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275 Search Results Found |
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Forum: Pi Speakers «»
Posted on: Sun, 04 June 2023 23:02 «»
By: Wayne Parham
Re: Jbl 2226h and 2447h
Yes, close, 38Hz actually. And the positions of the driver, port and internal damping material are also optimized to minimize the effects of internal standing waves.
In a cabinet this size, that's very important. It's arguably more important than th...
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Forum: Pi Speakers «»
Posted on: Mon, 03 April 2023 09:04 «»
By: Wayne Parham
Re: Am I in the Right Place?
I think 2226 drivers would be perfect for a build like that. They offer high-efficiency, high-power and high-quality sound as a direct radiator.
They're also pretty easy to work with in that they have a smooth and extended response curve, having a we...
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Forum: Pi Speakers «»
Posted on: Tue, 23 August 2022 09:09 «»
By: Wayne Parham
Re: My 3π adventure
I meant to add some comments about the Helmholtz frequency in each of my responses above, but forgot. It was more important to me to discuss the use of flanking subs and multisubs, and the reasons for needing them. So I became involved in those respons...
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Forum: Pi Speakers «»
Posted on: Wed, 17 November 2021 09:38 «»
By: Wayne Parham
Re: Aztec Monet Cabinets
The midwoofers used in the four Pi models work well in 2ft3 to 5ft3 cabinets with Helmholtz frequency between 35Hz and 40Hz. So that part is pretty easy.
It's dealing with the internal standing waves that's tricky.
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Forum: Pi Speakers «»
Posted on: Sun, 07 November 2021 08:26 «»
By: two.dogs
Re: Aztec Monet Cabinets
My Monet cabinets are still in my bedroom staring at me. I've done some studying but don't think I'll turn into a speaker designer overnight. Did some web searching to look at other large speakers from back in the day. Aztec Valencia caught my eye. But wav...
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Forum: Pi Speakers «»
Posted on: Sun, 03 October 2021 14:14 «»
By: Wayne Parham
Re: 4pi build with stands finally realized
Your measurements look good, congratulations! I feel better about that 2226H cone now, because the measurements appear in line with what I expect from the OEM.
As for box tuning at 35Hz, that's not bad at all. The expected Helmholtz frequency is 37H...
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Forum: Pi Speakers «»
Posted on: Tue, 20 July 2021 10:52 «»
By: Wayne Parham
Re: 4 Pi Build in San Luis Obispo - Settings for Flanking Subs
It never hurts to use a high-pass filter for vented subs set at or just below the Helmholtz frequency. So if your sub cabinets are tuned to 20Hz, set a fourth-order high-pass at 15-20Hz.
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Forum: Pi Speakers «»
Posted on: Fri, 26 March 2021 14:17 «»
By: Wayne Parham
Re: 4 Pi Build in San Luis Obispo - Parts Arrived, Got a Router Jig
I've often used a rule-of-thumb to make the minimum spacing between a port and a nearby boundary to be equal to the port diameter.
But I've also found many times where this wasn't needed.
The Helmholtz resonance isn't affected much by having bounda...
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Forum: Pi Speakers «»
Posted on: Thu, 25 March 2021 16:25 «»
By: Wayne Parham
Re: 4 Pi Build in San Luis Obispo - Parts Arrived, Got a Router Jig
Nice work so far. And man, I hear you about the "things get in the way" issue when doing projects. I always have several projects underway, and like you, I have several disruptors. But I always try to remember that a mountain is climbed one ...
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Forum: Pi Speakers «»
Posted on: Wed, 10 March 2021 19:11 «»
By: Wayne Parham
Re: Aztec Monet Cabinets
I would look for a woofer that will work well in that size box. The vent can be changed, so that doesn't need to be seen as a constant but you might be able to find a woofer that works well with that Helmholtz frequency. So calculate the Helmholtz freq...
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