Good price Under 60 lbs 500+ watts with lots of headroom 2 channels capable of different loads (like 4 ohm and 8 ohm) Also want to be able to use it as a pa amp, so i dont want an amp just for bass Clean doesnt color sound. Thats what the preamp is for What should i be looking at? Crown, Crest Audio, QSC? I am not nearly as knowledgeable on amp brands compared to basses, so what other brands and models should i be looking at? I will be pairing it with a variety of preamps such as the swr grand prix, a yamaha p2b, an alembic f2b knockoff, hopefully a peavey spectrum filter, and maybe eventually some other tube pres.