I have a Crest LT-1000 powering my sub in the HT room. It's good, but not great, if tight, musical bass is what you want. It does put out prodigous power, but is a bit "loose" sounding compared to some amps. Also, the fan is intolerably noisy. I had to put mine in a closet to deal w/it's noise. If you're looking for a sub amp, I think you'd be best off w/a Crown K1 or K2, or one of the new QSC amps with the (very new) ultra quiet fans.