AMC MMA 120X User Manual
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AMC MMA 120X User Manual

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  • Page 2: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS When using this electronic device, basic precautions should always be taken, including the following: 1. Read all instructions before using the product. 2. Do not use this product near water (e.g., near a bathtub, washbowl, kitchen sink, in a wet basement or near a swimming pool etc).

  • Page 3: Table Of Contents

    CONTENTS: Before you start Introductions Features Operation Front panel Rear panel Function description Output terminal RJ45 connector’s pinout Controls and connectors Connectors Cable wiring examples Block diagram Specifications General specifications...

  • Page 4: Introductions

    Introduction MMA five zone mixing amplifiers for commercial and industrial applications. Possibility to plug in music source module, 5 zone speaker lines, connector for page station 5 microphone, zone selecting, and low impedance speaker line, variety of microphone and line inputs makes these units universal for any kind of installation.

  • Page 5: Front Panel

    Front Panel Front panel microphone input Zone selection switch Slot for music source module Equalizer Input volume control Power switch Siren switch Power indicator Master volume control Signal indicator Chime switch Protect indicator All zone selection switch Rear Panel 1. Main power connector 10.

  • Page 6: Function Description

    PROTECT INDICATOR This LED lights up for a few seconds after the MMA 120X or MMA 240X is powered on and then turns off if the amplifier is not damaged. It is normal for the protection LED to fade slowly when the amplifier is...
  • Page 7 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.
  • Page 8 XLR MICROPHONE INPUT This is balanced input with XLR connector. Gain of this input can be adjusted by using gain control knob located above connector. The phantom power and priority can be activated for first two inputs separately by using phantom power and priority switch. GAIN CONTROL This control allows you to precisely adjust the input level of the signal arriving at the rear-panel input connectors.

  • Page 9: Output Terminal

    Output terminal Hi impedance output Low impedance output Please note. Amplifiers output can run only one configuration at the same time. Operating amplifiers using 4 Ω and 70 or 100 volt concurrently may cause damage to the amplifier or connected speakers.

  • Page 10: Connectors

    Connectors TS connector TRS connector XLR male connector XLR female connector RCA connector Cable wiring examples Cable to balanced input from balanced output. TRS connectors.
  • Page 11 Cable to unbalanced input from balanced output. TRS and TS connectors. Cable to balanced input from unbalanced output. TS and TRS connectors. Cable to unbalanced input from unbalanced output. TS connectors. Cable to balanced input from balanced output. XLR connectors. Cable to unbalanced input from balanced output.
  • Page 12 Cable to balanced input from balanced output. TRS and XLR connectors. RCA cable. Cable to unbalanced input from RCA output. RCA and TS connectors. Cable to balanced input from RCA output. RCA and XLR connectors. Cable to balanced input from RCA output. RCA and TRS connectors. Cable to RCA input from balanced output.

  • Page 13: Block Diagram

    Block diagram...

  • Page 14: General Specifications

    General specifications MMA 120X MMA 240X Power supply AC 220 V 50 Hz Output power 120 W 240 W Phantom power voltage Total harmonic < 0,5 % distortions Microphone input -50dBu – -6 dBu sensitivity RCA input sensitivity -30dBu – 14 dBu Remote microphone -40dBu –...
  • Page 15 NOTES: ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________...
  • Page 16 AMC is a registered trademark of AMC Baltic www.amcpro.eu...

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Mma 240x

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