Niles SVC100K Indoor High-Power Sliding Stereo Volume Control, 100 Watts Universal Impedance Magnifying circuit enables safe connection of up to eight pairs of loudspeakers to a single amplifier or receiver using the VCSHU B8 Make-before-break switch design delivers 12-step, pop-free control for a wide range of listening volumes Premium-quality parts and construction ensure high-fidelity sound, 100W continuous power handling with flat frequency response (+/- 1.2dB) Includes designer-approved screwless wall plates in four colors to blend seamlessly into any decor and accommodates standard one-gang electrical boxes Convenient sliding volume control provides a modern and elegant look