im not too sure but i think if brigded, at on eohm they would give about 500 to 600. they do 400 at 12 volts, and are unregulated power supplies. isaac knows more. hes the amp king around here or even james might know more too
HCCA 225G4 amp is underrated. At 12v, you will get 400w rms. With 14.4v, the output power will be somewhere between 500w - 600w, like Hunter said. The difference between G4 and others that claim to be 600w+ rms is, G4 will give you real clean power. Cause of that, you would be able to listen at higher volume without your ears bleeding. The power isn't G4's best feature anyways. It's the extras that come with it. Crossover for low, high, as well as bandpass. Separate phase shift for each channel, buffered rca output, high damping factor, slew rate, SN Ratio and bandwidth.