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392 Search Results Found |
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Forum: Pi Speakers «»
Posted on: Sun, 15 July 2018 18:24 «»
By: joshua43214
Re: Build Thread: 2Pi Towers, 6Pi Corner horns (and possibly a sub and center)
Dealing with the throat of the flare is something I spent quite a bit of time thinking about. I read about every paper published for free on horn theory, and learned a huge amount in the process. It seemed self-evident that having sharp edges where sound e...
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Forum: Pi Speakers «»
Posted on: Tue, 03 July 2018 14:20 «»
By: Wayne Parham
Re: Alternate port shape for Four Pi cabinet
Look at the following two threads:
Altering dimensions
Cabinet design, port placement and internal standing wavesIn the second thread, there is a modified design that was tested and so I feel comfortable with it. The builder's name is Nick, and he use...
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Forum: Pi Speakers «»
Posted on: Tue, 22 May 2018 16:00 «»
By: Wayne Parham
Re: On Fence
You've got mail!
One note - When contemplating mods, please see the following threads from the FAQ:
Altering dimensions
Cabinet design, port placement and internal standing waves
Damping material placement
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Forum: Pi Speakers «»
Posted on: Sun, 13 May 2018 12:17 «»
By: Wayne Parham
Re: 3Pi Sub plans, and some other questions.
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Vented and sealed subs are generally pretty tolerant of modifications. They are acoustically small, so standing waves don't setup inside. So basically, as long as the internal volume and port remain the same, you can expect performa...
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Forum: Pi Speakers «»
Posted on: Fri, 04 May 2018 18:10 «»
By: Wayne Parham
Re: Questions about Pi Speakers
I agree with you. One of the first things I observed was that high-efficiency loudspeakers were preferable to speakers with lower efficiency. I'd say sensitivity it's second only to tonal balance in importance. Next would be directivity followed by ...
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Forum: Pi Speakers «»
Posted on: Wed, 11 April 2018 09:37 «»
By: Wayne Parham
Re: Dimensions clarifications
Those bass bin mods will be just fine. I get really cautious with mods on cabinets that are exposed to midrange content, because midrange standing waves can create issues. But the bass bin of the constant directivity cornerhorns is insensitive to these...
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Forum: Pi Speakers «»
Posted on: Sun, 01 April 2018 11:33 «»
By: Wayne Parham
Re: Cabinet Doors, 3Pi changes and Plan Request
You've got mail!
As for the cabinet and doors, I think you understand the issues well, and you'll just have to investigate the situation using the knowledge you already have. As you mentioned, the two main things are acoustic size of the discontinuit...
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Forum: Speaker «»
Posted on: Thu, 24 August 2017 09:16 «»
By: Wayne Parham
Re: Jbl 2226h pair for subwoofer
Yes, put a pair of 2226 drivers in a 10ft3 box. Dimensions aren't critical, provided it's a rectangular box with no single dimension extremely long. I'm not concerened about internal standing waves above 100Hz because it's a subwoofer, so you'll low-pa...
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Forum: Speaker «»
Posted on: Fri, 05 August 2016 15:34 «»
By: Wayne Parham
Re: The Science Of Hearing
When one studies physics, they study the properties of waves. Especially when looking at acoustics, you'll see there are standing waves, Helmholtz resonators and all sorts of mechanical and acoustic filters. There are electrical resonators and filters ...
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Forum: Speaker «»
Posted on: Mon, 18 July 2016 10:46 «»
By: Wayne Parham
Re: Mono "flanking sub"
Subwoofer cabinet shape isn't really important because the cabinet is acoustically small. Standing waves cannot setup inside.
Welti started off doing just position but later added equalization. Geddes proibably followed suit. It's an Nth degree thi...
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