GREAT amp!!! My performance data sheet tested the amp at 141 watts per channel x 4 @ 4 Ohms, with a total RMS power of 873 watts. It is very strong and clean. No strange noises, buzz, or hum at any volume. Powers on soft with no thumps. Just raw, clean class A/B power. I have it running a set of Infinity Perfect 6.1 components in the front and Polks in the rear and they make SUPER clean sound at all volumes. For bass, I run a T1000.1BD with a couple of 10's in a sealed box. A little on the pricey side, but rock solid sound throughout the entire range - highs, mids, and bass. Rockford Fosgate Power series is the best.