The OMNITRONIC MPZ-180.6P is a 180 W RMS ELA mixer amplifier for 70 V and 100 V constant-voltage loudspeaker systems and 4–16 ohm speakers. It provides six independently switchable PA zones, three microphone inputs, three stereo line inputs, an MP3 player with USB and SD card support, IR remote control, bass and treble controls, and a priority circuit with chime. The 19-inch, 2 U rack-mountable unit has fan cooling, overvoltage protection, and short-circuit protection.