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inDESIGN BA4120 4 x 120Watt Basic 4 Ohm or 100V Line Power Amplifier



The inDESIGN BA Series Power Amplifiers are high quality amplifiers for commercial and installed audio applications.

The BA Series Power Amplifiers provide either 4 Ohm or 100V speaker outputs.

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

Warranty: 5 Years

  • 120 Watt per Channel
  • 100V
  • 2RU
  • Output power: 4 x 120W 
  • AC power supply: 230VAC - 240VAC 
  • Output low impedance: 4 ohm - 8 ohm 
  • Hi impedance output: 70V / 40 ohm, 100V / 80 ohm
  • Input sensitivity: Balance input 1V 
  • Frequency response: 50Hz-18Khz, + / - 2dB. At -3dB rated power 
  • Noise floor (at 100V): 4mV 
  • THD (100V at -3dB rate power): 0.10 % 
  • Cooling: Fan cooling, Thermal control 
  • Size – mm: 485 x 88 x 370 
  • Weight – kg (Net): 17.3

To download the BA4120 User Manual please click here.

As of 21/4/20 orders $100 and over ship FREE to most areas. Orders $49 and under Postage is $8 and Express Shipping $15. Order $50 to $99 are $15 for express shipping*. This covers one delivery attempt so please provide an address where someone is available to sign for courier delivery between 9am and 5pm weekdays. You can instruct us to ask the courier to leave your parcel unattended in a safe place, although please be aware that if anything happens to the parcel, neither us nor the courier company can be held responsible. Work addresses are a great delivery option. If using a work address please include the business' name.

* for some larger items does not apply to Australian remote island locations, some mainland remote locations (outside Darwin NT and Perth WA metro areas) or outside Australia. If unsure if you are entitled to capped shipping it is best to contact us prior to placing order.

Type: Power Amps