Soundstream MPQ-90 1/2-DIN Car Audio 9-Band Graphic Equalizer Subwoofer Control.

SOUNDSTREAM MPQ-90. · Front, Rear, & Subwoofer RCA Outputs. · Variable 60Hz-90Hz Subwoofer Low Pass Crossover. · Nine Frequency Bands with 18db Boost/Cut · Frequency Response: 10Hz-15kHz.

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