Doh, did not know a thread on this was here.
Anyways, here is what I just posted in another thread.
At the $600 price the edesign audio
A5-350
15", 550 watt monster of a sub.
That A5 looks real good, so I just now called the company.
And I think the 18" (A7-450) version will be the one to buy (granted at 1300.00)
But dang, look at the graph.
(This will likely be my next sub) 110db at 17Hz.
From talking with the designer on the phone, it WILL have a large footprint. (possibly 250lbs)
25x25x36 (36 tall), however, these may not be finished specs, so don't quote me as quoting him.
See graph here -
http://www.icixsound.com/vb/showthread.php?t=44277