I have both the 1572 and 1572 (250 watts per channel)on a 7.1 surround system with B&W Xt4, XTC, CCm683 and XT2 and Velodyne DD10. The Rotel amps sound amazing they really transformed the speakers and brought them alive. My receiver is a Denon 4308ci which pushes 140 watts per channel, adding...