Audio amplifier Omnitronic 80709630 Performance/stage Black

The Omnitronic 80709630 audio amplifier is a 19" mixing amplifier designed for fixed and mobile ELA (public address) systems. It supports outputs for 70 V and 100 V transformer loudspeakers as well as 4–16 Ω low-impedance speakers, and provides a line output for connection to external devices such as a mixing console. The unit accepts up to six mixable inputs — three microphone inputs and three line-level inputs — and delivers reliable operation with built-in protection and cooling features.

Advantages

The MP-180 offers flexible connectivity with dedicated microphone and line inputs, priority paging on the front-panel microphone input, and a gong function to highlight announcements. Its 19" format fits rack installations for both stationary and mobile setups. Protective measures include a fan for overheating prevention, switch-on delay, overvoltage and short-circuit protection that isolates the speaker outputs when a fault occurs, and an indicator LED for fault status.

Suitable for

Key specifications

How to use

Install the amplifier in a standard 19" rack or place it on a flat surface. Connect microphones and line-level sources to the respective inputs and route the amplifier outputs to compatible loudspeakers using appropriate wiring for 70 V/100 V transformer lines or low-impedance speakers (4–16 Ω) via clamp terminals. Use the front-panel microphone input 3 for priority announcements and adjust its priority level as needed; enable the gong if required to mark the announcement. Connect the line output to an external mixer or recorder when necessary.

Recommendations

Ensure correct speaker selection and wiring for either constant-voltage (70/100 V) or low-impedance operation to prevent damage. Allow adequate ventilation and do not obstruct the fan. If the FAULT LED illuminates, power down the unit, check speaker connections and load, and consult qualified service for overvoltage or short-circuit conditions.