BOSS Audio AVA1210 Car Equalizer - 7 Band Pre-Amp Half-DIN With Subwoofer Output And Subwoofer Level Control Front Adjustable EQ Band Frequencies: 125 Hz, 500 Hz, 3.5 kHz, 12 kHz Rear Adjustable EQ Bands Frequencies: 50 Hz, 600 Hz, 6.3 kHz Switchable Subwoofer Filter 32 Hz  128 Hz, Frequency Response 10 Hz  15 kHz Inputs: Dual 2 Channel Source. Outputs: Front, Rear & Sub. Fader Control Gain + / - 18 dB, Maximum Input Voltage 15 Volts, Maximum Output Voltage 8 Volts Signal to Noise Ratio &gt; 110 dB, Channel Separation 20 dB, Total Harmonic Distortion 0.050 Dimensions: Depth 4.6 x Width 7 x Height 1 1 Year Warranty 7 Bands RCA Input; Subwoofer output Subwoofer level control; Preamp/amplified, Preamp Night illumination Subwoofer Level Control