Mini Audio Amplifier

SKU: STK378fa814 Category: Tag:

The AVG-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.


  • 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

Additional information

Weight 1 kg
Dimensions 27 × 21 × 7 cm

Audio Input Audio Output
Input 2 stereo audio,1 MIC Output 1 Amplifier,1 stereo audio
Input Connector 2 RCA1 3.5mm jack1 6.5mm jack Output Connector 1 3.5mm jack1 Captive screw connector, 4 pole
Input Impedance >10KΩ Output Impedance 50Ω/stereo, 4~8Ω/Amplifier
Audio General
Frequency Response 20Hz ~ 20KHz CMRR >70dB@20Hz~20KHz
SNR 80dB at maximum output Bandwidth 20Hz ~ 25KHz
Stereo Channel Separation >75dB@20Hz to 20KHz THD + Noise 1%@1KHz, 0.3%@20KHz at nominal level
Voltage Gain 32dB Power Output 20 Watts X 2 (4 Ohms)
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 Front Panel Control Optional mountable keypad
Options TCP/IP control by PTNET(PTN’s programmable interface)

NOTE: All nominal levels are ±10%.