Integrated Mixer Amplifier FBT MMA-3240

FBT MMA-3240

Integrated mixer amplifier, RMS 240. 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. Preamplifier output for recorders, sound processors and/or cascade connection of other amplifiers. Three zones selectable or all-call 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”, 1 W/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 115 V/230 V voltage selection; External DC 24 V 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.

Specifications

• Nominal output power: @230 Vca: 240 W
• Nominal output power: @24 Vcc: 156 W
• Constant voltage outputs: 100, 70, 50 V
• Low impedance outputs: 8 ohm
• Distortion at the nominal power: < 0,5 %

Tone controls

• Low tones: -11 dB (@100 Hz)
• High tones: -11 dB (@100 Hz)

Microphone inputs

• Input sensitivity/impedance: 1,1 mV/47 kohm
• Signal/noise ratio: 62 dB
• Frequency response: 45-19000 Hz (0/-3 dB)
• Phantom power supply: 16,5 V

Line Input

• Input sensitivity/impedance: 120 mV/1000 kohm
• Signal/noise ratio: 82 dB
• Frequency response: 40-21000 Hz (0/-3 dB)

Telephone input

• Input sensitivity/impedance: 120 mV/5,7 kohm
• Signal/noise ratio: 83 dB
• Frequency response: 200-10000 Hz (0/-3 dB)

Signal Outputs

• MOH Line: 1,4 V/600 kohm
• MOH monitor power: 1 W/8 ohm
• PRE OUT outputs: 1 V/600 ohm

Dimensions

• WxHxD: 431x88x385 mm