The OMNITRONIC MPZ-650.6P is a 650 W RMS PA mixing amplifier for 70 V and 100 V constant-voltage systems and 4–16 ohm loudspeakers. It provides six independently switchable zone outputs, three microphone inputs, three stereo line inputs, an MP3 player with USB and SD card support, and an IR remote control. The 19-inch, 2 U rack-mountable unit includes bass and treble controls, priority talkover, chime, protection circuits, and temperature-controlled fan cooling.