Specifications

POWER AMPLIFIERS
5252
ASADAAFAFA
POWER UNIT
MPA 3120 (120W RMS) - MPA 3240 (240W RMS)
120W and 240W Power amplifiers
• Three selectable zones through
front switches
• 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
MPA 3120 MPA 3240
Code 29408 29409
Nominal output power @230Vca 120W 240W
Nominal output power @24Vcc 97W 156W
Constant voltage outputs 10, 70, 50V 10, 70, 50V
Low impedance outputs 8Ω 8Ω
Distortion at the nominal power < 0.5% < 0.5%
Low tones -11dB (@100Hz) -11dB (@100Hz)
High tones -11dB (@100Hz) -11dB (@100Hz)
LINE INPUT
Input sensitivity/impedance 250mV/47kΩ 250mV/47kΩ
Signal/noise ratio 84dB 84dB
Frequency response 40÷22.000Hz (0/-3dB) 40÷22.000Hz (0/-3dB)
Precedence reduction > 50dB > 50dB
TELEPHONE INPUT
Input sensitivity/impedance 120mV/5.7kΩ 120mV/5.7kΩ
Signal/noise ratio 84dB 84dB
Frequency response 200÷10.000Hz (0/-3dB) 200÷10.000Hz (0/-3dB)
SIGNAL OUTPUTS
MOH line 1,4V/600kΩ 1,4V/600kΩ
MOH monitor power 1W/8Ω 1W/8Ω
Dimensions
(WxHxD) 431x88x385mm 431x88x385mm
• 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
• 100V/70V/50V 8 Ohm output
• 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