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77 Search Results Found |
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Forum: Pi Speakers «»
Posted on: Mon, 26 August 2002 00:13 «»
By: Wayne Parham
Cornerhorn angles, dispersion and stuff
There is no reason you can't rotate the horns from their natural 45° orientation. It is sometimes the best thing to do in rooms that are very long and narrow. But one of the main features of the π cornerhorn is matched angular coverage of each subsyst...
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Forum: Pi Speakers «»
Posted on: Fri, 16 August 2002 10:20 «»
By: Wayne Parham
Cornerhorns!
I really like the π cornerhorn configuration, for lots of reasons. The gain you can expect is 9dB over free-space or 6dB over half-space. The area expansion from the room's corner apex is equivalent to a rectangular straight-walled horn with 70° flare...
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Forum: Pi Speakers «»
Posted on: Mon, 27 May 2002 07:42 «»
By: Wayne Parham
Re: How about the sound of CD horns then?
Axisymmetric CD horns sound midrange heavy and require equalization to sound right. I prefer 90o radial horns, which provide constant directivity in the horizontal plane. That ensures room coverage is good and the reverberent field is uniform. But it do...
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Forum: Pi Speakers «»
Posted on: Mon, 27 May 2002 00:55 «»
By: Wayne Parham
Re: Sound characteristics of different horn flares and materials
I prefer 90x40 horns because they provide a good pattern in-room, especially when used in cornerhorns. That's a unique situation because directivity is equal throughout the entire audio band if all horns have a 90 degree pattern. This makes the reverbere...
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Forum: Pi Speakers «»
Posted on: Sat, 04 May 2002 09:07 «»
By: Wayne Parham
Re: Differences between "normal" of "horn"-type active filter.
There are several thing to consider when setting up your loudspeaker system and its crossover and contour electronics:1. The electro-mechanico-acoustic response of the driver(s)2. The acoustic filter function of the cabinet/horn/chamber(s)
3. The direct...
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Forum: Pi Speakers «»
Posted on: Fri, 28 December 2001 10:20 «»
By: Wayne Parham
Re: Is this horn flare suitable for PSD2002?
If I were planning to use a tweeter horn with a different pattern, I'd crossover at a different frequency to maintain DI matching. If the tweeter horn pattern is more narrow, crossover higher; If wider, crossover lower. The idea is to crossover in the f...
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Forum: Pi Speakers «»
Posted on: Wed, 26 December 2001 21:40 «»
By: Wayne Parham
JBL specifications documents and whitepapers
Both the 2370 and the 2344 provide constant directivity, so they'll each need 6dB/octave compensation above 5kHz or so. This is provided in the Pi crossover, via the R1/R2/C1 top-octave compensation network. However, the 2370 and 2344 have different radi...
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Forum: Pi Speakers «»
Posted on: Sat, 15 December 2001 09:44 «»
By: Wayne Parham
Two-way vs. Multi-way
There are pros and cons of both approaches. Multi-way tends to improve extension at both ends of the audio spectrum and it reduces intermodulation distortion. Two-way tends to improve phase distortion which in turn improves response by reducing ripple. ...
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Forum: Pi Speakers «»
Posted on: Fri, 23 November 2001 22:02 «»
By: Wayne Parham
Re: Klipschorn vs. Seven Pi with JBL drivers
Remember to consider the source. If you ask for an opinion on the Klipsch forum, I wouldn't be surprised to hear responses favorable to Klipsch. Same is true here.That said, I've always liked the Klipschorn and in fact, it was what really inspired the π ...
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Forum: Pi Speakers «»
Posted on: Wed, 01 August 2001 18:03 «»
By: Wayne_Parham
Re: H290 vs CH3
Both the CH-3 and the H290 are good horns. They each have pros and cons. The CH-3 does look flimsy, I agree. When I first saw it, I was skeptical about its performance. But it provides amazingly flat response and good coverage. The CH-3 has a diffract...
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