Need a "short list" of best Subwoofers for M.L.'s


Hello out there!

I'm looking for the best possible brand, size, etc. of subwoofer that would be the best "blend" to augment my Martin Logan Odyssey's. (Let's keep it to the "powered" category for simplicity's sake :)

Thanks to any & all!
denf
Martin Logan just came out with this sub that uses 3 10 inch woofers and a 400 watt amp, that the Absolute sound raved about. The name of the sub is the Descent. It lists for 2700 dollars.
Listened to both the descent and the depth with Ascent and Odyssey. Both subs are musical, not boomy. Listened more to the descent, which I prefer for my room because of size (<3200 cubic feet)
The Martin-Logan Descent is the BEST match for Martin-Logan. It only makes sense!!! Works great with my SL3'. Steve