Stereo volume controller for distributing a 4-ohm stereo amplifier input to six independent zones. Each zone provides a 4-ohm stereo speaker output rated at 5 W RMS, with attenuation adjustable in 10 steps. The unit features an aluminum front panel, screw plug connections, and a 19-inch rack-mount housing occupying 2 U. Its frequency range is 50–18,000 Hz, and dimensions are 48.3 × 23 × 8.9 cm with a weight of 3.70 kg.