MEADOWLARK AUDIO SHOP PICS

The wife says :: don't be surprised if you see one of your designs bearing another man's brand. Yeah, won't be the first time. Or the first time I've had a trademark poached.

This dead-simple 80Hz and below tower is all wired up and ready for the final glue up. I dare say that the Peregrine low bass system puts more bass ability onto a square foot than you've likely seen. It's the lower band of Peregrine's Dual Band Bass (TM) system.

As so cleverly observed by Arnie Nudell of Infinity and Genesis, an enclosure merely has to be nonresonant in the pass band. Pretty obviously this build would no be appropriate in the midrange. ;) ;) ;)

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@Pat McGinty I detest thieves. Hope your ideas receive respect and admiration, not theft. If I recall, you have two versions, this one with 4 front firing speakers and another with 2 front firing and 2 rear firing. How does each version sound different from the other? Are the designs meant to accommodate different size rooms or speaker placement?
 
@Pat McGinty I detest thieves. Hope your ideas receive respect and admiration, not theft. If I recall, you have two versions, this one with 4 front firing speakers and another with 2 front firing and 2 rear firing. How does each version sound different from the other? Are the designs meant to accommodate different size rooms or speaker placement?
Especially IP thieves, the lowest kind. I once was forced into conflict with a guy (still in the industry) who thought he could name his speaker KESTREL !!!! Nevermind that I had gone thru the trouble and expense of registering that mark, he believed that, since he had arrived at the same name independently, using it should be OK. I told the dolt that I'd rather he let himself into my home, make a sandwich and drive away in my car than swipe my ideas. He did desist. But, damn, if I hadn't registered it, I'd've surely been heading to court against that asshole to prove the fact that I owned it. Grrrrr.

Yeah, the force canceling variant must be placed pretty far from the wall. That said, running with all front firing has proven not to be the lesser choice, a little bit against my anticipation. Subjectively it's not less, not at all, not even a little. I expect most will be built front firing. It looks so damn brutal, ya gotta love it.

The sci-nerd in me had to make the force canceling design. Anymore, most of my work really packs the baffle with driver, at the expense of seeing the pretty wood. So, yeah, a nice chance to show a bit more glam.
 
The wife says :: don't be surprised if you see one of your designs bearing another man's brand. Yeah, won't be the first time. Or the first time I've had a trademark poached.

This dead-simple 80Hz and below tower is all wired up and ready for the final glue up. I dare say that the Peregrine low bass system puts more bass ability onto a square foot than you've likely seen. It's the lower band of Peregrine's Dual Band Bass (TM) system.

As so cleverly observed by Arnie Nudell of Infinity and Genesis, an enclosure merely has to be nonresonant in the pass band. Pretty obviously this build would no be appropriate in the midrange. ;) ;) ;)

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Trying to imagine the internal psi changes. Have you ever tried to physically measure the max increase? Ear popping, clearly.
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Trying to imagine the internal psi changes. Have you ever tried to physically measure the max increase? Ear popping, clearly.
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It's not about pressure. But the capacity to do idiotic pressures comes along for the ride when the objective is dynamic linearity; owing to the multiple drivers needed. Plus much of the bass capacity at hand is better directed towards extension. Although there is a tradeoff available in the processor to swap extension for output, only a fool would use that capacity in that way (if that fool were clever enough to understand and execute it!). Anyway, it's SOP around here is to limit output to within healthful levels in the processor.

Bass system design really is quite different in an active, compared to a passive. Sounds quite a bit different, too. ;)
 
Trying to imagine the internal psi changes. Have you ever tried to physically measure the max increase? Ear popping, clearly.
View attachment 123896
Well yeah, the pressure is alternating several times a second, so you'd need the correct device, an SPL meter. And, yes, I've looked at that but the pressures are out of range for any of the meters I've owned. You could figure it backward (very roughly) by the SPL in the room and the ratio of the volumes. Simply stated: half the driver's output heads rearward - so it's damn loud in there.
 
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