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446 Search Results Found |
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Forum: Speaker «»
Posted on: Thu, 27 October 2011 07:16 «»
By: AudioFred
Re: Constant Directivity Speakers Using DSP
Thanks, Wayne and Bill, for the feedback. The tweeter issue is solved. Each amp has a volume control, and I turned the tweeter amp's volume down and readjusted the dbx's tweeter attenuation to compensate. The hiss I described would be inaudible with the ty...
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Forum: Speaker «»
Posted on: Wed, 26 October 2011 21:02 «»
By: Wayne Parham
Re: Constant Directivity Speakers Using DSP
As you know, this is a design approach that I'm very experienced with. The Econowave borrows heavily from my designs, and I see the builders of those speakers as kindred spirits. In fact, the configuration you describe is exactly the same as my three π...
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Forum: Speaker «»
Posted on: Wed, 26 October 2011 20:43 «»
By: Bill Wassilak
Re: Constant Directivity Speakers Using DSP
Fred said: The only issue I've found is that the tweeters with no L-Pad are so sensitive that they pick up an audible sustained "sssssss" sound from the amp. I would imagine at room filling volume levels I'm probably using less than one watt from...
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Forum: Speaker «»
Posted on: Wed, 26 October 2011 18:19 «»
By: AudioFred
Constant Directivity Speakers Using DSP
Lately I've been experimenting with a dbx Driverack PA+ loudspeaker management system. The PA+ is an amazing signal processor that retails for $500. Many audiophiles would sneer at the idea of introducing a $500 product into the signal path of a high end s...
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Forum: Pi Speakers «»
Posted on: Thu, 20 October 2011 09:24 «»
By: Wayne Parham
Re: 6 Pi
As you know, the response of the three π loudspeaker is very smooth and distortion is low. But so is the six π cornerhorn, and it has the advantage of true constant directivity, with reflection-free wavefront propogation. That's a real big deal.
One...
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Forum: Pi Speakers «»
Posted on: Sun, 16 October 2011 12:00 «»
By: Wayne Parham
Re: What center channel speaker with 7π's?
With the corners that close together, I'd probably not use a center channel. Imaging from constant directivity cornerhorns is magical in rooms like that. They're kind of like really large headphones, making the illusion of sound source locations spread...
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Forum: Pi Speakers «»
Posted on: Sun, 16 October 2011 08:49 «»
By: Wayne Parham
Re: AE Drivers
I've always noted my fondness of the constant directivity cornerhorns, saying things like "nothing else can beat this setup." I feel quite strongly that it is the best configuration possible for home hifi or home theater. The only downside is...
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Forum: Pi Speakers «»
Posted on: Wed, 12 October 2011 12:48 «»
By: Wayne Parham
Re: Speaker placement and wavefront launch
Absolutely, the woofer in a constant directivity cornerhorn runs up to around ~300Hz, with a gradual first-order rolloff. It overlaps with the midhorn from 100Hz to 300Hz, smoothing the vertical modes. It gives a full, rich body to the fundamentals in ...
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Forum: Pi Speakers «»
Posted on: Wed, 12 October 2011 00:19 «»
By: Wayne Parham
Re: Speaker placement and wavefront launch
Most of the dipole and planar folks I know tout the side-cancelling nature as helping reduce side wall reflections. This is true, since they have what is effectively about 120° radiation, and there is very little radiating straight out to the sides.
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Forum: Pi Speakers «»
Posted on: Tue, 11 October 2011 23:52 «»
By: Wayne Parham
Re: 7pi cabinet plan request
If you don't have good acoustic measurement gear and experience using it, don't attempt a crossover (re)design. I've put a lot of time into these designs, and the crossovers are optimized to as close to pefection as is possible.
I don't want to disco...
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