OMNITRONIC PA 6-Zone Stereo Volume Controller for managing audio levels across six zones. The unit provides a 4-ohm stereo amplifier input and a 4-ohm stereo speaker output for each zone, with attenuation selectable in 10 steps. It features an aluminum front panel, screw plug connections, and a 19-inch rack-mountable housing occupying 2 U. Rated power is 6 × 45 W RMS, with a frequency range of 50–18,000 Hz.