Specifications

54
AMPLIFICATION EQUIPMENT
54
MMA 3120 (120W RMS) MMA 3240 (240W RMS)MMA 3060 (60W RMS)
POWER UNIT
Integrated mixer amplifier,
3 wattages available
• 2 balanced MIC inputs and
2 MIC/LINE inputs, both for
dynamic and electret/condenser
(Phantom power) microphones,
with separate control levels on the
front panel
• 2 Auxiliary inputs with level control
and switch on the front panel
• Preamplier output for recorders,
sound processors and/or cascade
connection of other ampliers
• Three zones selectable or all-call
through front switches
MMA 3060 MMA 3120 MMA 3240
Code 29405 29406 29407
Nominal output power @230Vca 60W 120W 240W
Nominal output power @24Vcc 53W 97W 156W
Constant voltage outputs 100, 70, 50V 100, 70, 50V 100, 70, 50V
Low impedance outputs 8Ω 8Ω 8Ω
Distortion at the nominal power < 0.5% < 0.5% < 0.5%
TONE CONTROLS
Low tones -11dB (@100Hz) -11dB (@100Hz) -11dB (@100Hz)
High tones -11dB (@100Hz) -11dB (@100Hz) -11dB (@100Hz)
MICROPHONE INPUTS
Input sensitivity/impedance 1,1mV/47kΩ 1,1mV/47kΩ 1,1mV/47kΩ
Signal/noise ratio 62dB 62dB 62dB
Frequency response 45÷19.000Hz (0/-3dB) 45÷19.000Hz (0/-3dB) 45÷19.000Hz (0/-3dB)
Phantom power supply 16.5V 16.5V 16.5V
LINE INPUT
Input sensitivity/impedance 120mV/1000kΩ 120mV/1000kΩ 120mV/1000kΩ
Signal/noise ratio 82dB 82dB 82dB
Frequency response 40÷21.000Hz (0/-3dB) 40÷21.000Hz (0/-3dB) 40÷21.000Hz (0/-3dB)
TELEPHONE INPUT
Input sensitivity/impedance 120mV/5.7kΩ 120mV/5.7kΩ 120mV/5.7kΩ
Signal/noise ratio 83dB 83dB 83dB
Frequency response 200÷10.000Hz (0/-3dB) 200÷10.000Hz (0/-3dB) 200÷10.000Hz (0/-3dB)
SIGNAL OUTPUTS
MOH Line 1,4V/600kΩ 1,4V/600kΩ 1,4V/600kΩ
MOH monitor power 1W/8Ω 1W/8Ω 1W/8Ω
PRE OUT outputs 1V/600Ω 1V/600Ω 1V/600Ω
Dimensions (WxHxD) 431x88x385mm 431x88x385mm 431x88x385mm
• High/Low frequencies and main
volume control
• LED with dB output measurement
• Signal of the selected music
source available as MOH, “Music
on Hold”, 1W/8 ohm output for
monitor loudspeaker or for other
instruments, such as telephone
switchboards
• 2-tone DING-DONG chime with
on/off button and volume control
• Electronically balanced input
and output lines, male/female
connectors allowing the cascade
connection of several units
• Input dedicated to the connection
of a private telephone
switchboard to transmit
high-priority messages/
emergency signals
• Priority function with external
contact; Output for the selected zone
• Switch for 115V/230V voltage selection;
External DC 24V power supply
• Cooling fan with automatic
adjustment according to the
temperature of the heat sink
• Protection of the output stage and
transformer for constant voltage
lines
88
431