OMNITRONIC MP-120 is a 120 W RMS PA mixing amplifier for ELA sound systems and fixed or mobile installations. It provides three microphone inputs and three stereo line inputs with individual level controls, a line output, master control, chime, priority announcement circuit, bass and treble adjustment, and a 7-digit LED level meter. The amplifier supports 70 V and 100 V constant-voltage loudspeakers and 4–16 ohm speakers. It is housed in a 19-inch, 2 U rack-mount enclosure with fan cooling and protection against overvoltage and short circuits.