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495 Search Results Found |
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Forum: Pi Speakers «»
Posted on: Thu, 14 August 2008 11:24 «»
By: Wayne Parham
Re: Treatment for a cancellation notch - Multiple subs
The best thing to do is to add subs. I think you and I discussed this before, but just to be sure I'll hit the high points. The idea of adding subs isn't just to augment the low end but also to smooth room modes. Having just two subs added to the two b...
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Forum: Pi Speakers «»
Posted on: Thu, 14 August 2008 10:30 «»
By: PaulW
Treatment for a cancellation notch?
The passive treatment for room modes is going ahead slowly and the speakers are sounding better with each iteration and as I add hi-frequency diffusion the treble just gets better and better (ceiling panels next). Based on my quick and dirty measurements...
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Forum: Pi Speakers «»
Posted on: Wed, 13 August 2008 19:30 «»
By: PaulW
In room response
Today I had a little play with a basic SPL meter and some test tones and was reasonably gratified that the expected room modes were present at the calculate frequencies, so I can work on those. What was a totally unexpected was an -18db hole at 45hz! An...
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Forum: Pi Speakers «»
Posted on: Tue, 12 August 2008 23:17 «»
By: Wayne Parham
Re: Not in my house!
Yeah, that's too big. Hmm. I just don't think they'll work well on an open baffle. You could sure try it, but I don't think it's gonna make soup.Is an in-wall infinite baffle an option? If you're renting, probably not. And I'm not sure it makes good ...
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Forum: Speaker «»
Posted on: Mon, 07 July 2008 14:24 «»
By: Wayne Parham
How about multiple smaller subs?
I would opt for more subs, not larger. That will allow you to smooth room modes. My suggestion would be to use four smaller subs and position them where CARA shows will give you the smoothest bass throughout the room. An example would be four LAB12 woo...
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Forum: Pi Speakers «»
Posted on: Thu, 26 June 2008 18:18 «»
By: Wayne Parham
π cornerhorn behavior
The π cornerhorn reaches pretty high because of its simple design. It provides useable output over the woofer's entire range.On casual inspection, one would expect a self-cancelling reflection notch in amplitude response at the frequency where the woofer...
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Forum: Pi Speakers «»
Posted on: Wed, 25 June 2008 15:52 «»
By: Matts
Re: 7 Pi bass cabinet
Paul, So far, much of what you're experiencing seems to me to be normal for new speakers. I'd wait until you have 100 hours or so on them to tinker too much. Have you tried the 8-ohm taps? You'll be shocked at what the upgraded iron does over the whole...
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Forum: Pi Speakers «»
Posted on: Fri, 20 June 2008 14:56 «»
By: Wayne Parham
Four π and room interactions
The heat sink on the front of the Kilomax is one of the reasons I stopped using them. I love the idea of pole piece wicking, but don't much care for the idea of putting the heat sink in front of the cone. In fact, I have a patent applied for a pole piec...
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Forum: Pi Speakers «»
Posted on: Fri, 20 June 2008 12:53 «»
By: Colin
Re: Room modes
Thanks for the response Wayne; what you say makes allot of sense. I'm just left wondering if it really applies to me.I should take a picture and post it so you could see my basement layout. The room is actually rather well-damped. Left side wall is flo...
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Forum: Pi Speakers «»
Posted on: Fri, 20 June 2008 12:13 «»
By: Wayne Parham
Room modes
Basements are usually very difficult to get sounding right because the walls are so rigid. Room modes are pronounced, making a resonant condition that sounds like singing in a shower. Some bass and midbass notes are way over-represented, others aren't t...
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