330 watt 2 channel amplifier, 2 x 55 watts RMS or 2 x 110 watts Peak power, 1 x 165 watts RMS or 1 x 330 watts Peak power, includes on-board udjustable low pass crossover and fixed high pass crossover, up to +12db of bass boost at 45 Hz, accepts RCA line level and high level (speaker) inputs, dimensions 7.25-Inch x 2.1-Inch x 7.2"