AMC MMA 120X User Manual Download Page 7

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, 4A, 250V fuse for amplifier MMA 240X, 6.3A, 250V fuse

for amplifier MMA 360X and 8A, 250V fuse for amplifier MMA 480X.

100V AND 4Ω AMPLIFIERS OUTPUT

Use this connector to connect amplifier to the loudspeakers. There are two types of output: 100V and 4Ω.

100V output  is  designed  for  loudspeakers  with  built-in  impedance  matching transformer. 4Ω output

suitable  for  speaker  without  100V  matching  transformer. Please  note:  MMA480X  amplifier  have  100V

output only!

CONNECTOR FOR PAGE STATION 5X MICROPHONE

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

connector, other vice amplifier and connected device will be damaged.

ANTENNA CONNECTORS

If amplifier is supplied without the

music source module, this connector is not installed.

Antenna connector is

part of m

usic 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 to another amplifier or to audio recorded etc. Please

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

MUSIC ON HOLD

Music on hold audio output produce audio signal from installed music source module or input sixth. The

source and audio level can by selected by using switch and potentiometer located on rear panel.

CHIME/SIREN LEVEL CONTROL

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

TELE PAGING

This is balanced input for dynamic remote microphone. Balanced Phoenix connector.

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.

Summary of Contents for MMA 120X

Page 1: ......

Page 2: ...g amplifiers that produce heat 6 The product should be connected to a power supply that is described in the operating instructions or are marked on the product Replace the fuse only with one of the sp...

Page 3: ...Introductions 4 Features 4 Operation Front panel 5 Rear panel 5 Function description 6 Output terminal 9 Controls and connectors Connectors 10 Cable wiring examples 10 Block diagram 13 Specifications...

Page 4: ...nce speaker line variety of microphone and line inputs makes these units universal for any kind of installation Features Six microphone inputs with gain control 3 5mm Jack AUX input Ready to plug in m...

Page 5: ...ain power connector 2 AC fuse holder 3 Antenna connectors 4 100V amplifiers output 5 4 amplifiers output 6 AMP IN and PRE AMP OUT connectors 7 LINK IN and LINK OUT connectors 8 Music on hold volume co...

Page 6: ...el control located in the rear panel MASTER VOLUME CONTROL This knob is designed to adjust main volume of the amplifier AUX INPUT This stereo 3 5mm jack input is in parallel to sixth input in the rear...

Page 7: ...ut 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 au...

Page 8: ...y counterclockwise position input gain is 14dBu At fully clockwise position input gain is 30dBu PHANTOM POWER SWITCH Set phantom power switch to ON position to activate phantom power to all XLR inputs...

Page 9: ...Please note Amplifiers output can run only one configuration at the same time Operating amplifiers using 4 and 70 or 100 volt concurrently may cause damage to the amplifier or connected speakers Remo...

Page 10: ...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: ...nbalanced 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 balance...

Page 12: ...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 balan...

Page 13: ...Block diagram...

Page 14: ...sensitivity 17 dBu Amp in sensitivity 0 dBu S N ratio 75 dB Frequency response 80 Hz 15 kHz Equalizer 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz 12dB Cooling Convection Indicators Power signal protection O...

Page 15: ...________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ __...

Page 16: ...AMC is a registered trademark of AMC Baltic www amcpro eu...

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