S4EQ 4 Band Pre-Amp Car Audio Stereo Equalizer - Gold-Plated Front/Rear and S...

Boost / Cut at Center Frequencies: + / - 18 dB. Input Selector, 2 Source Input, Pre-amp Output: 7 V. EQ Band Center Frequencies: 40 Hz, 150 Hz, 1 kHz, 20 kHz. Gold-Plated Front, Rear, and Subwoofer Outputs.

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