2/1 Channel 425 Watt Power Amplifier - Maximum Power: 2 x 160 watts @ 4ohms. / 1 x 425 watts @ 4 ohms. - Features a Direct Auxiliary Input (3.5mm stereo jack) for portable music and navigation - Varaible low-pass filter: 50-250 Hz - Variable high-pass filter: 50-250 Hz - Variable Bass Boost: 0-12 dB - 2 ohm stable in stereo mode (4ohm in bridged mode) - Inputs: 1pr. x RCA, 1pr. x High Level Speaker, and 1 Direct Aux. Input - Dimensions (w x h x d): 10.3" x 2.1" x 10.6"