Power Handling: 100 Watts Per Channel RMS; 200 Watts Peak Selectable Impedance Magnification For 1, 2, 3/4, 5/6 Pairs Of Speakers Individual Room On/off Selector Switches, 12-step Controls; 54dB Maximum Attenuation Separate Left & Right Ground Paths Compatible With All Amplifiers Removable Screwless Connectors Accommodate Up To 12-gauge Wire Rugged All Metal Chassis Construction, 72 Adhesive-backed Room Identification Labels Nonskid Feet Won't Scratch Furniture & Ensure Unit Stability During Operation Dimensions 17" W X 2" H X 9-1/8" D