FUNCTION: Dual mono passive volume control with four input selector switch tape monitor. FEATURES: Shallco military switches for volume, input selection, and tape monitor. VOLUME: 60 position switch with gold plated contacts. One per channel hand wired carbon composition resistors. Drive belt with slip clutch system is employed for volume and balance control. INPUT SELECT: Dual 7 position switch. 4 positions are used for selecting source, 3 intermediate positions are used for audio mute. TAPE MONITOR: Dual 2 position switch for selecting tape or source. CONNECTORS: Cardas rhodium plated RCA for input, output and tape monitor. WIRING: Hand wired point to point with twisted pair silver wire, and Cardas solder used throughout. CHASSIS: Zinc plated 18 gauge cold rolled steel with a heavy wrinkle black powder coated. Polished and black anodized 3/16" thick aluminum top and bottom plates. Top plate is acid etched and gold filled with nomenclature. Gold pins are used as switch position indicators. DIMENSIONS: 4 3/4" H x 10" W x 6" L WEIGHT: 4 Lbs. WARRANTY: Life time warranty to the original owner. Exclusive of physical damage.