500 watts mono bridged x 2 @ 4 ohms; 125 watts x 4 @ 4 ohms; 250 watts x 4 @ 2 ohms; Switchable 12/6/0 dB bass boost; Road Worthy(TM) TCID (Twin Coil Isolation Design) and Pro-Fi(TM) High Speed MOSFETS bring extreme power with high sound quality and minimum distortion levels; High-energy PWM (Pulse Width Modulated) power supply provides MAXXimum power with minimal electrical impact; Heat sink with very musical bass and blue wash on underside; Dramatically reduces noise by allowing amp to be run from the output RCA connections, which minimizes need for additional cables running the length of the vehicle; Includes owner’s manual;