The SSVC6D dual source 6-pair speaker selector with volume controls is one of our most popular models because it's the perfect fit and price for a wide range of distributed audio systems and includes features found on selectors that cost three times as much. Made of high quality metal cast construction and compact enough to fit tablet top, this versatile speaker selector connects six pairs of speakers or 12 speakers total and puts you in control of which zone to play and at what volume level. Compatible with all high-power amps up to 300W, the front-mounted master A/B switch allows you to toggle between two audio sources; for instance, switch from music streamed from your tablet or receiver with just a push of a button.