The RUX-C810 allows you to easily Control the volume and bass level of your music and recall your favorite, customized Sound settings on demand. It is a standalone Controller for the HDP-D90 Alpine Status-Series 14 channel high resolution Digital Sound Processor and Amplifier. The rotary knob allows for easy adjustments to the volume and bass level of your music. The RUX-C810 stores your customized Sound settings and allows you to easily choose from available presets to get your ideal Sound on demand. Features: Compatible alongside HDP-D90 Alpine Status-Series 14 channel high resolution Digital Sound Processor and Amplifier (sold separately) Rotary encoder through blue illumination Black / white LCD display Adjusts volume / bass level Selects main / auxiliary input sources Calls preset for customized Sound settings RUX-C810 Controller unit including integrated 5 m connection cable Installation bracket