Amplifier 100V/8Ω Adastra Α22 - 1

Adastra A22 Digital Stereo Amplifier PA USB / SD / FM & Bluetooth 2 x 55W

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Digital stereo amplifier USB / SD / FM & Bluetooth 2 x 55W

PA digital stereo amplifier with built-in media player.

With Class-D amplifier it can offer up to 2 x 55W at maximum.

Music background output - Microphone input for announcements or alerts.

Multimedia playback can be selected between USB / microSD mp3 player, FM tuner, Bluetooth tuner, 2 stereo line inputs (RCA rear panel) and another line input on the front panel (3.5 mm).

Playback can be controlled from the front panel or from the supplied I.R. remote control.

Four support arms are provided that allow the A22 to be mounted under a bench or on a wall for discreet installation.

Two A22 units can be placed next to each other in a 1U rack, which can serve smaller peripherals in a larger PA facility.

Combine with 2 or 4 speaker units for a truly sound-saving system with integrated and easy-to-use features.


  • Power supply: 230Vac, 50Hz (IEC)
  • Output resistance: 4 - 8 Ohms
  • Power: 8 Ohms2 x 25W rms / 2 x 40W max. (@ 1kHz 10% THD)
  • Power: 4 Ohms2 x 35W rms / 2 x 55W max. (@ 1kHz 10% THD)
  • Line Inputs: Aux 1 (3.5mm), Aux 2 (L + R RCA), Aux 3 (L + R RCA)
  • Microphone input: 6.3mm jack
  • Control: Mic Volume, Treble, Bass, Music Volume
  • Audio sources: USB / microSD player, FM tuner, Bluetooth
  • Dimensions (mm): 215 x 180 x 43mm
  • Weight: 820 gr.

Product Details


Data sheet

Ohm / 100v
8 Ohm
Installation amplifier

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