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Product Overview

BMA 120 – 100V Mixer Amplifier

The inDESIGN BMA 120 is a high quality mixer amplifier for commercial and industrial audio applications.

The BMA series feature 4 Mic/line inputs. Microphone input 1 features a mute so that a Microphone on this channel will mute all other inputs, useful for paging announcements. The BMA Series provide either 4 Ohm or constant voltage 100V speaker outputs. A pre-amp out/power amp in link allows for the mixer audio signal to be sent to an external equaliser or a booster amplifier. Shipped with a link fitted.

The mixer amplifiers are part of inDESIGN’s Install Series, which also includes mixers and power amplifiers. These units provide excellent features and value.




  • Output power: 120W
  • AC power supply: 230VAC -240VAC
  • Output low impedance: 4 ohm-8 ohm
  • Hi impedance output: 70V / 40 ohm
                                      100V / 80 ohm
  • Input sensitivity: Microphone balanced XLR, 1mV
                                Line RCA 500mV
  • Frequency response: 50Hz-18Khz, + / - 2dB. At -3dB rated power
  • Noise floor: 9mv at 100V output
  • THD (at -3dB rate power): 0.40%
  • Tone control: Bass 100Hz + - 10dB, Treble 10kHz + - 10dB
  • Control: Input level, tone control, master level, VOX
  • VOX: CH 1 has priority over CH2, 3, 4. (AFL)
  • Phantom power: 48V at CH 1 MIC XLR
  • Cooling: Convection Cooling
  • Protection: Thermal protected at 95 degrees, muted input, short circuit, overload
  • Level meter: LED meter, range -24dB / 0dB
  • Size (mm): 485 x 88 x 275
  • Weight KG (Net): 8.7

Product Downloads

  • BMA 120 User Manual PDF 1.8 MB


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*Prices are in AUD, include GST and are subject to change. Please call National Audio for pricing and availability on the BMA 120.