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The MA1 is a small digital amplifier (Class D), with built in EQ control and a MIC mixer function.It is in a very small form factor, but with powerful functions, including bridging, dual-mono, EQ control, microphone mixer, etc.
  • Input Impedance
  • SNR
  • Serial Control Port
  • Power Supply
Brand: AVGear
Model: Ma1
  • The MA1 features full 2 way RS232 control and is supported by a free 2 way RS232 driver for Rti.
  • The driver provides feedback and control over volume, bass, treble, input selection and muting.

Inputs :

  • 2 RCA (L and R), 1 x 3.5mm stereo and 1 MIC input

Output :

  • 4 pole captive screw connector and 1 x 3.5mm stereo jack

Power Output :

  • 2x20w @ 4 Ohm Class D
  • EQ control , volume, input selection and microphone mixer functions can be directly controlled from the buttons on the unit. 
  • Built in RS232 control port with an optional IR receiver and remote
  • Dimensions : W123 x H38 x D87mm

24VDC 3A power supply included

Audio Input

Audio Output

Input 2 Stereo audio

1 Amplifier
1 Stereo audio

Input Connector 2 RCA
1 3.5mm jack
1 6.5mm jack
Output Connector

1 Captive screw connector(4 pole)
1 3.5mm jack

Input Impedance >10KΩ/Stero, 600Ω/MIC Output Impedance

50Ω/Stereo, 4~8Ω/Amplifier

Audio General

Frequency Response 20Hz ~ 20KHz CMRR

>[email protected] ~ 20KHz

SNR 80dB at maximum output Bandwidth

20Hz ~ 25KHz

Stereo Channel Separation >[email protected] ~ 20KHz THD + Noise

1%@1KHz, 0.3%@20KHz at nominal level

Voltage Gain 32dB Power Output

2x20Watt (4Ohm)

Control parts

Serial Control Port RS-232, 9-pin female D connector Pin Configurations

2 = TX, 3 = RX, 5 = GND

IR Remote Optional IR remote Wall Panel Control

Optional mountable keypad

Max DC Compensation 1.5V Humidity

10% ~ 90%

Temperature -20℃ ~ +70℃ Power Comsumption

24VDC, 3A

Power Supply 100VAC ~ 240VAC, 50/60Hz Product Weight


Case Dimension W123 x H38 x D87mm (Wall/Table mountable)