Compact full range, 5-channel amp is the only amp you'll need to run your entire systemClass-a/b on the front/rear channels, Class-bd for the subwoofer channel (RMS stereo + sub: 75 Watts x 4 + 150 Watts x 1 @ 4-Ohm or 125 Watts x 4 + 300 Watts x 1 @ 2-Ohm or N/A + 500 Watts @ 1-Ohm)Tri-stage protection covers thermal, over-current and short circuitsSpecifically designed for marine and motorsports applicationsAuto Turn-On circuit, On-board Punch EQ with +18dB boost @ 45Hz and 12dB/octave Butterworth crossoverFull 2-year warranty