The OMNITRONIC MPVZ-250.6 is a 250 W RMS PA mixing amplifier for public-address systems with six independently adjustable zones. It supports low-impedance speakers from 4 to 16 ohms and 70 V or 100 V line systems. The amplifier provides three microphone inputs, three stereo RCA line inputs, separate input level controls, master treble and bass controls, switchable chime, LED level metering, protection circuitry, and temperature-controlled fan cooling. It is designed for 19-inch rack installation and occupies 2 U.