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1 Forum: Pi Speakers «» Posted on: Sat, 21 July 2012 11:03 «» By: Wayne Parham
Re: Pi7 Mid Horn Question's
I'd bet a month's pay that your anomaly at 80Hz is from standing waves in the room, or more likely from a reflection from the wall behind the speakers. They are similar issues, both self-interference from room boundaries. Those kinds of issues are rea...
2 Forum: Pi Speakers «» Posted on: Thu, 21 June 2012 13:34 «» By: thatsnasty
Re: 4PI Cabinet plans / question
Thanks for the quick response! Sealed center seems like a good idea then. It will keep the speakers looking "even" as opposed to offsetting the port either way in the center. I asked about the terminals because it'll likely cost more fo...
3 Forum: Pi Speakers «» Posted on: Thu, 21 June 2012 10:18 «» By: zheka
Re: 4PI Cabinet plans / question
what is the down side of doing sealed versions of 4PIs other than higher LF roll-off point? why do you not recommend going sealed for the L/R speakers? It is often said that sealed mains are easier to integrate in multisub setups when mains and subs...
4 Forum: Pi Speakers «» Posted on: Thu, 21 June 2012 09:32 «» By: Wayne Parham
Re: 4PI Cabinet plans / question
I've sent plans to your email address. Kits include the binding post terminal, but crossovers by themselves do not. The one we ship in the kits need a 2-1/8" x 2-7/8" hole cutout. The four π speaker and its crossover are specifically des...
5 Forum: Pi Speakers «» Posted on: Fri, 20 April 2012 20:37 «» By: Wayne Parham
Re: Grills for Eminence woofers, sound implications
In general, you can expect the effects to be more pronounced up high, so in general, the answer is yes. But do understand that the anomalies are caused by self-interference between sound coming from the source and sound reflected back from the grille. ...
6 Forum: Pi Speakers «» Posted on: Mon, 27 February 2012 21:27 «» By: Wayne Parham
Re: Baffle wall
It's good when they're back up against the wall, even better when embedded in it, baffle flush with the wall. The closer you can get a speaker to the boundary, the less problem from self-interference there is from it. But if you can't put it within a c...
7 Forum: Pi Speakers «» Posted on: Fri, 24 February 2012 18:31 «» By: Wayne Parham
Re: Surround Sound With TV Over Fireplace
Don't put the mains on top of flanking subs because that defeats the purpose. They need to be a few feet behind, below and beside the mains. Each flanking subs needs to be between the main speaker it's flanking and the nearest boundaries, in all three ...
8 Forum: Pi Speakers «» Posted on: Fri, 10 February 2012 14:45 «» By: Wayne Parham
Re: Grills for Eminence woofers, sound implications
I like using the metal grilles for speaker that are going to be used in clubs, where they are most vulnerable. They aren't very attractive, but they're tough and don't do much to affect the sound. Grille cloth stretched over an attractive frame is us...
9 Forum: Pi Speakers «» Posted on: Thu, 26 January 2012 08:06 «» By: Wayne Parham
Re: Subwoofer Crossover
I wouldn't set it for auto-equalization unless you connect an array of microphones that sample several points in the room. But you could surely use more than one microphone, and then I think it would work pretty well. You just don't want it to EQ b...
10 Forum: Pi Speakers «» Posted on: Mon, 24 October 2011 21:21 «» By: Wayne Parham
Re: Helper Woofer Location
Modeling won't show what we're trying to accomplish unless you do a room simulation. Most software I know of simulates a speaker in anechoic space or some simple radiating angle (e.g. halfspace). Room simulation software tends to see the source as a si...
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