Mixer amplifier of 240 W RMS power, with five microphone inputs (XLR) with contact priority and selectable phantom power, two auxiliary inputs (RCA) and a 0 dB emergency input with maximum priority. Security paging relay for loudspeaker lines with attenuators. Speaker output for 100 V, 70 V and 4 Ω. XLR preamp audio output, unaffected by master volume or tone controls. Preamp input and output (RCA connector) to insert an equalizer or feedback suppressor. Individual volume control for each input. Bass, treble and general volume control. Protection circuit for peak, short-circuit, overload and high temperature. LED indicators for power, input, output, clip and protection. Occupies 2u of 19" rack.