21" inch subs? Those are for wussies! You need one of these! - AVS Forum
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post #1 of 16 Old 08-02-2012, 08:30 AM - Thread Starter
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http://www.ebay.com/itm/Electrovoice-30W-30-Woofer-Electrovoice-Factory-Restored-/140811259612?pt=Speakers_Subwoofers&hash=item20c9014edc#ht_903wt_1270

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post #2 of 16 Old 08-02-2012, 11:59 AM
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That thing probably has 1mm xmax.
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post #3 of 16 Old 08-02-2012, 12:11 PM
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The reason that thing is going for $2,500 is because it is a collector's item. Only someone with one of those "antique" subs would have any interest in that thing. There are a couple of web sites for people interested in vintage audio equipment:

http://www.soundsclassic.com/

http://www.classicaudio.com/

The people who actually buy from these sites know how much money it takes to engage in vintage audio. Some of the greatest pieces ever include the JBL Everest, and there are many more that make those who collect (and use) these items just drool...
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post #4 of 16 Old 08-03-2012, 03:17 PM - Thread Starter
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I had never heard of a 30" driver before. That thing is monstrous. As old as it is though I would think the motor is crap.

Television: Mitsubishi WD65737 DLP
Processor: Emotiva UMC-200
Amps: Carver AV 806x/Behringer EP4000
Mains: DCM TimeFrame 600 Center: AT 453C
Surrounds: AT 251.1 Sub: Danley DTS-10
Blu Ray: Panasonic DMP-BD655
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post #5 of 16 Old 08-03-2012, 06:40 PM
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There's been bigger, much much bigger. Aside more recent extreme examples, Mitsibishi made an approx 5 footer, the D-160;






Now, the 30" EV referenced above was used in a nice build depicted below;






------------------------------------
Flat, Deep, Clean, Linear, and Loud
------------------------------------
Active 16.8kw, 7.3 system
(3)Seaton Cat12C up front, (4)QSC K8 sides/rears
(2)Seaton SubM-HP, (4)18" IB
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post #6 of 16 Old 08-04-2012, 01:03 AM - Thread Starter
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Holy Crap!eek.gif

Television: Mitsubishi WD65737 DLP
Processor: Emotiva UMC-200
Amps: Carver AV 806x/Behringer EP4000
Mains: DCM TimeFrame 600 Center: AT 453C
Surrounds: AT 251.1 Sub: Danley DTS-10
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post #7 of 16 Old 08-04-2012, 09:33 AM
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Now thats my dream HT!! smile.gif
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post #8 of 16 Old 08-04-2012, 09:56 AM
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Kind of like trying to figure out that what you are looking at is an elephant while only being able to see 1 square foot of the animal.
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post #9 of 16 Old 08-04-2012, 12:28 PM
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Quote:
Originally Posted by skally View Post

Now thats my dream HT!! smile.gif

Those 30 inchers make the 15 inch JBLs appear small.

Yeah, the 30's don't possess much Xmax, however a 30 inch driver has 4 times the area of a 15 inch drive.


IIRC, a JBL 15, (i.e. 2226) has ~7mm of Xmax, so even if the EV only had 1.75mm of Xmax, their displacement would be on par.

------------------------------------
Flat, Deep, Clean, Linear, and Loud
------------------------------------
Active 16.8kw, 7.3 system
(3)Seaton Cat12C up front, (4)QSC K8 sides/rears
(2)Seaton SubM-HP, (4)18" IB
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post #10 of 16 Old 08-04-2012, 04:41 PM
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Well, if a 30" driver is not sufficient how about 34" instead? smile.gif

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post #11 of 16 Old 08-04-2012, 06:27 PM
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Cool, how do you buy it?

Just looks like it's a research/marketing driver,...just for fun.

------------------------------------
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------------------------------------
Active 16.8kw, 7.3 system
(3)Seaton Cat12C up front, (4)QSC K8 sides/rears
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post #12 of 16 Old 08-04-2012, 06:36 PM
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I think I'd go with some 18" drivers that claim 54mm Xmax:RE Audio XXX18D2

The customer reviews at SonicElectronix are great for this one. One person claims he blew out his window in the car; another that he has six of them in a van eek.gif

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post #13 of 16 Old 08-04-2012, 08:00 PM
 
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Just wow,that's some insane subs!. biggrin.gif
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post #14 of 16 Old 08-05-2012, 01:30 PM
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Quote:
Originally Posted by cel4145 View Post

I think I'd go with some 18" drivers that claim 54mm Xmax:RE Audio XXX18D2
The customer reviews at SonicElectronix are great for this one. One person claims he blew out his window in the car; another that he has six of them in a van eek.gif

There's a handful of AVS'ers that are rockin' the RE drivers in subs. One 4x manifold user, another user employs 4 small sealed in a typical room. Those drives are highly vetted, solid performers. That cone travel comes in handy for the deepest freqs, as every halving of freq, requires a quadrupling of travel to maintain similar playback level.

------------------------------------
Flat, Deep, Clean, Linear, and Loud
------------------------------------
Active 16.8kw, 7.3 system
(3)Seaton Cat12C up front, (4)QSC K8 sides/rears
(2)Seaton SubM-HP, (4)18" IB
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post #15 of 16 Old 08-05-2012, 07:50 PM
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How about this monster: fostex-fw800hs-31.5-super-woofer
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post #16 of 16 Old 08-06-2012, 09:24 AM
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Quote:
Originally Posted by mtg90 View Post

How about this monster: fostex-fw800hs-31.5-super-woofer

Yeah, those, if I recall correctly, enjoyed a little run in time whereby they had a modicum of popularity in studio baffle wall, soffited subwoofer use. I recall more than one build with these,...circa mid 80's-mid 90's perhaps. I remember one such that had two per side in a wonderfully nice, Scandinavian studio. More than ample displacement for studio music playback.

Thanks

------------------------------------
Flat, Deep, Clean, Linear, and Loud
------------------------------------
Active 16.8kw, 7.3 system
(3)Seaton Cat12C up front, (4)QSC K8 sides/rears
(2)Seaton SubM-HP, (4)18" IB
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