In Wall Impedance Matching Volume Control
By Speakercraft (VSI45)
These stereo in-wall volume controls are designed for use in distributed audio systems, primarily with in-wall and ceiling speakers. Impedance matching design enables up to 8 pairs of 8ohm speakers to be connected to a stereo amplifier, and appear as a 4ohm load. Includes Decora Style Faceplates, Inserts & Knobs in White, Bone, and Almond.