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Big E Speakers Part 4 - Quadraphenia

So I've had an MAS 112, the Flex 210, and now I'm running a single MAS 109 with tweet. I'm missing that punch and mid range clarity of the 210, but I love the small form factor of the 109. SO I'm thinking about making the Bodai jump to the 110. I'm trying to get ahold of Mike though. Has anyone been able to reach him this week? Tried messaging and calling.

Edit: Mike just messaged me on here. Haha. Ignore...
Nothing to say except that I'm considering a Bodai 110 myself. I found the midrange, in my trial of it at Mike's place, to be beautifully open and clear and the cab in general to be nicely articulate -- you could say "punchy" in the sense that the notes had a nice pop, but I didn't find it to be voiced to emphasize any particular frequency range (not saying that it's necessarily 100% flat, but it struck me as being evenly voiced) whereas the Bodai 112 is, I believe, voiced to have some more meat in the upper bass (though nothing drastic, I think). Relative to the 109, I know that the "woofer" part of the Bodai 110's enclosure is a bit smaller (like the 10s in your 210 Flex) and therefore voiced for more pop and less "deep" -- the woofer is different, though, which would also have some effect. If the MAS 109 is comfortably loud enough for you, I think a Bodai 110 would be pretty cool. If you're pushing it, maybe the Bodai 112 -- more "grunt", somewhat more "voiced" than the 110(though in way I believe I'd like -- didn't get to open it up like I did the 110, but basing that on my experience with my MAS 112, on what I heard of the Bodai 112's midrange at low volume, and on conversation with Mike about the differences between the cabs), and about half-again as much displacement (though you've had a MAS 112, so you should have a pretty good idea of how loud it'll go).
 
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Yeah, that was good.
One difference I noticed was instead of talking about decorrelating the phase & time information, he says the last part of the cabinet before the ports realigns the phase / time information.
Maybe he wanted to avoid explaning decorrelating or did the design change?
My understanding is our brains actually do the recorrelating somewhat similar to how the brain resolves missing or weak low frequency fundamentals.
Am I misunderstanding or misrepresenting what's happening?
Mike A reached out to me in order to help clarify how the design works - here's what he said:
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You have to realign the back wave so that there are no phase cancellations. That's what the last portion does.
The decorellation occurs because while the rear wave is in phase with the front it is delayed because there is acceleration and decelleration in the various chambers. In a true transmission line what comes out of the port is delayed from what comes out the front. The length of the transmission line does this. The ear puts things back together and because the delay is small, the brain doesn't notice. But a true transmission line is VERY long to go to 40hz. And--a transmission line really only reinforces the lowest octave.So--our "virtual" transmission line delays the sound waves as a long transmission line does---it behaves like a transwmission line but at a fraction of the length. So--we've delayed the sound waves but we need to get them in phase with the front. That's what the last chamber does. Now---since the vortex delays things a bit--it's not so much that the ear doesn't reintegrate the front and rear waves into a coherent whole. That's the de-correlation. The small delay between the front and rear waves are decorrelated in time while the ear doesn't perceive it. It's the small delay that does it.

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Hope that helps everyone!
 
Mike A reached out to me in order to help clarify how the design works - here's what he said:
----------------
You have to realign the back wave so that there are no phase cancellations. That's what the last portion does.
The decorellation occurs because while the rear wave is in phase with the front it is delayed because there is acceleration and decelleration in the various chambers. In a true transmission line what comes out of the port is delayed from what comes out the front. The length of the transmission line does this. The ear puts things back together and because the delay is small, the brain doesn't notice. But a true transmission line is VERY long to go to 40hz. And--a transmission line really only reinforces the lowest octave.So--our "virtual" transmission line delays the sound waves as a long transmission line does---it behaves like a transwmission line but at a fraction of the length. So--we've delayed the sound waves but we need to get them in phase with the front. That's what the last chamber does. Now---since the vortex delays things a bit--it's not so much that the ear doesn't reintegrate the front and rear waves into a coherent whole. That's the de-correlation. The small delay between the front and rear waves are decorrelated in time while the ear doesn't perceive it. It's the small delay that does it.

----------------
Hope that helps everyone!
I'd be satisfied with "so the flux capacitor in the back does this magic decorrelate/recorrelate mojo... nah never mind, it's technical."
 
Mike is at it again! 2x8 Bodai:

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If anyone speaks with Mike, please post specs on the 2x 8" Bodai.

Nice form factor!

From Mike's FB post: 47lbs, 26" tall 16" wide 14 1/2 deep (the width and depth get progressively smaller as you move to the back of the cab) Around 780 cc's of air moved. To compare, the MAS46 or Bodai 110 are both 600 cc's.The Bodai 12 is around 900 cc's. A "super" 12 like Duke's, Barefaced or Fearless are a bit under 500 cc's. So---the B28 is halfway in between a single and 212 based on "super" 12's. It will likely beat any other 212's out there. The B28 will kill any 210---much closer to a 410. Deeper low end than any of my cabs. Two custom 8's, two Faital 4's and a Celestion compression driver. Deep, super punchy, VERY hifi from top to bottom.
 
Mike is at it again! 2x8 Bodai:

View attachment 2475531
When I visited Mike's place this summer, I liked the MAS 18 a lot and the bass with two stacked (the depth, amount available, and control) was ridiculous, but I liked the pristine, 3D mids of the Bodai 110 better. Mike mentioned then that he was thinking of doing a Bodai-format cab with two of the 8" woofers, but I had no idea that he'd move on it this soon (he and/or the Big E guys might have been further along in talks/prototyping than I realized, though).

Now that I think about it, the idea of a cab with two 8-inch speakers and vortex-loaded mids is something that came up in conversation a few years ago. I don't think it was practical at the time, for whatever reason -- and, had he attempted it then, it might not have been executed with the same degree of refinement which, from hearing the Bodai 110, I presume this one is -- but the wheels are always turning, it seems -- even more going on under the surface than in the rapidly evolving forefront.

I've played a bunch of cabs that I've liked, and am gaining a broader appreciation lately for what different gear (from different eras, different approaches) brings to the table -- and everyone will have their own preferences regarding voicing, etc. -- but, in a live setting, I've still never played anything that does quite what Mike's cabs do.

Do you know if these are the same 8" woofer he's using in the new 18 cab?
I think so, but I'm extrapolating from the conversation above. You would have to ask Mike to be sure.
 
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I've played a bunch of cabs that I've liked, and am gaining a broader appreciation lately for what different gear (from different eras, different approaches) brings to the table -- and everyone will have their own preferences regarding voicing, etc. -- but, in a live setting, I've still never played anything that does quite what Mike's cabs do.

I would have to agree. Every time I get the itch to try some new cab, I always end up preferring Mike's. They are something special.