Description
Dual Color Illumination, Subwoofer Level Control
Variable Subwoofer Filter, Master Volume Control
Switchable Phase Selector, Fader Control
Input Selector, 2 Source Input, Pre-amp Output: 7 V
Gold-Plated Front, Rear, and Subwoofer Outputs
EQ Band Center Frequencies: 40 Hz, 150 Hz, 1 kHz, 20 kHz
Boost / Cut at Center Frequencies: + / – 18 dB
Sound Storm Laboratories S4EQ 4 Band Pre-Amp Car Audio Stereo Equalizer – Gold-Plated Front/Rear and Subwoofer Outputs

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