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MAIN POWER CONNECTOR

Power connector is designed for main powers connecting to amplifier. This connector is combined with fuse

holder.

AC FUSE HOLDER

Please use 2 A, 250 V fuse for amplifier MMA 120X and 4A, 250V fuse for amplifier MMA 240X.

AMPLIFIERS OUTPUT

Use this connector to connect amplifier to the loudspeakers. There are two types of output: Hi-z and Lo-Z.

Hi-z output is designed for loudspeakers with built-in impedance matching transformer. Hi-z output can

be switched by zone selection switch in order to broadcast announcement or background music to the

desired zone. Lo-Z output suitable for speaker without 100V matching transformer.

IMPEDANCE SELECTOR

This switch allows to select "Hi-z or Lo-Z amplifier's output.

CONNECTOR FOR PAGE STATION 5 MICROPHONE

This connector is suitable for page station 5 microphone. Don't connect any other devices to this

connector, othervice amplifier and connected device will be damaged.

ANTENNA CONNECTORS

If amplifier is supplied without the

part of

music source module, so connector is included to module package.

AMP IN AND PRE-AMP OUT CONNECTORS

PREAMPLIFIER OUTPUT - line level output directly from unit preamplifier. AMPLIFIER INPUT - line level input

directly to device power amplifier. Preamplifier output and amplifier input are designed to insert signal

processor such as equalizer or limiter. Please note that AMP IN and PRE-AMP are designed before the master

potentiometer, so master doesn't affect audio level in these connectors. Please check block diagram to find

location where connectors are inserted to amplifiers layout.

LINK IN AND LINK OUT CONNECTORS

LINK OUTPUT - line level output linked from unit preamplifier. LINK INPUT - line level input linked to device

power amplifier. Please note that LINK IN and LINK OUT are designed before the equalizer and master

potentiometer, so equalizer and master don't affect audio in these connectors. LINK IN and LINK OUT

connectors are suitable to link audio signal from MMA 120X or MMA 240X to another amplifier or to audio

recorded etc. Please check block diagram to find location where connectors are inserted to amplifiers layout.

CHIME/SIREN LEVEL CONTROL

Chime and siren audio level can be adjusted by using Chime/Siren level control.

REMOTE MICROPHONE GAIN CONTROL

This knob allows adjust remote microphone input gain.

REMOTE MICROPHONE CONNECTOR

This is highest priority balanced input for dynamic remote microphone.

CHIME CONNECTOR

This connector designed for external chime activation button. In order to activate chime, connector's contacts

should by connected with each other for a short time.

MICROPHONE INPUT IN PARALLEL TO STEREO RCA

This is balanced input with 6,3mm jack connector in parallel with stereo RCA. Gain of this input can be

adjusted by using gain control knob located above connectors.

music source module, this connector is not installed.

Antenna connector is