0.00)
Posted by Roger Gustavsson on 2021-01-19, 08:56:57 (216.158.98.226)
Well, I bought mine as used and I think there was hinges on all panels but eight feet. .......
260: Planar Speaker Asylum, RE: Look at MUG For the III and IIIa crossovers and (0.00)
Posted by Roger Gustavsson on 2021-01-19, 01:47:43 (216.158.98.226)
It is always a good thing to get famliar with these speakers as they are before doing anything to them. I would advice to have the mid/tweeter panels detached from the bass panels (require extra feet) .......
261: Planar Speaker Asylum, RE: No immediate info to give, but CONGRATS!!! (0.00)
Posted by Roger Gustavsson on 2021-01-16, 00:47:50 (216.158.98.226)
Scintilla is really a different load to Duetta! .......
262: Planar Speaker Asylum, RE: Wrong approach! ... (0.00)
Posted by Roger Gustavsson on 2021-01-12, 10:18:39 (216.158.98.226)
The pins are not solely responsible for any degradation. It is the number of metal-to-metal joints all the way from the drivers to your amps speaker terminals. A large number of these can be "bypassed .......
263: Planar Speaker Asylum, RE: Wrong approach! ... (0.00)
Posted by Roger Gustavsson on 2021-01-12, 03:54:15 (216.158.98.226)
There are far too many connectors with these. The many joints can be reduced drastically. Too often we see people who substitute the short links with cable and another set of connectors. You can have .......
264: Planar Speaker Asylum, RE: 3.6R Repair (0.00)
Posted by Roger Gustavsson on 2021-01-05, 10:47:18 (216.158.98.226)
Can the DAP Wellwood ever be removed if needed (in case the wiring start breaking)? .......
265: Planar Speaker Asylum, RE: 3.6R Repair (0.00)
Posted by Roger Gustavsson on 2021-01-05, 02:04:20 (216.158.98.226)
skypop, Are you doing a complete rewiring or just a repair of the places where the wire has come lose? The 3M 30NF is waterbased, do not allow freezing. .......
266: Planar Speaker Asylum, RE: 3.6R Repair (0.00)
Posted by Roger Gustavsson on 2021-01-04, 03:51:56 (216.158.98.226)
Sending it back to Magnepan is an expensive option. Of course, both speakers need to be fixed. It is quite a job to do this but it can be done with can be done with 3M 30NF (neutral) adhesive. If it i .......
267: Planar Speaker Asylum, RE: Magnepan 3.6 sensitive to different lengths of speaker cables? (0.00)
Posted by Roger Gustavsson on 2021-01-04, 01:42:39 (216.158.98.226)
It is recommended to use same length. You can roll up the cable to shorten it. The increase in inductance is negligible. .......
268: Planar Speaker Asylum, RE: Magnepan MG-IIIA, different versions? (0.00)
Posted by Roger Gustavsson on 2020-12-23, 09:15:19 (216.158.98.226)
The 2 Ohm ribbon was not narrower, just thicker. The narrower one was and still are 3 Ohm. My T-IVa had the very first ribbon, very thin and fragile. One of them is still alive. .......
269: Planar Speaker Asylum, RE: FYI... Tympani 1D spotted on Craigslist PDX (0.00)
Posted by Roger Gustavsson on 2020-12-22, 04:07:16 (216.158.98.226)
Magnepan can rebuild them but it is not that cheap, at least another $2000 plus 2xshipping. I paid about $850 for my ID in Europe in 2018. I have the spares to rebuild them myself. .......
270: Planar Speaker Asylum, RE: FYI... Tympani 1D spotted on Craigslist PDX (0.00)
Posted by Roger Gustavsson on 2020-12-22, 01:05:35 (216.158.98.226)
I doubt they play well. I have a similar set in storage, the wiring on the the basses was dead and one of the tweeters distorted. Price is way too high, that is what a rebuild pair is worth. ::: TOPIC .......
271: Planar Speaker Asylum, RE: Bi-Amping Apogee Full Range (0.00)
Posted by Roger Gustavsson on 2020-12-12, 00:50:34 (216.158.98.226)
The outboard XO-20 passive crossover was an option. .......
272: Planar Speaker Asylum, RE: Bi-Amping Apogee Full Range (0.00)
Posted by Roger Gustavsson on 2020-12-11, 07:46:00 (216.158.98.226)
I think the MG-20 first came without a passive crossover and was intended for an active line level crossover. .......
273: Planar Speaker Asylum, RE: Bi-Amping Apogee Full Range (0.00)
Posted by Roger Gustavsson on 2020-12-03, 06:25:30 (216.158.98.226)
Well, it was Stereoplay that measured this. .......
274: Planar Speaker Asylum, RE: Bi-Amping Apogee Full Range (0.00)
Posted by Roger Gustavsson on 2020-12-02, 13:55:26 (216.158.98.226)
Apogee Duetta and Diva both get increased effiency without their passive crossovers, about 3-4 dB it seems. Even some Magnepan with power hungry low pass crossovers get increased effiency, especially .......
275: Planar Speaker Asylum, RE: "configured by Rich Murray to require bi-wiring" ... (0.00)
Posted by Roger Gustavsson on 2020-12-01, 02:52:20 (216.158.98.226)
Many Apogee performs better with bi-amping via an active crossover. Here is the Fullrange as measured in Stereoplay. http://user.faktiskt.io/RogerGustavsson/Planar%20Speakers/Apogee%20Fullrange.jpg If .......
276: Planar Speaker Asylum, RE: Poof, it's gone. (0.00)
Posted by Roger Gustavsson on 2020-12-01, 02:46:12 (216.158.98.226)
The monolith is now gone. .......
277: Planar Speaker Asylum, RE: Room size for Tympani IVa's (0.00)
Posted by Roger Gustavsson on 2020-11-22, 00:04:12 (216.158.98.226)
That is a very large "cavity" to fill with sound. I am not sure the IVa is capable of that. It will need treatment to get a suitable acoustic for good audio reproduction. .......
278: Planar Speaker Asylum, RE: Several Qs (0.00)
Posted by Roger Gustavsson on 2020-11-16, 11:41:21 (216.158.98.226)
"What's that shiny foil pattern on the back of the scintillas?" It is an resistor of aluminiumfoil for the tweeter. .......
279: Planar Speaker Asylum, RE: Should be, yes (0.00)
Posted by Roger Gustavsson on 2020-11-05, 03:24:53 (216.158.98.226)
A friend made this document on how to change the fabric: https://www.dropbox.com/s/9ubtbv6037t2bq8/WI%20New%20Fabric%20on%20MG%203.docx?dl=0 .......
280: Planar Speaker Asylum, RE: Should be, yes (0.00)
Posted by Roger Gustavsson on 2020-11-03, 05:57:21 (85.188.73.4)
The front is held by the screws on the back. Here a few are marked with a yellow circle. You need to place the speaker on a table, front down, before removing the screws. The cloth is not very robust, .......
281: Planar Speaker Asylum, RE: Should be, yes (0.00)
Posted by Roger Gustavsson on 2020-11-02, 07:08:22 (85.188.73.4)
There is a black sock (visible from the back) that also covers the front. The visible grill on the front is made of two pieces of cloth, available in three different colours. These are not in form of .......
282: Planar Speaker Asylum, RE: Does Magnepan repair delaminating maggies? (0.00)
Posted by Roger Gustavsson on 2020-10-19, 22:50:56 (85.188.73.4)
As your speakers are that old and made before they changed to a different glue, I am not surprised the wire has come lose. If the wiring is still okey it can be reglued with the 3M 30NF waterbased glu .......
283: Planar Speaker Asylum, RE: felt or yarn? THE DEBATE BEGINS (0.00)
Posted by Roger Gustavsson on 2020-10-14, 23:06:49 (85.188.73.4)
I have seen a comment by Jim Winey about some problems in early production causing diffraction around the ribbon tweeter. The response from front and back of the tweeter is different, maybe even more .......
284: Planar Speaker Asylum, RE: Parts Express announces full line of NEO drivers (0.00)
Posted by Roger Gustavsson on 2020-10-12, 01:54:12 (85.188.73.4)
The numbers I listed above seems to be a standard laminate available from many sources. I have a roll of it somewhere. Vapor desposiited Mylar use to have a very thin layer of conductive metal. It wil .......
285: Planar Speaker Asylum, RE: Parts Express announces full line of NEO drivers (0.00)
Posted by Roger Gustavsson on 2020-10-11, 01:00:12 (216.158.98.226)
"The vapor-deposited conductive element does NOT exhibit the delamination the Maggie conductive wires do." Since when do they use vapor-desposited traces? They used a laminate: Foil thickness .00033" .......
286: Planar Speaker Asylum, RE: intentional left vs right difference. (0.00)
Posted by Roger Gustavsson on 2020-10-08, 10:01:25 (216.158.98.226)
These discs are not magnetic, they are plastic. .......
287: Planar Speaker Asylum, RE: "biamp the IIIas they way they should be biamped"! ... (0.00)
Posted by Roger Gustavsson on 2020-09-27, 00:33:33 (216.158.98.226)
That is the B4. I refer to the 6-24XO that is available now as a DIY-project. I mean the internal impedance. The noise level can be influened by it. Good pratice is to stay between 4-15 k for the RC-l .......
288: Planar Speaker Asylum, RE: "biamp the IIIas they way they should be biamped"! ... (0.00)
Posted by Roger Gustavsson on 2020-09-26, 09:01:44 (216.158.98.226)
Yes, there is a DIY project, Pass 6-24XO, that can do more than the textbook slopes. I have two of these boards on my desk. I do not like the electrolytics at in- and output. The impedance could also .......
289: Planar Speaker Asylum, RE: I WAS Bi Amping them (0.00)
Posted by Roger Gustavsson on 2020-09-24, 23:04:01 (85.188.73.4)
JohnKuthe wrote: "Through some type of RCA level two way crossover, but was never happy with their sound." Magnepan use to have non-text book crossovers and off the shelf active crossovers may not be .......
290: Planar Speaker Asylum, RE: Very interesting - thanks, Roger nt (0.00)
Posted by Roger Gustavsson on 2020-09-14, 00:58:58 (85.188.73.4)
My swedish friend, who did a complete modifaction of his 3.6 , also made a measurement of the ribbon tweeters both ways. His baffles have a less deep cavity in front of the ribbon, 6 mm or so where th .......
291: Planar Speaker Asylum, RE: Were you able to hear any differences by doing this ? ... (0.00)
Posted by Roger Gustavsson on 2020-09-13, 06:52:11 (216.158.98.226)
There is a difference in response from the front and the rear, maybe even more so in the original baffle. The cavity in front of the ribbon does influence the response and there are two layers of clot .......
292: Planar Speaker Asylum, RE: it has the Quasi ribbon tweeter so (0.00)
Posted by Roger Gustavsson on 2020-09-09, 06:31:45 (85.188.73.4)
I would be happy with just two MG 20.1 panels without the rest. Active bi or tri amping with an active crossover and some baffles and you are there. .......
293: Planar Speaker Asylum, RE: it has the Quasi ribbon tweeter so (0.00)
Posted by Roger Gustavsson on 2020-09-08, 09:28:45 (216.158.98.226)
I guess it is not possible to get another panel from Magnepan? .......
294: Planar Speaker Asylum, RE: MG IIIa (0.00)
Posted by Roger Gustavsson on 2020-09-07, 09:46:38 (216.158.98.226)
mondial wrote: " the parts for the external crossover box should be upgraded to better capacitors" Even better to use an active crossover and use 4 channels of power amplification. Maybe this, https: .......
295: Planar Speaker Asylum, RE: Yes, it is (strange) ... (0.00)
Posted by Roger Gustavsson on 2020-09-01, 07:19:58 (216.158.98.226)
Embarrassing .... being a pro in measuring. The old cages are 1524, the later ones are 1540 mm. I took for granted the later ones had the covers over the edge of the cage to cover the connections. ::: .......
296: Planar Speaker Asylum, RE: Great - thanks, Tim ... (0.00)
Posted by Roger Gustavsson on 2020-08-31, 23:35:06 (85.188.73.4)
This is strange. Last time I measured them the were same length, T-IVa amd MG 3.6. I will have to check once more. .......
297: Planar Speaker Asylum, RE: Thanks very much, Roger! ... (0.00)
Posted by Roger Gustavsson on 2020-08-31, 08:14:54 (216.158.98.226)
Above and below the cage, there need to be some space for the connections. Here is a picture showing the MG 3.6 upper connection. Here a spare set I have. Here the ones of the T-IVa (hardly vi .......
298: Planar Speaker Asylum, RE: Thanks very much, Roger! ... (0.00)
Posted by Roger Gustavsson on 2020-08-31, 04:31:23 (85.188.73.4)
Magnepan Ribbon Tweeter .......
299: Planar Speaker Asylum, RE: Thanks very much, Roger! ... (0.00)
Posted by Roger Gustavsson on 2020-08-31, 02:53:55 (85.188.73.4)
The ribbon is suspended in the same way between the magnets but I think the termination at the ends is different and need a bit more space. I have measured the Cages and they are the same for T-IVa an .......
300: Planar Speaker Asylum, RE: Length of the newer (3 ohm) ribbon cage (0.00)
Posted by Roger Gustavsson on 2020-08-30, 23:18:16 (85.188.73.4)
As I have both, the ribbon cages are the same. Both measures 60" (1524 mm). The magnets are thicker and the ribbon itself is narrower in the newer ones. The attachment of the ribbon element is differe .......
301: Planar Speaker Asylum, RE: I don't understand why current is not the issue? (0.00)
Posted by Roger Gustavsson on 2020-08-10, 11:50:29 (216.158.98.226)
Ohm's Law. If the load is almost resistive, your speakers will not draw a lot of current if they are 4-5 Ohm (like most Magnepans). 400 W in 4 Ohm is 10 Ampere, still not very much. .......
302: Planar Speaker Asylum, RE: The Adcom Amps Were/Are Great... (0.00)
Posted by Roger Gustavsson on 2020-08-10, 10:38:25 (216.158.98.226)
As Magnepan speakers are close to resistive loads, current will not be much of an issue. !00 W in 4 Ohm will be 5 Amperes. .......
303: Planar Speaker Asylum, RE: It's not the watts, it's current.... (0.00)
Posted by Roger Gustavsson on 2020-08-07, 09:18:34 (216.158.98.226)
I have used my 3.6 with a 2x45 W (4 Ohm) receiver. Room is 21 m2. It is a surprise how little power that goes inte them with todays loudnessraced music. Very good recordings with good dynamics is a di .......
304: Planar Speaker Asylum, RE: Mono blocks behind speakers? (0.00)
Posted by Roger Gustavsson on 2020-08-03, 10:28:09 (216.158.98.226)
I have a stereo power amp behind each speaker. .......
305: Planar Speaker Asylum, RE: "Where do you set the volume in your new setup" ... (0.00)
Posted by Roger Gustavsson on 2020-07-31, 06:34:18 (84.173.182.17)
There is a discussion about the E30 on a swedish forum right now. Some are a bit worried about the reconstruction filter, it is not very good. .......
306: Planar Speaker Asylum, RE: Yes, I use a miniDSP to send (80Hz to subs and .80Hz to Maggies ... (0.00)
Posted by Roger Gustavsson on 2020-07-31, 01:37:22 (84.173.182.17)
Andy: Where do you set the volume in your new setup, nanoDIGI+ 4xTopping E30? A friend recommend the miniDSP miniSHARC + some DACs. .......
307: Planar Speaker Asylum, RE: Great result ... (0.00)
Posted by Roger Gustavsson on 2020-07-12, 11:40:17 (216.158.98.226)
Not using the bass drivers of the 3.6 or the 20.1? A bit of waste to me. I think it would be okey to crossover at 80 Hz or so for the 3.6 and a bit lower for the 20.1. .......
308: Planar Speaker Asylum, RE: Great result ... (0.00)
Posted by Roger Gustavsson on 2020-07-12, 08:58:29 (216.158.98.226)
If you have the 3.6 high passed at 200 Hz, you are hardly using the bass drivers of them as the mids are used to 200 Hz (if you have not chosen a different cut-off). .......
309: Planar Speaker Asylum, RE: HiFiNews Apogee Caliper May 1, 1987 (0.00)
Posted by Roger Gustavsson on 2020-07-03, 09:10:13 (216.158.98.226)
Apogee improved their speakers over time. Later Duetta Signature or Diva are really nice. A friend of mine have restored a pair of Duettas last year, sounds great, far better then new. He will continu .......
310: Planar Speaker Asylum, RE: Yes, I use a miniDSP to send (80Hz to subs and .80Hz to Maggies ... (0.00)
Posted by Roger Gustavsson on 2020-07-03, 00:45:14 (216.158.98.226)
@Andy What about analog sources when you go for a nanoDIGI? I remember you had some special turntable. .......
311: Planar Speaker Asylum, RE: Digital Crossover for 1.7's - Needed? (0.00)
Posted by Roger Gustavsson on 2020-06-28, 01:23:20 (216.158.98.226)
Why a digital crossover? It can be an analog at line level too. It would save you an ADC. Digital crossovers need to have an ADC and at least 4 DAC:s. Of course, the basses (at least two) must be good .......
312: Planar Speaker Asylum, RE: What causes panel flapping? (0.00)
Posted by Roger Gustavsson on 2020-06-27, 07:06:51 (216.158.98.226)
There will also be a noise if the wires or the timing buttons are lose. My 3.6 makes a noise while playing low bass at high levels. The smaller models have a rather high tuning which may be hit by som .......
313: Planar Speaker Asylum, RE: Why are there 2 layers? (0.00)
Posted by Roger Gustavsson on 2020-06-19, 00:57:41 (216.158.98.226)
I have made a PDF. Recieved an instruction of an audio buddy how to replace the fabric of the front cover. Is there a place here where it can be uploaded? You can also send me a PM with your E-Mail-Ad .......
314: Planar Speaker Asylum, RE: Newbie - 2.7QR Question (0.00)
Posted by Roger Gustavsson on 2020-06-17, 05:44:01 (85.188.73.3)
Here is Picture of what makes up the front cover: .......
315: Planar Speaker Asylum, RE: Newbie - 2.7QR Question (0.00)
Posted by Roger Gustavsson on 2020-06-16, 09:38:13 (216.158.98.226)
There are two grill cloths. The black one you see from the back is a "sock". The other one at the front is not. I have an instruction somewhere how to replace the one at the front. I think the black s .......
316: Planar Speaker Asylum, RE: Sure, Roger ... (0.00)
Posted by Roger Gustavsson on 2020-06-02, 08:11:03 (216.158.98.226)
Magnepan 3.6 and 3.7 are voiced with their crossovers. If you switch the crossovers between them they will still sound a bit different. If you want to know what a series and parallel crossover sounds .......
317: Planar Speaker Asylum, RE: Thanks, Dave ... (0.00)
Posted by Roger Gustavsson on 2020-06-01, 07:30:43 (216.158.98.226)
Serial vs, parallel: https://sound-au.com/parallel-series.htm In the case of the 1.6 vs. 1.7, there is a different concept with the super tweeter. You need to compare speakers were the only difference .......
318: Planar Speaker Asylum, RE: Take this with a whole teaspoon of salt. (0.00)
Posted by Roger Gustavsson on 2020-05-31, 10:20:00 (216.158.98.226)
The 1.7 seems to dip to Ohm at higher frequencies. The 1.6 is a far easier load. .......
319: Planar Speaker Asylum, RE: 1.7 vs. 1.7i How to tell the difference? (0.00)
Posted by Roger Gustavsson on 2020-05-29, 09:41:52 (216.158.98.226)
No one seems to know what the "i" stands for and Magnepan will not tell you either. Same goes for the 3.7 vs. 3.7i. .......
320: Planar Speaker Asylum, RE: 1.7 vs. 1.7i How to tell the difference? (0.00)
Posted by Roger Gustavsson on 2020-05-29, 07:17:38 (216.158.98.226)
Are the crossovers different at all? There are no ribbon drivers in the 1.7 or 1.7i, it is all "quasi ribbons" (flat wire on Mylar). .......
321: Planar Speaker Asylum, RE: Magneplanar quasi-ribbon question (0.00)
Posted by Roger Gustavsson on 2020-05-21, 10:05:40 (216.158.98.226)
DrChaos wrote: "The QR midrange will be clearer than the round wire, probably as the foil is more firmly embedded than the glued on wire (glue + wire will have some mechanical flexibility) and lower m .......
322: Planar Speaker Asylum, RE: Neolith is right (0.00)
Posted by Roger Gustavsson on 2020-05-08, 10:37:19 (216.158.98.226)
Magnepan's stated 87 dB is a bit optimistic, more like 82-83 dB for most models. I have a conventional speaker with 87 dB sensitivity (measured calibrated!) and my Maggies lose 4-5 dB to them at my li .......
323: Planar Speaker Asylum, RE: My Vicki has wrinkles, too ... (0.00)
Posted by Roger Gustavsson on 2020-05-04, 06:40:27 (85.188.73.3)
I think it is a damage in shipping. My Tympani had it and there were breaks in both baffles. The cardboard boxes also had damages. .......
324: Planar Speaker Asylum, RE: Magnepan 3.6 - who upgrades them? (0.00)
Posted by Roger Gustavsson on 2020-05-02, 01:15:07 (172.103.92.30)
shumi, I am surprised the rebuild by Magnepan is that much looking like DIY-repair. Wires not straight and a lot of adhesive. .......
325: Planar Speaker Asylum, RE: An FYI (0.00)
Posted by Roger Gustavsson on 2020-04-25, 08:56:10 (172.103.92.30)
Are they still having production in these days of covid-19? .......
326: Planar Speaker Asylum, RE: 900 Hz dip with 3.7i Magneplanars (0.00)
Posted by Roger Gustavsson on 2020-04-20, 10:06:30 (172.103.92.30)
The mid of the 3.7 is crossed over higher than the mid of the 3.6. Just about 4.3 kHz or so, electricly. http://www.integracoustics.com/MUG/MUG/tweaks/neolith/MG37_Bode.png .......
327: Planar Speaker Asylum, RE: More Bi-Amp help (0.00)
Posted by Roger Gustavsson on 2020-04-20, 10:01:23 (172.103.92.30)
oneartist wrote: "Would the Mini DSP crossovers work?" It will work. It may not be the best solution as you will have an additional ADC-DAC. I am using a miniDSP right now but plan to replace it with .......
328: Planar Speaker Asylum, RE: Wire to Foil Mod (0.00)
Posted by Roger Gustavsson on 2020-04-16, 23:22:23 (85.188.73.4)
The picture above shows an very old Tympani ID, about 1977 or so. I have not check what it looks like on my Tympani IIIA from 1976. The aluminium tape that Joppe uses, can be bought in the UK: https: .......
329: Planar Speaker Asylum, RE: I'm pleased to see you get a similar roll-off before 20kHz, like I do ... (0.00)
Posted by Roger Gustavsson on 2020-04-08, 02:58:52 (85.188.73.3)
The response is not rising if you measure the speaker at a distance with the mids activated. The curves above are taken very close. .......
330: Planar Speaker Asylum, RE: What is the frequency response of the 3.6R ribbon? (0.00)
Posted by Roger Gustavsson on 2020-03-25, 07:54:17 (85.188.73.5)
My measurement of the ribbon was with no connection of the mid and bass. It is safe. .......
331: Planar Speaker Asylum, RE: It is miniDSP UMIK-1 ... (0.00)
Posted by Roger Gustavsson on 2020-03-25, 00:05:39 (85.188.73.5)
Andy, it depends on what you want to measure. Off the shelf most cheap "measuring microphones" are really not very good, even with calibration. A german manufactor used the Pansonic WM-60AY and told m .......
332: Planar Speaker Asylum, RE: DIY Tympanis? (0.00)
Posted by Roger Gustavsson on 2020-03-23, 00:10:38 (85.188.73.1)
If you have them in series, would not the crossovers interfere in an unpredictable way? Not sure what happens if you have two series crossover in parallel. .......
333: Planar Speaker Asylum, RE: DIY Tympanis? (0.00)
Posted by Roger Gustavsson on 2020-03-22, 09:46:02 (172.103.92.30)
You cannot run them in series. I think you want to add only bass from the 1.7. Tympanies have their bass drivers differently tuned, one of the driver goes lower than the other in order increase the re .......
334: Planar Speaker Asylum, RE: Aah, OK ... (0.00)
Posted by Roger Gustavsson on 2020-03-22, 04:45:41 (172.103.92.30)
It is miniDSP UMIK-1, calibrated for +/-1 dB incl. the mic preamp. Lars Rönnhedh, who made the re-remakeover, had a very similar result (same typ of mic). The danish High Fidelity magazine had better .......
335: Planar Speaker Asylum, RE: I'm pleased to see you get a similar roll-off before 20kHz, like I do ... (0.00)
Posted by Roger Gustavsson on 2020-03-22, 02:28:19 (172.103.92.30)
It is the forward response with the crossover and the ribbon as mounted in the baffle. I have also measured the response from the back, it is slightly different. The recess (about 2 cm deep and 7 cm .......
336: Planar Speaker Asylum, RE: What is the frequency response of the 3.6R ribbon? (0.00)
Posted by Roger Gustavsson on 2020-03-20, 07:40:41 (172.103.92.30)
This the response with the crossover. My microphone roll off above 15-20 kHz. The response really hit the 40 kHz. .......
337: Planar Speaker Asylum, RE: "I now have a DEQX which I am very satisfied with" ... (0.00)
Posted by Roger Gustavsson on 2020-03-17, 23:42:01 (85.188.73.5)
That is quite different from the original crossover settings. Would it not require a change of phase for the bass? .......
338: Planar Speaker Asylum, RE: Magnepan upgrade kit (0.00)
Posted by Roger Gustavsson on 2020-03-11, 09:33:59 (172.103.92.30)
That is good point! That is what I have suggested all the time. It is a pity the crossover can only be accessed after removal of the front. There are a few push-on connectors that can corrode. ::: TOP .......
339: Planar Speaker Asylum, RE: "I now have a DEQX which I am very satisfied with" ... (0.00)
Posted by Roger Gustavsson on 2020-03-11, 09:27:09 (172.103.92.30)
Is not the Pass B4 a very rare crossover, just tens of them made or so? .......
340: Planar Speaker Asylum, RE: Maggie MG3.6R Active Crossover Advice (0.00)
Posted by Roger Gustavsson on 2020-03-11, 02:19:46 (85.188.73.1)
A problem with miniDSP 2x4HD is that you must use their built-in DAC. I am using a miniDSP myself but will replace it with an analog crossover and PEQ to avoid an additional ADC/DAC. .......
341: Planar Speaker Asylum, RE: LRS is the same. nt (0.00)
Posted by Roger Gustavsson on 2020-03-05, 02:48:25 (85.188.73.5)
Some of you find the jumpers on the crossover to need replacement. Not that this will clearly be heard, maybe after many years in a nasty environment the nickelplating may build up some oxide. How to .......
342: Planar Speaker Asylum, RE: Jumpers (0.00)
Posted by Roger Gustavsson on 2020-03-03, 23:16:55 (85.188.73.2)
I see now that the picture shows the MMG. Is the LRS different? .......
343: Planar Speaker Asylum, RE: Jumpers (0.00)
Posted by Roger Gustavsson on 2020-03-03, 23:13:52 (85.188.73.2)
The jumpers are for tweeters only. If you heard a change in the bass after replacing the jumpers, you must have done something else to your setup. The jumpers can be bypassed on the back of the connec .......
344: Planar Speaker Asylum, RE: Jumpers (0.00)
Posted by Roger Gustavsson on 2020-03-03, 02:30:54 (85.188.73.3)
You could have bypassed the jumpers on the back of the connecting panels for almost no coast at all! That would also have shorten the signal path. .......
345: Planar Speaker Asylum, RE: blown tweeters or crossover? maggies (0.00)
Posted by Roger Gustavsson on 2020-02-27, 09:40:07 (172.103.92.30)
Croosovers use to withstand a lot more than the fuses. .......
346: Planar Speaker Asylum, RE: "I now have a DEQX which I am very satisfied with" ... (0.00)
Posted by Roger Gustavsson on 2020-02-23, 01:37:11 (172.103.92.30)
Many of these ready made active crossovers have a selection of slopes that do not match what is needed for Magnepan 3.6. .......
347: Planar Speaker Asylum, RE: 3.6R biwire question (0.00)
Posted by Roger Gustavsson on 2020-02-17, 23:15:49 (85.188.73.5)
There is more to gain with an active crossover, at least for the low pass section. The high pass can be passive at line level. .......
348: Planar Speaker Asylum, RE: not milled aluminum - try carbon fibre or stailness steel /nt (0.00)
Posted by Roger Gustavsson on 2020-02-15, 06:07:38 (172.103.92.30)
Here are the links to Rönnhedh's modification. https://tinyurl.com/u8277pv https://tinyurl.com/s65855l https://tinyurl.com/sy8atr7 https://tinyurl.com/ryrttr2 https://tinyurl.com/rjckxjd https://tinyu .......
349: Planar Speaker Asylum, RE: If Magnepan wanted to go "all out" on frame material ... (0.00)
Posted by Roger Gustavsson on 2020-02-15, 00:50:52 (172.103.92.30)
What make you believ milled aluminium is good for this? You have not read the "MG 3.6 re-makeover" postings by Ronnhedh? It is the only modification I have seen with measurements showing what happens .......
350: Planar Speaker Asylum, RE: Active Crossover Aisstance 3.6r (0.00)
Posted by Roger Gustavsson on 2020-02-10, 14:40:17 (172.103.92.30)
There is an overlap between the bass and mid in the 3.6. 4th order Bessel comes close to the original slope of the low pass. If this is optimum? Who knows...- The integration of mid to tweeter is bett .......
351: Planar Speaker Asylum, RE: Active Crossover Aisstance 3.6r (0.00)
Posted by Roger Gustavsson on 2020-02-10, 09:22:41 (172.103.92.30)
Mine are close to the factory ones. The will be a slight increase in bass level as the passive external crossover have some losses due to the serial resistance of the coils. .......
352: Planar Speaker Asylum, RE: Active Crossover Aisstance 3.6r (0.00)
Posted by Roger Gustavsson on 2020-02-10, 04:17:27 (172.103.92.30)
This is what follows the original slopes of the external passive crossover. I am running mine with a Linkwitz-Riley 24 dB/octave, -6 dB at 260 Hz. The original slope is more a Bessel, a little les .......
353: Planar Speaker Asylum, RE: Build your own if you can. (0.00)
Posted by Roger Gustavsson on 2020-02-06, 08:43:58 (172.103.92.30)
It use to be recommended not to have identical distances to the side wall and the wall behind the dipole speaker. That is the 1m and >1m in the picture shown by shumi. Of course, it is difficult to de .......
354: Planar Speaker Asylum, RE: New Member Introduction & Amp Question (0.00)
Posted by Roger Gustavsson on 2020-01-31, 02:31:16 (85.188.73.2)
I know Roger Sanders work since the early 70s but as far as I know, someone reported about the original designer of his amps. .......
355: Planar Speaker Asylum, RE: New Member Introduction & Amp Question (0.00)
Posted by Roger Gustavsson on 2020-01-30, 23:10:55 (85.188.73.2)
Is not the Magtech a re-badged amp from another company? .......
356: Planar Speaker Asylum, RE: New Member Introduction & Amp Question (0.00)
Posted by Roger Gustavsson on 2020-01-30, 09:03:47 (172.103.92.30)
"High current" can also be described as many watts in 4 Ohms or in some cases a bit lower. Most Magnepan is not demanding that much of current due to their rather easy load compared to other speakers. .......
357: Planar Speaker Asylum, RE: I bought a pair of used MG II's (0.00)
Posted by Roger Gustavsson on 2020-01-27, 06:33:34 (85.188.73.6)
I you find them a bit laid back in the upper registers, turn them around. The moving mass is not very high of the tweeters but as they use a part of the diaphragm where the bass is, some mild "polutio .......
358: Planar Speaker Asylum, RE: Adding bass panels to 3.7i's (0.00)
Posted by Roger Gustavsson on 2020-01-22, 02:42:33 (85.188.73.2)
Adding IIIa to the 3.7i will add quantity, perhaps not extension. To extend the frequency response downwards, the lower tuned Tympani basses may be a better choice? Of course, one takes what is availa .......
359: Planar Speaker Asylum, RE: wow never seen that before (0.00)
Posted by Roger Gustavsson on 2020-01-20, 22:53:04 (85.188.73.2)
Magnepan do not sell new panels except for some tweeters. Quite some increase in pricing of spares in later years. The wires I order yesterday were 25% up from the fall of 2018. I would put the intern .......
360: Planar Speaker Asylum, RE: Magnepan 3.6 - who upgrades them? (0.00)
Posted by Roger Gustavsson on 2020-01-18, 01:52:22 (172.103.92.30)
Still think these wrinkled speakers have seen abuse in shipping! I have 12 Tympani bass drivers and none looks like that. Despite being shipped over the Atlantic. My damaged mid drivers looked similar .......
361: Planar Speaker Asylum, RE: Question (0.00)
Posted by Roger Gustavsson on 2020-01-18, 01:44:42 (172.103.92.30)
They distribute the resonances in order to tailor the frequency response. .......
362: Planar Speaker Asylum, RE: How far out is optimal? (0.00)
Posted by Roger Gustavsson on 2020-01-16, 22:44:56 (85.188.73.5)
It is not only the distance from the wall behind them that is important. The angle between the wall and the speakers, the distance to the side walls, the size of the room, the shape of it, if it is mo .......
363: Planar Speaker Asylum, RE: 1 vs 2 (0.00)
Posted by Roger Gustavsson on 2020-01-16, 02:17:37 (85.188.73.6)
So both speakers have wrinkled Mylar? Can be a sign of abuse like dropping them. My Tympani were damaged in shipping, Mylar was wrinkled. .......
364: Planar Speaker Asylum, RE: 1 vs 2 (0.00)
Posted by Roger Gustavsson on 2020-01-15, 10:40:10 (172.103.92.30)
The wrinkled Mylar is really no good sign. The wire making a bend, is it lose? .......
365: Planar Speaker Asylum, RE: Phase Plots (0.00)
Posted by Roger Gustavsson on 2020-01-14, 04:24:59 (85.188.73.1)
I think I can. You need to send me an E-Mail through this forum. .......
366: Planar Speaker Asylum, RE: Naked Maggies (0.00)
Posted by Roger Gustavsson on 2020-01-13, 22:35:20 (85.188.73.1)
Even the 20.7 reviewed by HiFi News were not matching and they are very expensive speakers. .......
367: Planar Speaker Asylum, RE: Magnepan 3.6 - who upgrades them? (0.00)
Posted by Roger Gustavsson on 2020-01-13, 11:19:57 (172.103.92.30)
That is a lot money for the MG 3.6. I paid less and mine are working. I did not like shipping them, met the buyer half way although we were in two different countries. I have not seen any instruction .......
368: Planar Speaker Asylum, RE: Magnepan 3.6 - who upgrades them? (0.00)
Posted by Roger Gustavsson on 2020-01-13, 09:01:09 (172.103.92.30)
Virginia - Minnesota is that not 1000 miles one way? I guess you need to drop off the speakers and come back when they are repaired. It is not rocket science opening them up and have a look. Are you s .......
369: Planar Speaker Asylum, RE: Center of Room Phase Plots (0.00)
Posted by Roger Gustavsson on 2020-01-12, 08:09:26 (172.103.92.30)
My 3.6 does not have that extra black wiring. It is tricky to remove the front cloth to see the crossovers. Risk of damaging the cloth. .......
370: Planar Speaker Asylum, RE: Phase Plots (0.00)
Posted by Roger Gustavsson on 2020-01-11, 13:47:36 (172.103.92.30)
Here are the mid tweeters of my 3.6 at 1m. One tweeter is about 2.5 dB up at any distance. Listening is 4 m from the speakers. .......
371: Planar Speaker Asylum, RE: Magnepan 3.6 - who upgrades them? (0.00)
Posted by Roger Gustavsson on 2020-01-11, 11:05:22 (172.103.92.30)
The ribbons of my 3.6 does not match either. Even the 20.7 tested by HiFi News in the UK showed a large mismatch of both speakers. You can build an active crossover and biamp them. This matches better .......
372: Planar Speaker Asylum, RE: Magnepan replacement shipping box (0.00)
Posted by Roger Gustavsson on 2020-01-10, 00:44:03 (85.188.73.3)
I have the original cardboard boxes for the MG 3.6 (single box) and the Tympani IVa (three boxes). Here are the T-IVa being packed down. Later damaged in shipping. Cardboard boxes gives little protect .......
373: Planar Speaker Asylum, RE: Frustrating. (0.00)
Posted by Roger Gustavsson on 2020-01-05, 07:34:44 (172.103.92.30)
Sure, still there are amps that do not like it! .......
374: Planar Speaker Asylum, RE: Frustrating. (0.00)
Posted by Roger Gustavsson on 2020-01-05, 03:47:42 (172.103.92.30)
The 1.7/1.7i is hard load on the power amplifier with its 2 Ohms at higher frequencies. I listened to 1.7 and 3.7 with the same Jeff Rowland power amp (ICE modules inside), the 3.7 was far better in a .......
375: Planar Speaker Asylum, RE: Larger Maggies -- Thx, Roger; That could indeed account . . . (0.00)
Posted by Roger Gustavsson on 2020-01-04, 14:08:37 (172.103.92.30)
The tweeters are similar. The Tympani IVa used the original wider ribbon There were two versions, 3 and 2 Ohms, the 2 Ohm ribbon needed a 1 Ohm resistor to reduce the level. The 3 Ohms was very fragil .......
376: Planar Speaker Asylum, RE: Larger Maggies -- Thank You, timm. What I recall hearing . . . (0.00)
Posted by Roger Gustavsson on 2020-01-04, 11:01:23 (172.103.92.30)
The ribbon tweeter crosses over in a different way nodays. Here my simulation of the electrical side of the crossover T-IVa vs 20.1: .......
377: Planar Speaker Asylum, RE: What are they, Norman? ... (0.00)
Posted by Roger Gustavsson on 2019-12-30, 09:37:19 (172.103.92.30)
Andy wrote: "And are the cloth-covered panels on the outside part of the same speaker system ... or something else?" It is the front covers. .......
378: Planar Speaker Asylum, RE: WAF, listening habits, and other stuff (0.00)
Posted by Roger Gustavsson on 2019-12-28, 08:00:59 (172.103.92.30)
I think the T-IVa basses are rolled-off at 250 Hz? .......
379: Planar Speaker Asylum, RE: 30.7 For Condo's at Quintessence Audio in Chicago: TitaniumTroy version (0.00)
Posted by Roger Gustavsson on 2019-12-17, 12:15:20 (172.103.92.30)
The large Tympanis never sold in large numbers, not even during the good years of hifi, 30-40 years ago. I have not seen any numbers on the 20-series but they have been in production for 27 years by n .......
380: Planar Speaker Asylum, RE: T1d (pair) and T3b 4way xover (0.00)
Posted by Roger Gustavsson on 2019-12-15, 11:07:43 (172.103.92.30)
You can get foil conductors from Magnepan. If you want to rewire a mid bass driver from the ID, you can get a foil 1.905 x 0.0254 mm (well, Magnepan uses inches...-). It can be layed for 5.3 Ohms. If .......
381: Planar Speaker Asylum, RE: T1d (pair) and T3b 4way xover (0.00)
Posted by Roger Gustavsson on 2019-12-15, 06:35:32 (172.103.92.30)
The ID and IIIB shares the same drivers if we talk about the basses and the tweeters. The difference is the IIIB having an additional midrange driver. So you intend to use 2 low bass drivers, 1 mid b .......
382: Planar Speaker Asylum, RE: T1d (pair) and T3b 4way xover (0.00)
Posted by Roger Gustavsson on 2019-12-15, 01:13:48 (172.103.92.30)
I think my main concern would be the lack of a good midrange driver. I would prefer to use the basses up to a maximum of about 300 Hz, roll them off rahter sharply. A dedicated midrange driver is diff .......
383: Planar Speaker Asylum, RE: My comments on hearing the "30.7 for Condos" (0.00)
Posted by Roger Gustavsson on 2019-12-12, 03:32:53 (85.188.73.1)
There is really not a big market for large high priced speakers anymore, never was but now it is even less os. The way peoble consumes music/film today is moving away from what was the dream 20-30 yea .......
384: Planar Speaker Asylum, RE: Wire to Foil Mod (0.00)
Posted by Roger Gustavsson on 2019-12-11, 23:24:24 (85.188.73.1)
I highly recommend his Youtube videos. .......
385: Planar Speaker Asylum, RE: Wire to Foil Mod (0.00)
Posted by Roger Gustavsson on 2019-12-11, 02:09:58 (85.188.73.3)
These are not Magnepan, he made them from scratch by himself (different wires/magnets). Cleaning very old Magnepan drivers there use to be some traces of the old glue left. It seems that the very old .......
386: Planar Speaker Asylum, RE: "NO attachments to the sides." ... (0.00)
Posted by Roger Gustavsson on 2019-12-08, 04:14:14 (172.103.92.30)
Here you can side the spots of glue holding the ribbon. .......
387: Planar Speaker Asylum, RE: New 30.7 for condos review (0.00)
Posted by Roger Gustavsson on 2019-11-29, 09:51:54 (172.103.92.30)
There is more to it than frequency response. Even my very old low bass drivers with the highest moving mass reach about 5k. They does not sound very good above 200 Hz or so... .......
388: Planar Speaker Asylum, RE: Magnepan needs your help (0.00)
Posted by Roger Gustavsson on 2019-11-29, 07:35:04 (172.103.92.30)
Dahlquist DQ-10 open baffle? The woofer was a sealed box. The rest were open baffle, maybe not the Motorola piezo. .......
389: Planar Speaker Asylum, RE: New 30.7 for condos review (0.00)
Posted by Roger Gustavsson on 2019-11-27, 22:54:14 (85.188.73.3)
For us having the T-IVa, the mid/tweeter section of the 30.7 Condos would be interesting, to go with the T-IVa woofers. .......
390: Planar Speaker Asylum, RE: Talk to me about foil please (0.00)
Posted by Roger Gustavsson on 2019-11-24, 09:44:14 (172.103.92.30)
The loss of efficiency has nothing to do with loss of dynamics. However, the loss of efficiency will upset the tonal balance of the speaker when the mids drop off. If you running your T-IVa with the o .......
391: Planar Speaker Asylum, RE: Talk to me about foil please (0.00)
Posted by Roger Gustavsson on 2019-11-24, 06:44:06 (172.103.92.30)
The mids of my Tympani IVa are modified with foil conductors, the same foil as used in the mids of the 20-series. It was the smallest cross section five years ago, measures 0.0005" by 0.1" (equal to A .......
392: Planar Speaker Asylum, RE: These were the same price (0.00)
Posted by Roger Gustavsson on 2019-11-20, 22:12:30 (85.188.73.5)
That is not what I ment. I am talking about the distance between the two panels holding the driver for mid/tweeter, not the distance between the bass and mid/tweeter panels. In order to get some propp .......
393: Planar Speaker Asylum, RE: These were the same price (0.00)
Posted by Roger Gustavsson on 2019-11-19, 22:22:37 (85.188.73.3)
The mid/tweeters drivers cannot be separated, What we are suggesting is that the distance between the panels containing the the mid/tweeter drivers should be a lot further apart than in the picture of .......
394: Planar Speaker Asylum, RE: Vintage MMGIIC speakers (0.00)
Posted by Roger Gustavsson on 2019-11-19, 22:17:20 (85.188.73.3)
Contact Magnepan, they keep a record. They need the serial number to verify this. .......
395: Planar Speaker Asylum, RE: You mean THIS shunt cap? (0.00)
Posted by Roger Gustavsson on 2019-11-18, 22:49:02 (85.188.73.6)
That is a resistor to set the tweeter level. Are you still using the speakers without the external crossover? No wonder if they sound strange...- .......
396: Planar Speaker Asylum, RE: a random thought: Has anyone performed a fuse bypass yet on the new foil inlay series? (0.00)
Posted by Roger Gustavsson on 2019-11-16, 09:26:45 (172.103.92.30)
"Steel wire"? Mostly aluminium and in a few cases copper is what you find on the Mylar. If you never had a broken fuse it should be safe. You most be aware in case you change something in your setup! .......
397: Planar Speaker Asylum, RE: Just phoned Magnepan (0.00)
Posted by Roger Gustavsson on 2019-11-16, 05:22:35 (172.103.92.30)
Yes, there is a difference. The quasi ribbon is not a ribbon in the normal sense. It is a flat wire glued to a tensioned plastic diaphragm. A true ribbon speaker is originally a ribbon of aluminium be .......
398: Planar Speaker Asylum, RE: First pair of Magnepan Tympani II's produced. (0.00)
Posted by Roger Gustavsson on 2019-11-16, 01:56:43 (172.103.92.30)
Tweeters can be repaired, it is a DIY project. To get access to the magnets you need to have new Mylar. To have a good match with the working tweeter, you probably need to re-build both tweeters. If y .......
399: Planar Speaker Asylum, RE: "30.7 for Condos" first review (0.00)
Posted by Roger Gustavsson on 2019-11-14, 01:39:27 (85.188.73.4)
Is that the new mid/tweeter section next to Wendell Diller? Is the bass section a separate unit? .......
400: Planar Speaker Asylum, RE: Maggie's 1.7i (0.00)
Posted by Roger Gustavsson on 2019-11-12, 23:17:19 (85.188.73.4)
Check the internal Connections. Especially the connectors to the drivers, the clamps of the foil conductors. .......
401: Planar Speaker Asylum, RE: These were the same price (0.00)
Posted by Roger Gustavsson on 2019-11-12, 22:31:45 (85.188.73.4)
1a? If that is a Tympani, it must be very old and if so not up to the final Tympani, the IVa. .......
402: Planar Speaker Asylum, RE: These were the same price (0.00)
Posted by Roger Gustavsson on 2019-11-12, 02:33:51 (172.103.92.30)
Yes but the IVa mid/tweeter sections need to be further apart. Maybe place them far left and right, basses on the inside. You can also look for the "narrow room placement" in the manual. .......
403: Planar Speaker Asylum, RE: First pair of Magnepan Tympani II's produced. (0.00)
Posted by Roger Gustavsson on 2019-11-11, 03:56:48 (85.188.73.3)
Interesting story! Still the original Mylar? Are the tweeters single-ended or with magnets om both sides? I like that the tweeter and midbass sit Close to each other. Is that still the case? Some of t .......
404: Planar Speaker Asylum, RE: Used Tympanis (0.00)
Posted by Roger Gustavsson on 2019-11-10, 23:22:54 (85.188.73.3)
If they were floded, you need a complete rebuild and not just new socks (which are about $200 from Magnepan). I paid a lot less for a pair of Tympani ID last year here in Europe. .......
405: Planar Speaker Asylum, Used Tympanis (0.00)
Posted by Roger Gustavsson on 2019-11-10, 02:07:56 (172.103.92.30)
What a price for these! .......
406: Planar Speaker Asylum, RE: rewiring with foil? ... (0.00)
Posted by Roger Gustavsson on 2019-11-09, 02:10:18 (172.103.92.30)
That is quite a bit more than what Magnepan want. Last time I asked, they wanted USD 250 for each bass driver including new Mylar. .......
407: Planar Speaker Asylum, RE: Do re-wired panels require run-in? ... (0.00)
Posted by Roger Gustavsson on 2019-11-06, 23:03:54 (85.188.73.5)
Andy, what did you have to pay for rewiring with foil? I had a friend of mine doing the T-IVa mids. .......
408: Planar Speaker Asylum, RE: "30.7s for condos" Magnepan ad in TAS? (0.00)
Posted by Roger Gustavsson on 2019-11-06, 04:56:50 (85.188.73.3)
I wish Magnepan produced a modular speaker. A mid/tweeter section that could be combined with different kind of basses. There could be a step-in bass, not necessarily covering sub 40 Hz or so. Higher .......
409: Planar Speaker Asylum, RE: Well, they are on their way back!! ... (0.00)
Posted by Roger Gustavsson on 2019-11-06, 04:01:41 (85.188.73.3)
Nice work! How have you fasten the drivers to the wood structures? I can see some additional screws. Are the strengthening crossbars screwed as well? I can also see some dampening pads or something on .......
410: Planar Speaker Asylum, RE: Well, they are on their way back!! ... (0.00)
Posted by Roger Gustavsson on 2019-11-05, 02:41:54 (85.188.73.4)
The resistance depends on the cross sectional are of the foil. I think the number of foil conductors available from Magnepan is limited. With an increase from 4 to 5 Ohms, you will have a lower effici .......
411: Planar Speaker Asylum, RE: research Behringer (0.00)
Posted by Roger Gustavsson on 2019-11-02, 11:55:51 (84.156.231.171)
The Behringer crossover cannot replicate the original crossover curves. .......
412: Planar Speaker Asylum, RE: Same (0.00)
Posted by Roger Gustavsson on 2019-10-28, 11:51:23 (217.100.43.147)
Still, sandfilled (or maybe even leadfilled) aluminium profiles seems to be a great improvement over the original baffles in terms of damping and ridigty as measured by Lars Rönnhedh. .......
413: Planar Speaker Asylum, RE: Here you go (0.00)
Posted by Roger Gustavsson on 2019-10-24, 22:27:37 (85.188.73.5)
Andy wrote: "If hardwood does soak up vibrations in the panels ... then more wood will be better than less wood." We still need measurements on various materials to see which one will "soak up vibrati .......
414: Planar Speaker Asylum, RE: Will do! nt (0.00)
Posted by Roger Gustavsson on 2019-10-24, 01:39:58 (85.188.73.4)
Andy, have you tried them out yet? .......
415: Planar Speaker Asylum, RE: Here you go (0.00)
Posted by Roger Gustavsson on 2019-10-23, 10:17:19 (172.103.92.30)
Correct! I am really interested in seeing measurements of the resonant behaviour of different types of frames. Not just what peoble "feel" is good or not. A more solid feeling frame may not be the bes .......
416: Planar Speaker Asylum, RE: Here you go (0.00)
Posted by Roger Gustavsson on 2019-10-23, 09:28:48 (172.103.92.30)
Josh wrote: "Consider that if the incredibly light diaphragm is creating vibration in the massive frame...-" Incredibly light diaphragm? Not really, it is not an electrostatic! .......
417: Planar Speaker Asylum, RE: Got 'em! And seller gave me a Phase Coupled Activator with them! (0.00)
Posted by Roger Gustavsson on 2019-10-23, 05:54:00 (85.188.73.4)
The manual for the Audio Control: https://www.audiocontrol.com/downloads/home/discontinued/pca/PCA%20%28Original%29%20Owners%20Manual.pdf Yes. there is an active crossover in there. .......
418: Planar Speaker Asylum, RE: I do believe that the sonic comparisons that might have been done (0.00)
Posted by Roger Gustavsson on 2019-10-22, 08:49:40 (172.103.92.30)
My post above was cut off... Lars Rönnhedh is the only one that has measured the resonant behaviour. Damped aluminium profiles seems to be very good. https://www.audioasylum.com/cgi/vt.mpl?f=mug&m=233 .......
419: Planar Speaker Asylum, RE: Hardwood? MDF? Something else? Is there a consensus? Yeah, I know. LOL (0.00)
Posted by Roger Gustavsson on 2019-10-22, 05:44:45 (85.188.73.2)
Lars R .......
420: Planar Speaker Asylum, RE: Crossovers for Magnepan MGIII Planar Loudspeakers? (0.00)
Posted by Roger Gustavsson on 2019-10-22, 02:19:25 (85.188.73.2)
"Hello! I am considering buying: https://stlouis.craigslist.org/ele/d/saint-louis-vintage-magnepan-mgiii/7003097514.html but I understand the delicate RIBBON tweeter is quite fragile. And the seller d .......
421: Planar Speaker Asylum, RE: Upgraded Tympani IVa X-Overs (0.00)
Posted by Roger Gustavsson on 2019-10-21, 22:50:47 (85.188.73.2)
1 Ohm Scintillas is VERY different in demand of current than Tympani IVa! Maybe you are running at least 8 times more current there for the same SPL? .......
422: Planar Speaker Asylum, RE: Upgraded Tympani IVa X-Overs (0.00)
Posted by Roger Gustavsson on 2019-10-10, 22:53:17 (85.188.73.5)
Some of the coils are sitting very close to each other. It may follow the original layout where the coils interact. Separating them will change their value. Original mid/tweeter crossover: Origina .......
423: Planar Speaker Asylum, RE: rewire (0.00)
Posted by Roger Gustavsson on 2019-10-09, 11:07:55 (172.103.89.104)
The flat wire will not sit in the most intense magnetic field as a round wire can. This can lower the SPL by 1-1.5 dB. The flat wire will change the behaviour of the diaphragm too. It will reduce the .......
424: Planar Speaker Asylum, RE: Magnaplanar MG-IIA speakers. Where can I repair them? (0.00)
Posted by Roger Gustavsson on 2019-10-09, 06:06:01 (85.188.73.6)
Strange, Magnepan MG-IIA is a known model. What has Omega to do with it? The serial number is for a single speaker. The other one must have a R at the end. These are very old speakers, made before 198 .......
425: Planar Speaker Asylum, RE: Tympani IVa's on eBay (0.00)
Posted by Roger Gustavsson on 2019-10-02, 22:27:07 (85.188.73.6)
Yes, they are! The original baffles are not to my liking (and they are stuffed away in the original cartons). I want them more sturdy. The mid/tweeter drivers can also be placed closer to each other a .......
426: Planar Speaker Asylum, RE: Tympani IVa's on eBay (0.00)
Posted by Roger Gustavsson on 2019-10-02, 09:57:50 (172.103.89.104)
In 2013 they had cartons for them. Not very protective though. 3 cartons like these: All my Tympani in storage have these crates: .......
427: Planar Speaker Asylum, RE: Name That Amp (0.00)
Posted by Roger Gustavsson on 2019-10-02, 05:31:55 (85.188.73.4)
What is Sanders input on these amplifiers? Is Coda the designer/manufactor? .......
428: Planar Speaker Asylum, RE: Tympani IVa's on eBay (0.00)
Posted by Roger Gustavsson on 2019-10-02, 04:59:10 (85.188.73.4)
I have a set of Magnepan Tympani IVa with serial no. 20838, manufactured in July 1985. These on ebay must be even earlier. The added series resistor indicates that the ribbons were changed to the late .......
429: Planar Speaker Asylum, RE: Tympani IVa's on eBay (0.00)
Posted by Roger Gustavsson on 2019-09-29, 22:59:02 (85.188.73.1)
$800 is really a lot. Did not pay that much from Chicago to Scandinavia. Do not rember if it was Fedex or UPS within the US but damages anyway. .......
430: Planar Speaker Asylum, RE: Thaks, Roger ... (0.00)
Posted by Roger Gustavsson on 2019-09-27, 04:10:12 (85.188.73.3)
The 3.7i seems to have crossover points at 450 and 4500 Hz. No text book slopes, maybe a low pass on the bass about 12 dB/octave. For the mid a high pass about 9 dB/octave and a low pass about 6 dB/oc .......
431: Planar Speaker Asylum, RE: Great to hear - thanks, Tim. nt (0.00)
Posted by Roger Gustavsson on 2019-09-26, 22:48:20 (85.188.73.3)
You cannot make measurements before and after? I think replacing the round wire with foil conductors will reduce the low bass maximum level and probably clean up higher frequencies. As you have subs t .......
432: Planar Speaker Asylum, RE: AMT-920-1-60W (0.00)
Posted by Roger Gustavsson on 2019-09-26, 05:19:34 (85.188.73.6)
I think the Quad ESL-63 had a very good match of a pair in the beginning of the eighties, 0.5 dB or so. Remember when they set up two speakers face to face and nulled most of the signal. .......
433: Planar Speaker Asylum, RE: AMT-920-1-60W (0.00)
Posted by Roger Gustavsson on 2019-09-25, 23:26:18 (85.188.73.6)
It would be interesting to know if the situation below have changed lately. I have linked to this information earlier. The German distributor Proraum stopped selling the BG-Radia 2½ years ago. This wa .......
434: Planar Speaker Asylum, RE: NEO 8's - Radian LM8K's (0.00)
Posted by Roger Gustavsson on 2019-09-23, 23:19:42 (85.188.73.1)
The Radian LM8K is about 190 € in France, the Neo 8 was 150 €. The technical data is similar to the BG Neo 8. Same peak around 12-13 kHz. The holes in the front and backplates are very similar too. : .......
435: Planar Speaker Asylum, RE: Is the magnet spacing the same for the wire vs. QR drivers? (0.00)
Posted by Roger Gustavsson on 2019-09-23, 22:54:59 (85.188.73.1)
Not sure but as the foil conductors lowers the efficiency for a given impedance. Who knows if the "foiled" models really have the same output as the round wire ones? Magnepan states the same sensitivi .......
436: Planar Speaker Asylum, RE: Perhaps (0.00)
Posted by Roger Gustavsson on 2019-09-23, 08:57:52 (172.103.89.104)
It is in the link to Neo 8S in Saties post. .......
437: Planar Speaker Asylum, RE: Perhaps (0.00)
Posted by Roger Gustavsson on 2019-09-23, 05:57:05 (85.188.73.5)
That BG document also states: "A notch filter or EQ as well as placing felt over the side radiating slots (for smoother HF response and wider dispersion above 10 kHz ) can also be considered." ::: TOP .......
438: Planar Speaker Asylum, RE: Tympani IVa Available (0.00)
Posted by Roger Gustavsson on 2019-09-21, 05:04:27 (172.103.89.104)
My IVa were shipped from Chicago to New Jersey, by ship to Europe in the original cartons. They arrived with damages to the midrange drivers and the M/T baffles. No insurance covered it. I had to rene .......
439: Planar Speaker Asylum, RE: Perhaps (0.00)
Posted by Roger Gustavsson on 2019-09-20, 23:57:19 (172.103.89.104)
Well, you can get the information here... I bought the foil and adhesive from Magnepan. You should ask for the foil measuring 0.1" by 0.0005", the one used in the 20-series mid. Will give you the same .......
440: Planar Speaker Asylum, RE: Bi-amp, crossover parts (0.00)
Posted by Roger Gustavsson on 2019-09-20, 09:44:00 (172.103.89.104)
If the internal parts are changed, I think it is better to redesign the crossover from scratch. As the intention is to use only the T-IVa basses, an active line level crossover is what is needed. The .......
441: Planar Speaker Asylum, RE: Perhaps (0.00)
Posted by Roger Gustavsson on 2019-09-20, 02:34:20 (85.188.73.5)
The internal crossover, T-IVa 1985: The external crossover, T-IVa 1985: .......
442: Planar Speaker Asylum, RE: Perhaps (0.00)
Posted by Roger Gustavsson on 2019-09-19, 22:28:25 (85.188.73.5)
I would say biamping with an active crossover, replacing the outboard crossover. The internal crossover mid/tweeter is a bit strange with the coils sitting very close to each other. If you separate th .......
443: Planar Speaker Asylum, RE: Adding bass panels to 3.7i's (0.00)
Posted by Roger Gustavsson on 2019-09-07, 08:01:03 (172.103.89.104)
Tympani bass drivers is what you need. They are the ones that go lower than the 3-series. These are old and may need a rebuild (which is expensive). Suitable ones can be from IIIA, IIIB or ID. The one .......
444: Planar Speaker Asylum, RE: Volume baby (0.00)
Posted by Roger Gustavsson on 2019-09-03, 10:55:30 (172.103.89.104)
Yes, that is correct and put less strain on the midrange driver. I mixed it up with the low pass on the basses for the 20 and 20.1, it is really low. .......
445: Planar Speaker Asylum, RE: current generation of Maggies - (0.00)
Posted by Roger Gustavsson on 2019-09-02, 07:10:21 (85.188.73.1)
Josh wrote: "I assume the new midrange uses the lowest mass diaphragm material possible. Having a separate midrange means that they can fully optimize it, rather than having to use part of the thicker .......
446: Planar Speaker Asylum, RE: Volume baby (0.00)
Posted by Roger Gustavsson on 2019-09-02, 04:09:29 (85.188.73.1)
I am not sure there is a thinner diapragm in the 30.7. As far as I know, Tympani IVa mids are the only Maggies with 6 µm Mylar and that alone is not enough to cure the veiling. The BG Neo 8 have some .......
447: Planar Speaker Asylum, RE: No the usual studio monitors. nt (0.00)
Posted by Roger Gustavsson on 2019-08-29, 11:35:29 (172.103.89.104)
There is a studio in Norway that uses MG 20-series for monitoring. .......
448: Planar Speaker Asylum, RE: 30.7 at Sound & Vision North of Columbus Ohio (0.00)
Posted by Roger Gustavsson on 2019-08-25, 05:29:13 (172.103.89.104)
Josh wrote: "Really interesting about the bass panels. Now all I have to do is find a second pair of IVA's cheap and tape the panels together." I am afraid it is not that easy. When you add magnets to .......
449: Planar Speaker Asylum, RE: Magnepan manual (0.00)
Posted by Roger Gustavsson on 2019-08-17, 00:46:56 (172.103.89.104)
I would not take the risk of transporting them without the protection strips. If the ribbons break, which they easily do, it is not cheap to repair them. .......
450: Planar Speaker Asylum, RE: MG IIIa Real Height (0.00)
Posted by Roger Gustavsson on 2019-08-15, 23:22:38 (172.103.89.104)
Sure, for transport you need to remove the feet. I can measure mine later. Measured my 3.6, which I think are same height. 71 inches without feet/stands. .......
451: Planar Speaker Asylum, RE: Bi-Amping Magnepan Tympani 1D (0.00)
Posted by Roger Gustavsson on 2019-08-14, 22:59:45 (172.103.89.104)
I have not seen the B4 available in the diyaudiostore. The original ready built B4 is very rare and probably out of production. The B4 in kit form is not identical to the ready built First Watt B4 Act .......
452: Planar Speaker Asylum, RE: Bi-Amping Magnepan Tympani 1D (0.00)
Posted by Roger Gustavsson on 2019-08-14, 09:19:35 (172.103.89.104)
I am not Saite but a miniDSP can do the job. I am using one myself. It will let you experiment with a lot of things too. Like steeper slopes, different ways of eq and time delay etc. You should go for .......
453: Planar Speaker Asylum, RE: One word (0.00)
Posted by Roger Gustavsson on 2019-08-12, 09:31:30 (172.103.89.104)
Däfos is also on CD, that is what I have analyzed. .......
454: Planar Speaker Asylum, RE: One word (0.00)
Posted by Roger Gustavsson on 2019-08-12, 08:51:30 (172.103.89.104)
Yes, this is it. An analysis. Extended bass and dynamic. Béla Fleck drops a bit below 35 Hz. .......
455: Planar Speaker Asylum, RE: Bi-Amping Magnepan Tympani 1D (0.00)
Posted by Roger Gustavsson on 2019-08-11, 05:27:46 (172.103.89.104)
It is possible to open them up and replace the wiring. To replace the diphragm (Mylar) it is tricky but not impossibble. You can use a thinner Mylar and foil conductors too. This is a Tympani IIIA tw .......
456: Planar Speaker Asylum, RE: Bi-Amping Magnepan Tympani 1D (0.00)
Posted by Roger Gustavsson on 2019-08-11, 02:42:40 (172.103.89.104)
The ID I have are 42 years old or and the tweeters still work but there is a noise in one of them while running measurements. It could be that the wires on the diaphragm is coming lose. The basses wir .......
457: Planar Speaker Asylum, RE: mum is the word from now on (0.00)
Posted by Roger Gustavsson on 2019-07-31, 04:34:02 (85.188.73.2)
There is no E-Mail address on http://www.magnepan.com/contact I have used E-Mail for communication with Magnepan since 2010. Wrote a letter and they answered by E-Mail. .......
458: Planar Speaker Asylum, RE: 6 Moons writeup (0.00)
Posted by Roger Gustavsson on 2019-07-30, 22:06:34 (85.188.73.2)
I think the inductor may influence the upper range of the bass. I would have liked an active crossover for the bass to mid to go with a speaker of this caliber. .......
459: Planar Speaker Asylum, RE: 6 Moons writeup (0.00)
Posted by Roger Gustavsson on 2019-07-30, 11:24:38 (172.103.89.104)
For a speaker costing that much, I find this inappropriate: .......
460: Planar Speaker Asylum, RE: mum is the word from now on (0.00)
Posted by Roger Gustavsson on 2019-07-29, 23:10:48 (85.188.73.6)
Answering E-Mails can be very time consuming compared to Telephone. I prefer E-Mails because you can add a lot more information. .......
461: Planar Speaker Asylum, RE: marketing@magnepan.com (0.00)
Posted by Roger Gustavsson on 2019-07-29, 10:26:24 (172.103.89.104)
They have several E-Mail addresses, just do not want them published...- They are not very good in answering on E-Mails either. Wendell just want you to use the telephone. .......
462: Planar Speaker Asylum, RE: Question (0.00)
Posted by Roger Gustavsson on 2019-07-28, 09:19:52 (172.103.89.104)
1.7 has about 530 square inches in total (bass, tweeter,super tweeter). .......
463: Planar Speaker Asylum, RE: Have you replaced (0.00)
Posted by Roger Gustavsson on 2019-07-20, 07:42:35 (141.98.102.142)
I do not understand why you replace the jumpers when you can bypass them on the back of the connecting panels? We have given instructions before how to do it. If you unscrew the connecting panels and .......
464: Planar Speaker Asylum, RE: Thanks, Roger ... (0.00)
Posted by Roger Gustavsson on 2019-07-19, 01:09:34 (172.103.89.104)
As far as I know, the only Magnepans with completely separate mids are the Tympani III, IIIA, IIIB, IV and IVa. The MG 20 and 20.1 are like the one in the picture. The various models in the 3-series, .......
465: Planar Speaker Asylum, RE: Have you replaced (0.00)
Posted by Roger Gustavsson on 2019-07-18, 11:10:28 (172.103.89.104)
I doubt you will hear a difference. On the back of the connector panels you will find two ring terminals. If you put them under the same nut, you can remove the jumper. If you really would try to impr .......
466: Planar Speaker Asylum, Structure of the 20-series (0.00)
Posted by Roger Gustavsson on 2019-07-17, 08:46:42 (84.173.178.94)
Roger wrote: "The 20-series have their mid on the same structure as the bass." Andy wrtoe: "Not sure what you mean by "the same structure", Roger? The pics I've seen of the 20.X construction process i .......
467: Planar Speaker Asylum, RE: Thanks, Josh ... (0.00)
Posted by Roger Gustavsson on 2019-07-17, 00:14:34 (84.173.178.94)
There are a few differncies between the mid of the 3.7 and the mid of the T-IVa. The driven area of the 3.7 mid is narrower. The 3.7 uses are thicker flat section wire (foil). The 3.7 uses thicker My .......
468: Planar Speaker Asylum, RE: Differences between 20.7 and 3.7? (0.00)
Posted by Roger Gustavsson on 2019-07-02, 09:38:36 (84.173.178.94)
All speakers of the 20-series have quasi ribbon midrange drivers. The 20.1 and the 20.7 have push pull drivers (magnets on both sides of the diaphragm). The 3.6 is a totally different design where bas .......
469: Planar Speaker Asylum, RE: The Asylum video goes live! (0.00)
Posted by Roger Gustavsson on 2019-06-25, 22:41:29 (85.188.73.2)
Who are these other guys? .......
470: Planar Speaker Asylum, RE: Very interesting graphs, Roger ... (0.00)
Posted by Roger Gustavsson on 2019-06-25, 01:26:32 (85.188.73.1)
I not sure a cheap measuring microphone is that well calibrated above 15 kHz. As the ribbon element sits in a little cavity even with the gage behind, it ought to show up in measurements, at least at .......
471: Planar Speaker Asylum, tweeter response (0.00)
Posted by Roger Gustavsson on 2019-06-24, 23:34:11 (85.188.73.1)
Here is a polar response of the ribbon tweeter. The cavity in front of the tweeter is reduced in depth, from 20 mm to 6 mm. The tweeter response, blue is original, green is with the tweeter turned .......
472: Planar Speaker Asylum, RE: Really excellent room performance, Tim! ... (0.00)
Posted by Roger Gustavsson on 2019-06-24, 22:29:21 (85.188.73.1)
Andy wrote: "I notice you have a steep drop-off starting at ~16kHz. I also see this on my REW plots - but my ribbons are specced to 40kHz ... so I'm wondering why I'm seeing the drop-off, rather than .......
473: Planar Speaker Asylum, RE: Xackly! ... (0.00)
Posted by Roger Gustavsson on 2019-06-16, 00:20:52 (216.158.98.120)
Mike K, We know there are a lot of questionable connections behind these connection panels that can deteriorate. Many of them can be bypassed by simple methods, just move a connector from one place to .......
474: Planar Speaker Asylum, RE: 20.7 Dimensions (0.00)
Posted by Roger Gustavsson on 2019-06-12, 09:22:15 (216.158.98.120)
You can also make a thinner steel plate like the oval feet. .......
475: Planar Speaker Asylum, RE: 20.7 Dimensions (0.00)
Posted by Roger Gustavsson on 2019-06-11, 22:23:14 (85.188.73.5)
From a German review they are 80.7" (205 cm). .......
476: Planar Speaker Asylum, RE: MG-IIa ID the metal strip. (0.00)
Posted by Roger Gustavsson on 2019-06-09, 00:25:48 (207.189.194.245)
The metal strips have about the same thickness as the sheet metal in the body of a car... .......
477: Planar Speaker Asylum, RE: MG-IIa ID the metal strip. (0.00)
Posted by Roger Gustavsson on 2019-06-08, 13:25:36 (207.189.194.245)
There use to be one on each side of the baffle and they stiffens the panel a bit. .......
478: Planar Speaker Asylum, RE: Neo 8 mod impressions (0.00)
Posted by Roger Gustavsson on 2019-06-06, 10:10:05 (207.189.194.245)
A single Neo 8 measures like this. Blue trace is in original shape, red trace is after removal of the front half with its magnets. .......
479: Planar Speaker Asylum, RE: Neo 8 mod impressions (0.00)
Posted by Roger Gustavsson on 2019-06-06, 00:35:09 (207.189.194.245)
Josh, I think we see the noise floor of the measuring equipment and the distorsion is hidden by the noise. .......
480: Planar Speaker Asylum, RE: Neo 8 mod impressions (0.00)
Posted by Roger Gustavsson on 2019-06-05, 11:28:07 (207.189.194.245)
And now we like to see if the reduction of the peak at 12-13 kHz is also followed by a reduction of the distorsion at that frequency that a single Neo has. .......
481: Planar Speaker Asylum, RE: Technical question (0.00)
Posted by Roger Gustavsson on 2019-06-05, 02:13:26 (85.188.73.4)
Satie wrote: "I believe that the reinforcement peaks are not really that big and are not very broad. and depending on where your seat is it might not be audible." That is true. Peaks are not as big as .......
482: Planar Speaker Asylum, RE: Technical question (0.00)
Posted by Roger Gustavsson on 2019-06-04, 22:50:14 (85.188.73.4)
As far as I know, where you get a dip with conventional box speakers, you get a peak with dipoles. In order to have a peak at 30 Hz, you need to place your dipoles about 11 m from the wall. ::: TOPIC: .......
483: Planar Speaker Asylum, RE: "Can the dynamics of Magneplanars be enhanced?" (0.00)
Posted by Roger Gustavsson on 2019-06-04, 02:59:48 (85.188.73.6)
Paul is really on thin ice in some of those videos. There are two ways dynamics. One is the large scale SPL-oriented dynamics like blowing the trousers off and then there are small scale dynamics, fin .......
484: Planar Speaker Asylum, RE: ALSYVOX (0.00)
Posted by Roger Gustavsson on 2019-06-01, 12:04:04 (207.189.194.245)
At $87000 for a pair, I would expect them to outperform even the MG 30.7. .......
485: Planar Speaker Asylum, RE: Recapped my IVA's (0.00)
Posted by Roger Gustavsson on 2019-05-22, 10:19:14 (207.189.194.245)
There ought to be some coupling of the coils sitting so close to each other. .......
486: Planar Speaker Asylum, RE: Recapped my IVA's (0.00)
Posted by Roger Gustavsson on 2019-05-20, 02:26:31 (85.188.73.5)
Sure, the external crossover is a compromise. A third order passive low pass crossover at this frequency is inferior to an active crossover. I am not using the external crossover with my 3.6 either. J .......
487: Planar Speaker Asylum, RE: Recapped my IVA's (0.00)
Posted by Roger Gustavsson on 2019-05-19, 05:21:55 (185.59.220.232)
80 cm? Not the black and white coil in the m/t panels. If Magnepan have taken the nearness into account, you should not move the coils further apart if upgrading to an external box (we often see that .......
488: Planar Speaker Asylum, RE: Recapped my IVA's (0.00)
Posted by Roger Gustavsson on 2019-05-19, 04:12:00 (185.59.220.232)
But the two sitting close to each other should be seen as single one. If you take them apart their sombinde value will change. The internal crossover in the mid/tweeter panels has close sitting coils .......
489: Planar Speaker Asylum, RE: I don't believe anyone has ever posted them. :-(( nt (0.00)
Posted by Roger Gustavsson on 2019-05-09, 08:19:35 (207.189.194.245)
Magnepan do not publish this any more. You need to find someone willing to look inside their speakers. .......
490: Planar Speaker Asylum, RE: You posted your design in an earlier discussion, and it's cool, but... (0.00)
Posted by Roger Gustavsson on 2019-04-30, 00:49:50 (85.188.73.5)
Mass or not? What do you think the stands/supports are doing? They couple the speaker to a high mass. Just make sure that mass is not resonating! I want to have a ratio of 1000 between the static mass .......
491: Planar Speaker Asylum, RE: "The fact that the panels sway to and fro actually doesn't matter" ... (0.00)
Posted by Roger Gustavsson on 2019-04-26, 04:59:09 (85.188.73.1)
You need to be careful not to inject any vibration into surfaces that can vibrate, like the floor, walls or ceiling. Stands like Mye's is coupling the speaker to the floor but they do not stiffen the .......
492: Planar Speaker Asylum, RE: "with Satie's Neo8 midrange mod" ... (0.00)
Posted by Roger Gustavsson on 2019-04-26, 02:39:24 (85.188.73.1)
I recommend building a different baffle for the mid/tweeter. The original one is weak, especially the section between the two drivers. Put the drivers closer to each other may improve imaging. As most .......
493: Planar Speaker Asylum, BG Neo drivers (0.00)
Posted by Roger Gustavsson on 2019-04-25, 10:54:59 (207.189.194.245)
I found this remark om the BG Neo drivers: https://tinyurl.com/y4bynoc6 That is sad! .......
494: Planar Speaker Asylum, RE: You're delusional, dclamb2 ... (0.00)
Posted by Roger Gustavsson on 2019-04-25, 07:46:57 (207.189.194.245)
I think the baffle itself should be stiffend. Struts on the back can be fitted to the original feet as well. DIY like that is not difficult. Still, I think one can do even more to than just that, like .......
495: Planar Speaker Asylum, RE: Magnepan Tympani IVa - $3700 (Sun Valley) (0.00)
Posted by Roger Gustavsson on 2019-04-25, 07:38:55 (207.189.194.245)
The MAgnepan XO-1 is just a capacitor in series with the mid/tweeter. You will need a low pass filter section too to have a crossover. The low pass often need to be a higher order filter and that make .......
496: Planar Speaker Asylum, RE: Mye Stands (0.00)
Posted by Roger Gustavsson on 2019-04-25, 04:06:44 (85.188.73.3)
Do the speakers wave when you play music? The 20.7 do not. The 3.6 neither. They vibrate a bit. The baffles are a bit flimsey. Maybe a strengthening can improve definition? Tympanis gain from separati .......
497: Planar Speaker Asylum, RE: My top 5 planer type speakers at AXPONA 2019 to listen too (0.00)
Posted by Roger Gustavsson on 2019-04-07, 22:09:43 (85.188.73.3)
hughp3 wrore: "I would like to see the PS aiudio also but the video thread went quit mid 2018?" No, there is a four part video on youtube, if you refer to PS Audio AN3. .......
498: Planar Speaker Asylum, RE: My top 5 planer type speakers at AXPONA 2019 to listen too (0.00)
Posted by Roger Gustavsson on 2019-04-07, 09:37:42 (85.188.73.3)
No idea, maybe Paul lektion it in the four part video. They will show this model, the PS Audio AN3: .......
499: Planar Speaker Asylum, RE: amps and power rating (0.00)
Posted by Roger Gustavsson on 2019-04-07, 05:41:44 (207.189.194.245)
It is a bit overkill (and expensive) to have static power doubling fron 8 to 4 Ohms. As music is not a static signal, like sinus into various loads, I think intemittent power is a better way for judge .......
500: Planar Speaker Asylum, RE: Hitting below the belt (0.00)
Posted by Roger Gustavsson on 2019-04-06, 09:17:32 (207.189.194.245)
Tympani basses are not subs but go down to about 30 Hz. They will not play very loud at the lowest frequencies but it will be good enough for most listeners. .......
Found total of 500 records, Query: , Author: Roger Gustavsson in All Forums, Time: 0 sec.