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The MMA-130 is a mono class D mixing amplifier with 30 W (8 Ω). The device has been developed in-house according to the specifications of a globally operating crane manufacturer and thus is perfectly matched to the application in the crane operators cabin. The MMA-130 is used for the crane operators announcements made to people within the pivoting range of the crane.
The compact dimensions of the amplifier which are matched to the dimensions of a standard slot in a motor vehicle and the voltage supply of DC 12-24 V allow for a wide range of additional applications.
The temperature range from -25 °C to +50 °C required for the area of application can easily be realised due to the selected components.
Mono class D PA mixing amplifier,
30 W/8 Ω.
  • 1 microphone input and 1 line input, adjustable
  • Line input each on the front panel and rear panel
  • Bass and treble controls
  • Mute switch
  • LED indication for mute and operation
  • Standard mounting dimensions (suitable for slots in motor vehicles)
  • Power supply: DC 12-24 V
Peak output power -
Power rating -
Power rating at 2 Ω -
Power rating at 4 Ω 15 W
Power rating at 8 Ω 30 W
Power rating at 16 Ω -
Power rating at 100 V -
Power rating with 4 Ω bridged operation -
Power rating with 8 Ω bridged operation -
Output impedance -
Channels 2
Zones -
Inputs 1.9 mV/560 Ω (mic),

220 mV/4.8 kΩ (line)

Attenuation factor -
Frequency range 20-20,000 Hz
Crossover network -
Crossover frequency -
Integrated limiter -
Equalizer bass ± 12 dB
Equalizer midrange -
Equalizer treble ± 12 dB
S/N ratio -
Crosstalk attenuation -
THD < 0.11%
Phantom power -
Mains voltage -
Mains frequency -
Power consumption, operation -
Power consumption, standby -
Standby current -
Operating voltage (possible alternative) -
Power supply (possible alternative) -
Admiss. ambient temp. -25 °C to +50 °C
Width 200 mm
Height 56 mm
Depth 125 mm
Rack spaces, RS -
Weight 724 g
Connections 1 x XLR (mic input),

2 x RCA L/R (line input),

1 x 2-pole plug-in screw terminal (speakers)

Packing dimensions (W x H x L) 0.2 x 0.055 x 0.125 m
Gross weight 0.936 kg
Net weight 0.724 kg