External RCA Bass Volume Level Controller for Amplifier Subwoofer

External RCA Bass Volume Level Controller for Amplifier Subwoofer. This audio bass level controller dial is an external way to adjust the frequency and gain output level from an amplifier, subwoofer, stereo system, equalizer or crossover volume form the dashboard or remote location. This amp level controller knob adds sub-woofer level controls or balances a multiple amplifier installation when you need quick adjustments without fussing with your graphic equalizer or stereo volume controls! The gain and frequency control actually adjusts the amount of input signal coming into the amplifier. If you turn them up too high, you hear some distortion. Connection Application Diagram: Specifications: * Easy way to add sub-woofer level controls or balances a multiple amplifier installation. * Fine tunes the volume of any RCA line level audio signal that you wish to control. * Compact housing allows the unit to be mounted virtually anywhere so control is right at user's fingertips. * Great for a sub amp volume control. * Dash mount amplifier level control for volume adjustment. * Simple in and out connections, no additional wiring needed. * This adds a dash mounted or desktop style subwoofer volume controller to your existing system. Package Content Frequency Range Support: 150Hz - 40Hz Gain Level Control: 0dB - 12dB Connectors: RCA input x 2 and RCA output x 2 Dimension: 7.8 x 6.7 x 3.5cm