Audiotek 8700DSP 1/2 Din 7 Band Car Audio Equalizer EQ Front, Rear + Sub Output, Up to 7V RMS of Output, Gold-Plated RCA connectors for Best Audio Output for Car, Boat, RV, RTV, Motorcycle

Subwoofer output uses a built-in 12dB per octave electronic crossover fixed at 30Hz-300Hz
Three stereo RCA outputs to drive front, rear, and subwoofer audio amplifiers
An auxiliary stereo RCA input for use with portable devices, such as an MP3 Player or DVD player
Separate controls for master volume, subwoofer volume (sub level), front/rear fader, and selection of main or auxiliary inputs
Extended frequency response from 20Hz to 30kHz with exceptional 100dB signal-to-noise performance