Sonance - SS4VC - 4-Pair Stereo Speaker Selector with Volume Controls (Each) - Black

Take control of your sound system with this Sonance speaker selector. It installs in racks or cabinets and connects up to four speaker pairs with a frequency response of 20Hz - 20kHz. This Sonance speaker selector has 12-position rotary knobs for easy volume adjustments, and it's compatible with RV and boat stereo systems.