Power Handling: 100 W Per Channel RMS; 200 W Peak Selectable Impedance Magnifying: 1X, 2X, 4X, 8X, 12-step Control, 54dB Maximum Attenuation, Pop-free Switching Between All Steps Removable Screwless Connectors Accommodate Up To 14-gauge Wire Removable Knob And Decora Snap-in Color Inserts For Quick And Easy Color Changes Recommended For Use With Niles VCS HUB8 Speaker Distribution Hub Requires 1-gang Electrical Box At Least 3" Deep Dimensions 1-5/8" W X 2-5/8" H X 2-9/16" D