Excellent power amp from BV Audio, a short lived company put together by some MIT techs. Google BV Audio for an excellent review from home theater hifi. This is a completely balanced amp and has only XLR inputs. I will include a high quality RCA to XLR cable so that the amp can be used with any preamp. Very clean detailed sound. 110w into 8 ohm, 170w into 4 ohm. Has balanced outputs for biamping. Excellent condition except for small nick on right side of faceplate. Very powerful detailed sound. I will include a Signal Cable power cord at my asking price. Please see my listing for the matching preamp.