I have mine hooked up to a Definitive Technologies Reference Sub and the two powered subs in my Definitive Tech Mythos STS Towers. Huge improvement and I have not started to tweak yet!

Samsung 67" LED DLP
Definitive Tech Mythos 7.1 sys.
Denon 5800 AVR
Denon DVP-602CI Video Processor/Scaler
Denon DVD-3800BDCI Blu-Ray
Sony DVP-S9000ES DVD
Sony DVP-S7700 Ref CD
Velodyne SMS-1
Luxman & Dual Turntables
2 Monster Power 5100 MKII
etc, etc