Car Home Amplifier Bass RCA Volume Knob Controller Subwoofer Crossover Regulator

Features: This remote amplifier level control adds sub-woofer level controls or balances a multiple amplifier installation Fine tunes the volume of any RCA line level signal you wish to control Connect the RCA from the output of this controller to the amplifier, and wire the car stereo output to the RCA input of this unit Dash mount amplifier level control for Volume Adjustment Can adjust the amplifier gain while driving Perfect for balancing the system to change music styles Simple in and out connections, no additional wiring needed Just rotate the button gently, and the different frequencies can make the song sounds different Specification: Name: Car Power Amplifier Volume Regulator Compatible: Car Universal Adds a dash mounted sub-woofer volume control.