SKU: AAVCD3C Instructions: Product Description Acoustic Audio by Goldwood AAVCD3C Passive Dial Speaker Volume ControlLow Voltage passive design installs easy for Do-It-Yourselfer or ProfessionalVersatile use with 4, 8, and 16ohm speakers and handles 150 watts per channelIndependent grounds work with any amp and the connections take wire up to 14 gaugeChange the shorting bars placement to safely connect to 8 pairs of 8ohm speakersShorting bars ensure the proper impedance matches the level being produced from your ampDial has 12 steps of attenuation with true first "off" position3 Color options with decorative white, almond and ivory faceplates and knobsFits most deep single gang electrical junction boxes with a depth of 3.25"System RequirementsAny home audio receiver or amplifier with raw speaker wire outputsCL3 Rated in wall certified raw speaker wire for all connectionsApplicationsWhole House Audio SystemsBusiness or Retail InstallationsWhat's in the box1 Passive Dial Speaker Volume Control with Shorting BarsInstruction Manual with Shorting Bar Reference Chart Shipping Box Weight 2.00 LBS Shipping Box Height 4.00" Shipping Box Width 7.00" Shipping Box Depth 4.00"