BOSS Audio BG200 Car Bass Generator &ndash; Powerful Low Frequency Enhancement System for Bass Applications Subwoofer Inputs and Outputs Subwoofer Crossover Frequency 27 Hz  63 Hz, PFM Subsonic Filter 35 Hz  80 Hz Maximum Input Voltage 15 Volts, Maximum Output Voltage 10 Volts Frequency Response 10 Hz  100 kHz, Signal to Noise Ration &gt; 100 dB, Total Harmonic Distortion 0.003% Pulse Width Modulation (PWM) High Headroom Power Supply Remote Subwoofer Control, Subsonic Filter Controls Dimensions: Depth 7.5 x Width 6.6 x Height 1.6 1 Year Warranty Maximum bass control; Dash-mount remote controls subsonic filter and bass level LED display of bass restoration activity; Parametric bass control; PFM subsonic filter Balanced inputs; Bass output control; PWM high headroom power supply Output level: 10V; Frequency response: 10Hz - 100kHz; THD: 0.003%; Signal-to-noise ratio: &gt;130dB Balanced input noise rejection: 60dB; Dimensions (W x L x H): 5-3/4 x 6-5/8 x 1-1/2