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Old 24th November 2012, 04:40 AM   #31
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Well hell, Danley did exactly that and achieved 100 db full range
speakers. So it is a brilliant idea, but as usual nothing new (-:
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Old 24th November 2012, 04:58 PM   #32
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Join Date: Jan 2008
Originally Posted by peteleoni View Post
I'm.a geeky kind of guy, I don't know why I'm letting Hornresp intimidate me. Thanks.
The Synergy style horn can be simulated as an offset conical horn with bass reflex.
If the ports are located towards the mouth, the simulation should be fairly close to reality in the horn passband.
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Old 24th November 2012, 05:52 PM   #33
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Location: iowa
are we talking about a klipsch lascala ?

Something like that ?

There are ported W-bins (I had one), but the port doesn't firing into the horn (least ones I've seen).
The tuning frequency is probably way lower than what the horn mouth/length is loading at, so I doubt if it was ported into the horn, that it would have helped any.

here is a thread on porting W-bins.
Folded Horn W-Bin Porting
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Old 24th November 2012, 10:58 PM   #34
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No port on unmolested LaScala, all front loaded horn. Amazing speaker.
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Old 25th November 2012, 01:52 AM   #35
abcdmku is offline abcdmku  United States
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Location: Chicago
This post actually really excites me! A while ago I posted something about "a vented horn"
Heres a link to my post
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Old 25th November 2012, 05:50 AM   #36
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My guess is that it would shift the port freq way out of what it should be in free air. Think about it. The whole idea of a horn is that it serves as an acoustic transformer, to convert high pressure at a low volume of air motion to low pressure at a high volume of air motion. It's not a bad idea. I just don't think you can start with a system that was tuned for free air and stick a horn on it. If you had a way to measure things, you might be able to make adjustments to the port and box size to get it right.

Last edited by James Lehman; 25th November 2012 at 05:53 AM.
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Old 25th November 2012, 06:04 AM   #37
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Ok, we need a new iron law.(-:
I vote we call it Leoni's iron law. There's no such thing as a reasonable Porterhouse steak.
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