Pulse Width Modulated Power Supply 2 Selectable Balanced Inputs Variable Stereo Input Sensitivity 4 bands ± 18dB Parametric Equalizer Independent Volume & Fader Control Independent Subwoofer Output and Level Control 30 - 250Hz Sub Control Subwoofer Level & Volume Controls Variable Subwoofer Low-Pass Crossover 7V MAX Front Rear & Subwoofer Outputs CD/Auxiliary Input Selector Low Noise BI-FET Op-Amp for Minimum Distortion 20dB Headroom 30V Bipolar Power Supply Selectable Green/Amber Illumination Quick Disconnect Wire Harness Input Selector Switch Under Dash Mounting Hardware Included S/N Ratio 110dB @5V THD:0.05%