Zapco ASP-Q2 7-Band Parametric Equalizer EQ/Crossover Subwoofer AUX Remote 9.5v
Zapco ASP-Q2. The ASP-Q2 was not designed to be an “accessory” toy for the dash. The separate bass level lets you balance the bass to the highes. Subwoofer Frequency: 30 - 300Hz. RCA: 2-Ch. Inputs (Main, Aux) + 3-Ch.