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
REL's are the best match. Storm III or Stadium depending on room size and configuration.
I'm using two Velodyne HGS-15 subs with my M.L. Odyssey's and I could not be more please with the results.
I have tried a lot & sold them all until I got an REL Stadium II. After adjusment it blends perfectly with my Quest Z's.