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393 Search Results Found |
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Forum: Pi Speakers «»
Posted on: Fri, 22 February 2013 15:45 «»
By: Wayne Parham
Re: One Pi Speaker
Yes, that's the one.
Don't lean it back like that. Keep the baffle normal (perpendicular) pretty much lined up with the listeners. The baffle normal is the centerline of the forward axis. Aim this at the listeners. Horizontal movement is fine, you...
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Forum: Pi Speakers «»
Posted on: Fri, 22 February 2013 13:39 «»
By: Wayne Parham
Re: 2Pi Towers First Listen
The crossover is the same for the two π and two π tower speakers. The only difference between the two is response below 100Hz.
The port is large and low, on the rear panel. Specifically, it's 4.5" diameter, centered 7" up from the bottom o...
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Forum: Pi Speakers «»
Posted on: Fri, 01 February 2013 13:21 «»
By: Wayne Parham
Re: Information about the 3 Pi Subwoofer
Those are good questions, thanks for asking.
The three π subwoofer is a good general-purpose subwoofer that covers the 20-200Hz decade. It was designed to be a high-quality subwoofer in a convenient size. It isn't specifically designed to be a flank...
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Forum: Pi Speakers «»
Posted on: Sun, 20 January 2013 17:11 «»
By: Wayne Parham
Re: 4 PI by Andy
There is no downside to lining the cabinet walls with acoustic damping material. I've had best luck with R13 insulation. So feel free to add it.
If you're concerned with midrange, you can also install a sheet that spans the cross-section. It seems ...
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Forum: Pi Speakers «»
Posted on: Sun, 20 January 2013 13:41 «»
By: zheka
Re: 4 PI by Andy
Thank you very much.
The box I am working on is also 10ft^3. The longest side is about 36" internal. It would not be used as true flanking sub but it may be low passed as high as 120Hz. If standing waves indeed form in this case, they would come ...
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Forum: Pi Speakers «»
Posted on: Sun, 20 January 2013 13:01 «»
By: Wayne Parham
Re: 4 PI by Andy
Damping material is not needed in traditional subs run outdoors, distributed subs in a multisub arrangement, or pretty much any subwoofer that is acoustically small. But that's a key: The subwoofer cabinet must be acoustically small, which means the lo...
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Forum: Pi Speakers «»
Posted on: Thu, 27 December 2012 22:50 «»
By: Wayne Parham
Re: 3pi, smaller cab possible?
I think that's probably worthwhile. being sealed will make it a little less vulnerable to standing waves, because there is no worry a port will lie on a pressure node. And smaller cabinets shift the internal standing waves upward in frequency, where th...
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Forum: Pi Speakers «»
Posted on: Thu, 27 December 2012 19:14 «»
By: Wayne Parham
Re: 3pi, smaller cab possible?
Changing the size of the baffle will alter the speaker's directivity at low to midrange frequencies. At low frequencies, the speaker radiates omnidirectionally but as frequency rises, the baffle begins to limit the radiation pattern to the forward-facin...
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Forum: Pi Speakers «»
Posted on: Thu, 29 November 2012 10:10 «»
By: Wayne Parham
Re: 4 Pi revisited first impression
Thanks for posting here. As I read your post, I remembered the days about ten or twelve years ago when many people on this forum were "doing their own thing" like this, maybe as many as half of the builders deviating from the plans in one way ...
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Forum: Pi Speakers «»
Posted on: Sat, 13 October 2012 16:34 «»
By: Wayne Parham
Re: 4 pi plans
You've got mail!
As for mods, please see the FAQ section about "Cabinet design". In particular, see the link called "Cabinet design, port placement and internal standing waves" and all those under that, down to "Altering dime...
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