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Craig, Just as the 12" driver seems to be the choice of many ported sub designers, I've always felt that the 15" best suited the sealed sub design. As a person who has designed and built a couple of dozen smallish, high powered Eq'd sealed subs, trying to wring every ounce of clean...

Craig, Glad you liked the movie. To refresh my memory: * 24"W X 22"D X 19"H (Footprint = 3.7 square feet). * 100 pounds (not including the separate amp, which goes in the equipment rack). * Basic Black, or solid hardwood panels on the front, available in oak, cherry, walnut, rose...

Quote from Ed's review... "It is common knowledge the TV-12 Ultra driver has about a 1.5-2.0 dB advantage in clean output over the dB-12 Plus driver. But that doesn't tell the whole story. Anyone who has heard the TV-12 driver will tell you it definitely has a unique sound. Superlatives like...

TV, So, the reason for the sonic difference in the ultra driver would be "...FR, THD, dynamic compression, ect."? Please excuse me if that explanation isn't at all easy to grasp. When I read the B2U review on this forum, I didn't see any of the test comarisons you list. Rather, I read...

Craig, There is no doubt in what you're saying. I've modeled, built, placed, phase aligned and calibrated dozens of ported and sealed subs in my HT. If I had asked someone else to do the set up and measurements, using a step by step guideline and exactly the same source material and...

Craig, That's been my experience. Good sealed sub, move it out of the corner, calibrate by ear using an acoustic upright walkin' bass...then put the measurements to the system. Let me know if you had it calibrated hot at all when you do the numbers. Very nice graph by ear, no matter...

Quote: "The question becomes where you put it to use." _____________________________________ ...Indeed. Playback of the entire system, assuming proper calibration, would be deafening. People who posted a year ago relating 'hitting 120 dB' during playback of such-and-such movie or music...

Mr. D, 'Man On Fire'...highly recommended, do give it a spin and let me know what you think. Craig, Great stuff...thanks. With the 2 additional ports closed on the B4+, it should pretty darned well mimic a sealed sub (a BIG, twin push-pull 4X12 sealed sub at that) with music program...

Craig, Very cool, and just what I was suspecting your thoughts might be to this point. Please take the time to post a detailed stream of thoughts, if you get the time in your busy schedule. The amp, the connection scheme, the cabinet, crossover point, associated equipment, is the finish...

John Kotches has, IMO, coined the phrase of the decade... ...'Stupid Hot'...I LOVE that. During the last 3 trips to CES in Vegas, I've lamented the 'rigged' demos, meaning a smallish space with no openings, save a door that's closed for the demo, yeilding a relatively very sealed...

Craig, Very cool that you're finally up and runnin'. I have 2 -1X15" sealed subs and 2- 2X15" (push-push) sealed subs. I'm very familiar with them, and I can say for sure that the 1X15", downward firing sub, definitely moves the floor. I'm a big Tim Bogert fan (Vanilla Fudge, Beck...

Suspense is drag...a 15" sealed beauty from ACI...fire that thing UP!...I'm READY!!

The reason I look forward to this evaluation of the Maestro is in the same vein as Mark's comment regarding a good sealed design in the average Home Theater. Actually, there are many reasons. Ported and PR subs are extremely limited below tuning, which itself is limited by size parameters...

Craig, Sounds like a plan. IIRC, your B4 thingy is placed nearfield? Then the Ref room, yeah, sounds like a plan...although...I'm sorta diggin' the MD authorized tortue test plan, also. :cool: BTW, is it me, or is this Mark Seaton guy as impressive as I think he is?? (I'm gonna sneak in...

Mark, What do you think 'reference level' is at 5-10 Hz? What sort of room gain might apply at these frequencies? What does a ref level 8 Hz tone do as regards IMD/cone distortion, etc., when the sub is also playing everything else that's recorded up to and on the other side of the...

Brian, Ahhh, stuffing. If you've got what, 3 or so pounds of polyfill? OK, .63 I buy. Thanks for pointing that out. Craig...How it SOUNDS is what matters...and since no one else will devise a 'Sonic Signature' list of measurements that correlate to descriptive terms that translate to...

I agree that it's a beautiful thing! The Tumult is an exception, even though I would think it's closer to .7 than .6 in 2 1/2 cubes. Check that...the Tumult is THE exception. Not familiar with the Blueprint except for a vague memory. Has it been around for a long while? The only company...

Curious to know why it would be interesting to measure Group Delay if it's inaudible? With the EQ boost, the GD will actually improve to about 30 Hz, (which is where it matters subjectively) and then it shouldn't increase more than a couple of ms below that. I'm sure the amp will clip...

Craig, Don't cross the B4+ off the list yet...the thought of a monstrous black box that will play incredibly loud in my 3.500 cu ft room at a frequency I can't hear is definitely intriguing to me, yet, I keep stumbling over that darned amp clipping/dynamic compression thingy keeping me from...

Craig, I've learned many things from Edward over the past 2 or so years. He's a great guy. I know I've sent him scurrying to the library a couple of times, and he always comes back with the good stuff. He has done the same to me quite a few times and I find that the good stuff always...

Oh hell, Craig, just put a camcorder in front of your test equipment and go on vacation while it records the data... I just found out that how it actually sounds doesn't matter. In fact, if it can't hit 121 dB 'cleanly' at 20 Hz, we can all just cross it off the list, so do that test...