Niles WVC100E Weatherproof Stereo Volume Control with Selectable Impedance Magnification Tabletop Stereo Volume Control with Selectable Impedance Magnification Power Handling: 100 Watts Per Channel RMS; 200 Watts Peak Selectable Impedance Magnifying: 1X, 2X, 4X, 8X Removable Screwless Connectors Accommodate Up To 14-gauge Wire 10 year limited