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High Efficiency Speaker Asylum: Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) by Volvotreter Need speakers that can rock with just one watt? You found da place. |
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In Reply to: Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) posted by eso on February 18, 2006 at 08:52:54:
hi eso,
when you tweaked your horns backchamber what did you do: did you tune to let it resonate at the horns flare frequency (70Hz in your case) or did you tune lower and measure (and again tune and measure) to squeeze out the max?When doing the simulations, I noticed that it seems is acutally not possible to shift the lf knee. You can choose either higher SPL with a steep slope or a more gradual rolloff but with lower SPL at the LF knee. However, this is only simulation. Don't know how this turns out in real life.
Because of the 15L's relative low mass roll-off frequency, I think a longer folded horn would not be a good choice since I have to cross to the mids @ 500Hz or so. 1m overall length is the max. tolerable for me. So I ended up with the 77Hz mouth. Question is wether or not this might be low enough to get nice kickdrums?
best regards.
Erik
PS: would love to sneak into your midbass to see how it's folded
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Topic - Tractrix vs. hypex vs. conical - corrected (long with pictures) - Volvotreter 08:11:26 02/18/06 ( 85)
- driver parameters off ?... - coolin 07:32:17 02/19/06 ( 2)
- Modeling - dwkurfma 11:39:54 02/20/06 ( 0)
- Re: driver parameters off ?... - Volvotreter 10:54:09 02/19/06 ( 0)
What I said before - EGeddes 19:08:35 02/18/06 ( 62)
- Re: What I said before -- ultra what-if question - freddyi 05:57:15 02/19/06 ( 61)
- Re: What I said before -- ultra what-if question - Scholl 14:00:03 02/19/06 ( 0)
- Love "GodZilla vs. Stone Cold" :-) - Homme De Terre 13:20:07 02/19/06 ( 1)
- Addendum on "IE" - Homme De Terre 13:40:34 02/19/06 ( 0)
LF horns - EGeddes 08:04:15 02/19/06 ( 57)
- Bass horns work great - Kloss 04:47:26 02/20/06 ( 0)
Re: LF horns - tomservo 15:59:56 02/19/06 ( 35)
- We disagree on a couple of points - EGeddes 16:49:34 02/19/06 ( 34)
- Wait just a minute.... - Jon Risch 17:39:44 02/23/06 ( 3)
- Re: Wait just a minute.... - EGeddes 18:44:12 02/23/06 ( 0)
- Re: Wait just a minute.... - EGeddes 18:40:11 02/23/06 ( 1)
- I read it again, and.... - Jon Risch 19:31:21 02/26/06 ( 0)
JAES Article - dwkurfma 20:31:01 02/19/06 ( 4)
- Re: JAES Article - EGeddes 05:40:46 02/20/06 ( 3)
- Re: JAES Article - dwkurfma 11:32:51 02/20/06 ( 2)
- Good paper - EGeddes 12:06:48 02/20/06 ( 0)
- Re: JAES Article - EGeddes 11:59:35 02/20/06 ( 0)
Re: We disagree on a couple of points - tomservo 20:11:02 02/19/06 ( 24)
- One more thing - EGeddes 06:54:53 02/20/06 ( 7)
- so the only right way is a CD horn with your 15in bass cab? - Kloss 04:04:58 02/21/06 ( 6)
- Its the best way - EGeddes 05:36:59 02/21/06 ( 5)
- Good, I'll buy a Peavey - Tom Brennan 06:40:03 02/21/06 ( 4)
- Actually - Jon Risch 16:54:01 02/23/06 ( 2)
- Yeah, but those are $1400 EACH! - Ivan303 16:58:39 02/24/06 ( 1)
- Naw - Jon Risch 10:06:03 02/27/06 ( 0)
- Thxs Tom was going to get EGeddes loudspeakers - Kloss 08:00:48 02/21/06 ( 0)
Re: We disagree on a couple of points - EGeddes 05:37:42 02/20/06 ( 15)
- Re: We disagree on a couple of points - tomservo 06:52:44 02/20/06 ( 14)
- Re: We disagree on a couple of points - EGeddes 07:04:16 02/20/06 ( 13)
- Re: We disagree on a couple of points - tomservo 11:18:26 02/20/06 ( 12)
- Re: We disagree on a couple of points - EGeddes 11:57:31 02/20/06 ( 11)
- Re: We disagree on a couple of points - eso 15:29:00 02/20/06 ( 1)
- Re: We disagree on a couple of points - EGeddes 15:58:36 02/20/06 ( 0)
- Re: We disagree on a couple of points - tomservo 14:52:28 02/20/06 ( 8)
- Re: We disagree on a couple of points - EGeddes 16:19:03 02/20/06 ( 7)
- Re: We disagree on a couple of points - tomservo 17:58:56 02/20/06 ( 6)
- Re: We disagree on a couple of points - EGeddes 18:29:05 02/20/06 ( 5)
- Re: We disagree on a couple of points - tomservo 09:37:17 02/22/06 ( 1)
- Re: We disagree on a couple of points - EGeddes 11:00:41 02/22/06 ( 0)
- Re: A words on context, or lack thereof... - eso 22:29:04 02/20/06 ( 0)
- a couple of dumb questions - pg 20:06:00 02/20/06 ( 1)
- This is a subjective question - EGeddes 05:33:59 02/21/06 ( 0)
Re: "no way to make a "good" and practical LF horn." - Ivan303 09:37:42 02/19/06 ( 1)
- Re: "no way to make a "good" and practical LF horn." - EGeddes 12:55:48 02/19/06 ( 0)
Re: LF horns - Tom Brennan 09:12:08 02/19/06 ( 17)
- First off - EGeddes 13:09:20 02/19/06 ( 7)
- Re: First off - Tom Brennan 15:02:14 02/19/06 ( 6)
- Thanks Tom - EGeddes 16:11:54 02/19/06 ( 0)
- Geez Tom.... - Homme De Terre 15:32:17 02/19/06 ( 4)
- Re: Geez Tom.... - Tom Brennan 18:19:15 02/19/06 ( 3)
- Re: I still miss Mike Bates and Romy. - Ivan303 19:30:52 02/19/06 ( 1)
- Re: I still miss Mike Bates and Romy. - eso 21:58:57 02/21/06 ( 0)
- Manfred actually means "Man of Peace", did you know that? :-)(nt) - Homme De Terre 18:23:11 02/19/06 ( 0)
Re: LF horns - Rapid 10:03:23 02/19/06 ( 3)
- Re: LF horns - Tom Brennan 11:33:39 02/19/06 ( 2)
- Re: LF horns - Steve Eddy 11:48:31 02/19/06 ( 1)
- Toupee...err...touché. :-D (nt) - Homme De Terre 13:23:47 02/19/06 ( 0)
Re: I just got out the 60lb jackhammer... - eso 09:34:00 02/19/06 ( 4)
- Re: I just got out the 60lb jackhammer... - Don Bunce 18:16:11 02/21/06 ( 1)
- Re: I just got out the 60lb jackhammer... - eso 21:53:41 02/21/06 ( 0)
Iam glad this forum exists to save me from myself. - Kloss 05:18:09 02/20/06 ( 0)
Re: I just got out the 60lb jackhammer...stay-free mini-pad? - freddyi 09:39:13 02/19/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - John Sheerin 14:43:46 02/18/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - eso 08:52:54 02/18/06 ( 10)
- Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - EGeddes 19:04:11 02/18/06 ( 5)
- Measuring horns... - Rapid 03:23:50 02/19/06 ( 4)
- Re: Measuring horns... - EGeddes 07:57:34 02/19/06 ( 3)
- Interesting... - Rapid 09:57:28 02/19/06 ( 2)
- Re: Interesting... - EGeddes 13:00:22 02/19/06 ( 1)
- Thanks (nt) - Rapid 13:23:15 02/19/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - Volvotreter 02/18/06 12:28:22 02/18/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - freddyi 09:03:27 02/18/06 ( 2)
- Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - eso 09:11:51 02/18/06 ( 1)
- Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - freddyi 09:31:51 02/18/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - Walt 08:24:28 02/18/06 ( 6)
- second generation pictures? - coolin 07:50:16 02/19/06 ( 1)
- Never mind.. - coolin 07:53:34 02/19/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - Volvotreter 12:32:44 02/18/06 ( 2)
- Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - Walt 14:17:42 02/18/06 ( 1)
- Hi walt - toxicport.e 17:33:38 02/18/06 ( 0)
Re: Tractrix vs. hypex vs. conical - corrected (long with pictures) - freddyi 08:37:16 02/18/06 ( 0)