Alternative to Ascendant Audio Drivers

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I built a sub (seen HERE, obviously not veneered) about six months ago I am very impressed with it. I used an Ascendant Atlas 12" driver and PartsExpress 250w plate amp.

Now I am making a dedicated theater in another room. I need another sub. I want to go even bigger/louder/lower. :D I am probably going to make a sonosub since I have several sonotubes lying around already. Unfortunately Ascendant Audio seems to be in the unknown right now. There site hasn't been updated and my emails bounce. Does anyone know what's up with them?

Anyway, what is a good 15" alternative to an ASA driver? I would want something equivalent to an Avalanche 15". I will probably drive it with a bridged Crown XLS 202 amp for a total of 500 watts.
 
Yep but I wouldnt expect phenomenal increases in SPL.

3dB more amplifier costs alot,but is only just audible,while a larger 15" woofer has basically the same sensitivity as its 12" brother.

Power compression on home woofers is an unknown issue also.

The bully sub should have significantly less distortion with its flux shorting ring. - >
http://www.mfk-projects.com

The Tcsounds looks good for its price.
 
Resonant Engineering has a strong fan-base, never heard one myself but they look pretty nice, though they might not be any cheaper than Adire's offerings. The XXX I know was more expensive than the Avalanche.

http://reaudio.com/

Elemental designs is another possibility, again I have no experience with their subs, but I own one of their car amplifiers for a pair of Atlas's and it's extremely well built. Supposedly the subs are designed more for car audio, but meh.

http://www.edesignaudio.com/us.php

Other possibilities:

Incriminator Audio
http://www.incriminatoraudio.com/

and of course offerings from Peerless and Dayton, always good stuff. If I were in your position, I'd probably wait out for Adire's new stuff, and maybe even Ascendants new stuff.
 
Unfortunatley in my opinion the only sub that comes close to the AVA 15 is the new adire 15" maelstrom but it costs $450. The specs are pretty close but the ava used xbl^2. If you have some serious cash to drop accept no substitutes go right for the tumult for $700.
 
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