This stereo volume controller distributes audio to six zones, each providing a rated 5 W RMS output. It accepts a 4-ohm stereo amplifier input and provides a 4-ohm stereo speaker output per zone, with attenuation selectable in 10 steps. The unit has an aluminum front panel, screw plug connections, and a 2 U, 19-inch rack-mount housing measuring 48.3 cm wide, 23 cm deep, and 8.9 cm high.