I have a 3805, which I use as a pre-pro but also to power the surround back EX ES etc, with my main power supplied by a 5 channel Rotel RB-985. It's a THX certified amp, that's probably been discontinued for awhile. However I love this amp for music & movies, and I'm sure whatever replacements have come down the pike are just as awesome. It was $999 retail give or take.