6-Channel Commercial 120 Watt Mixer/Amplifier


For commercial installations and set ups, the Asystems GA series of mixer/amplifiers provide the power and precision necessary for a flawless system. Offering a myriad of professional inputs possibilities and flexible output modes including 70V and 100V, the GA series of mixer/amplifiers is perfect for background music, broadcast paging, as well as on-hold music for offices, restaurants, factories and churches. The GA6120 provide a total of 6 inputs with a 120W amplifier output. The GA6240 provide a total of 6 inputs with two 120W amplifier outputs. Each GA mixer/amplifier also features an individual level control on each input, voice activated muting, music on hold output, and bass and treble controls.

GA6120_6 input
6 input channels, each with volume control

The GA6120 features 6 independent input channels with independent level controls. The GA6120 features inputs through RCA and Euroblock connectors.

GA6120_120 Watt
120 Watt amplifier output channel

A powered output channel is available offering 120 Watts of power. The GA6120 can be configured to any system, whether you require 100V or 70V constant voltage setups, or an 8 ohm low-impedance setup.

GA6120_Bass and treble
Bass and treble controls on master output

Boost and cut your master signal’s bass and treble levels to better contour your signal to your settings. If your overall signal is a little tinny, cut your signals treble a little; for overly mushy signals – try to increase it. If you need more low-end, boost your bass control; or cut it to help reduce punchy audio.

Telephone output for 'music on hold' application

Add a little flair to your telephone system with the Asystems’ music-on-hold output. The Euroblock connector is perfect for permanent installations. This output also doubles as a zone output for side-fill or auxiliary output for remote areas.

  • 6 input channels, each with volume control
  • 120 Watt amplifier output channel
  • Bass and treble controls on master output
  • Balanced Euroblock mic/line inputs
  • Phantom Power on/off for channels 1 and 2
  • Mute & VCA remote connectors
  • Telephone output for ‘music on hold’ application
  • Two stereo RCA input connectors
  • Independent Zone 2 output connector
  • Priority muting by VOX threshold control
  • Screw-terminal speaker outputs


Front Panel


The front panel controls of the GA6120 includes a power switch and six rotary gain controls for each input channel, plus a master level control that is accompanied by bass and treble controls. There are three LED indicators; master signal and peak LEDs as well as a power LED.

Rear Panel

Power Output (Peak) 120W
Input Section
RCA Input 2 Stereo
Euroblock Inputs 4
Frequency Response 70Hz to 18kHz ±2dB
Link In Yes
Output Section
Balanced Screw Terminal Output Yes
Balanced Phoenix Output Yes
Zone 2 (Telephone Use) Yes
70V Output Yes
100V Output Yes
S/N Ratio All>60dB
Input Signal LED Yes
Master Out Clip LED Yes
Treble & Bass (Output) Yes
Alert & Announce Chimes Yes
VOX Threshold Yes
Number of Input Channels 6
Input Volume Control 6
Master Out Level Control 1
THD@ 1kHz (10% Rated Output) < 0.5%
Phantom Power 14~15V
Battery Connector 24V DC
Dimensions (WxHxD) 483 x 105 x 293 mm

(19.02” x 4.13” x 11.54”)

Data Sheet (English): ds_GA6120_GA6240_en.pdf