what is the best sub for $1500.00 or less


has anyone had a hgs 12x subwoofer by velodyne? is there a better sub for the money? are two subs better than one for two channel audio in your opinion?
hemidakota
I just sold my REL Statium III. This is the best Sub I have had - integrated very well with stereo setup.
I would recommend one of the Martin Logan subs. Very quick and pretty flexible. Get a Depth, and you are set
I love RELs, but times are a'changin. Velodyne DD-10's digital room correction is worth the entire budget and you can find one for close to that. The Axiom EP-500 is a steal at $1,150, same for the ACI Titan at $1,050 or two (!) ACI Forces for $1,500.