Check the listing for details. Russound ALT-126R in wall volume control. Condition: Used. Listed at 22.00 USD. Product highlightsconnect up to 8 pairs of speakers to a single 8-ohm-rated stereo amplifier (requires 1 volume control per speaker pair) power handling: 42 watts RMS per channel (126 watts peak) adjustable impedance magnification (1x, 2x, 4x, and 8x) with easy-to-use, front-mounted selection switch 4-ohm amp: up to 16 pairs of 8-ohm speakers or 8 pairs of 4-ohm speakers 8-ohm amp: up to 8 pairs of 8-ohm speakers or 4 pairs of 4-ohm speakers pop-free 12-step control, 48dB maximum attenuation meets applicable UL® and CSA® standards for a safe, worry-free installation removable high-grade screw-down terminal connectors accommodate up to 12-gauge wire installs in your wall with a standard single-gang electrical box (not included) includes two colors of Decora® style wall plates and knobs: white and light almond 2-3/4"W x 4-1/2"H x 3-7/16"D warranty: lifetime What's in the boxALTx-2 in-wall volume control White wall plate Almond wall plate White volume knob Almond volume knob 2 Speaker screw terminals 2 Volume control installation screws (M3 x 20mm) 2 White painted wall plate screws (M3 x 10mm) 2 Almond painted wall plate screws (M3 x 10mm) Installation Manual About this itemWritten by Crutchfield's Dave BarConvenient volume control Russound puts control of your in-wall and in-ceiling speakers at your fingertips. The ALT-126R in-wall volume control offers easy operation as well as built-in impedance-matching circuitry that makes it easier to outfit several rooms with speakers. The handy front-mounted selector switch saves you time whenever a system configuration needs to be changed, like when you add more speakers. Safely connect multiple pairs of speakers You can use up to eight of these impedance-matching stereo volume controls to safely drive up to eight pairs of speakers with a typical receiver or amplifier. You won't even need any additional speaker selector or protection device. For connecting up to eight volume controls neatly and conveniently, use Russound's EZB-8 modular expansion unit.