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130 Search Results Found |
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Forum: Pi Speakers «»
Posted on: Tue, 05 September 2006 12:40 «»
By: Bill Martinelli
Re: Learned some more audio truth outdoors
"My design philosophy is to design the speaker to sound right on axis and generate a uniform reverberent field"I dont fully understand what you mean. can you give some understanding and examples?
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Forum: Pi Speakers «»
Posted on: Tue, 05 September 2006 11:24 «»
By: Wayne Parham
Re: Learned some more audio truth outdoors
"The speaker needs to be tested and build for room it's intended to be used."My design philosophy is to design the speaker to sound right on axis and generate a uniform reverberent field. That makes them sound good just about everywhere. Using this appr...
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Forum: Speaker «»
Posted on: Wed, 30 August 2006 15:08 «»
By: Wayne Parham
Re: SPL measurement Formula?
Point sources fall off at a rate of 6dB per doubling of distance outdoors. This is the inverse of the square of the distance. Line sources falloff at the inverse of the distance, not the inverse squared. This makes falloff of a line source be 3dB per d...
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Forum: Pi Speakers «»
Posted on: Wed, 16 August 2006 23:17 «»
By: Wayne Parham
Re: xover
Sorry, no. Seems like I always strike out with you, Luis. I don't have a crossover design for a setup like that. You might want to re-think it though, because the midwoofer will have a very narrow pattern beyond 2kHz. Off-axis tonal balance will be po...
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Forum: Speaker «»
Posted on: Wed, 07 June 2006 14:30 «»
By: Wayne Parham
Re: Need help with room placement
My gut feeling is that the difference is mostly due to the collapsing DI of the 811 as opposed to more uniform DI of the 2370. This causes a difference of HF energy in the reverberent field.
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Forum: Speaker «»
Posted on: Wed, 07 June 2006 08:25 «»
By: Wayne Parham
Re: Need help with room placement
Could be that you need the extra energy in the reverberent field for your room, possibly more in the higher frequencies.
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Forum: Pi Speakers «»
Posted on: Fri, 28 April 2006 10:38 «»
By: Wayne Parham
Re: Corner Horn positioning "Sweet Spot" for listening...HELP
The "sweet spot" is actually a very large area of the room. That's one of the biggest advantages of the π cornerhorn configuration. The reverberent field is very uniform because off-axis response is the same as on-axis response. The best listening p...
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Forum: Speaker «»
Posted on: Wed, 29 March 2006 16:36 «»
By: Wayne Parham
Re: Speaker placement
If we were discussing crossover below 100Hz, I might agree with you that integration with the mains was less troublesome, although I certainly wouldn't consider it to be irrelevant. But you have already indicated that you crossover above this point. Tha...
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Forum: Pi Speakers «»
Posted on: Tue, 10 January 2006 12:41 «»
By: Wayne Parham
Re: Yes, and the pros and cons please.
The benefits of the π cornerhorn include constant directivity and a wide sweet spot in addition to all the other advantages of horn loading, i.e. increased efficiency, reduced distortion, etc. The sound source comes from a single location - the apex o...
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Forum: Pi Speakers «»
Posted on: Wed, 28 December 2005 09:38 «»
By: Wayne Parham
Uniform reverberent field
One of the key features of the π cornerhorn design is that all sound radiation is from sound sources with 90° flare angle. This provides very good coverage and also makes the reverberent field uniform throughout the entire audio spectrum, something that ...
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