S4EQ 4 Band Pre Amp Car Equalizer with Gold Plated Front Rear and Subwoofer O...
Sound storm S4EQ 4 band pre-amp car equalizer with gold-plated front/rear and subwoofer outputs. Gold-Plated Front, Rear, and Subwoofer Outputs, Pre-amp Output: 7 V. Boost / Cut at Center Frequencies: + / - 18 Db.