Kenwood KAC-2404S 500-Watts Stereo Bridgeable Amplifier KENWOOD KAC-2404s 4-channel car amplifier, 40 watts RMS x 4 at 4 ohms (60 watts x 4 at 2 ohms) 130 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode), switchable high-pass filter (80 Hz, 12 dB per octave) on front (A ch) channels variable low-pass filter (50-200 Hz, 18 dB per octave) on rear (B ch) channels MOSFET power supply, preamp and speaker-level inputs MOSFET power supply preamp and speaker-level inputs requires 8-gauge power and ground leads  wiring and hardware not included with amplifier, fuse rating: 30A x 1 13-13/16"W x 2-3/8"H x 8-1/2"D