I've reviewed a fair number of receivers, and owned a fair number of them myself as well. The unit that I was the most sad to part with was the Pioneer SC-27 a couple years ago. With its Class D amps, it was fast and powerful, but not harsh. The new SC-57 is a 9.1 receiver, with Class D amplification, but Pioneer has built the amplifier modules themselves rather than using ICEPower modules. Was the sound different? Read on . . .