DOA out of the box. Unfortunately did not test the unit prior to installing and learned the hard way. Channel 2 was defective but must admit the other 3 channels sounded amazing. Too bad :( I will not replace the unit since I don't believe an amp that expense should come DOA; raises doubts about the...

With the aptly-named Rockford Fosgate Power T600-4, you get what you pay for, and then some. Packed to the heat sinks with the latest in amplifier technology, the Power T600-4 fits neatly into Rockford Fosgates flagship Power line of amplifiers.

I stand behind Rockford Fosgate amps 100%. Flawless quality and build design. These amps take a beating. The birth sheet that came with this and the Power T1000-1bdCP were both rated 25% higher than the actual spec of the amp!!! Most manufacturers barely meet the advertised one.