Alfatron PA100V

Power Amplifier is a 100v /70v 40W Power Amplifier (Class-D)

Categories: ,


Alfatron PA100V

The ALF-PA100V Power Amplifier is a 40W Power Amplifier (Class-D) with output alternatively at 70V or 100V. It has 2 stereo inputs (1 × 3.5mm jack for line-in, 2 x RCA for L&R), 1 digital input & 1 balanced MIC. It is integrated with powerful functions, including ducking function, EQ control, MIC mixer, and the MIC input supports 3 levels with condenser MIC, dynamic MIC & line audio input. As for power amplifiers, we normally have voltages at 70V and 100V for different countries, but PA100V is designed to integrate with both voltages to meet different requirements.

Product Features

  • Mono audio output at 40 Watts. Switchable between 70V and 100V.
  • Ducking function. 16 ID codes for controlling between different PA100V amplifiers.
  • 3-level MIC input, supports condenser microphone, dynamic microphone, and wireless microphone.
  • MIC port can support balanced/unbalanced signals, suppressing the external noise effectively.
  • Two stereo audio inputs and one digital audio input, switchable via panel button, IR remote and RS232.
  • Volume / Bass / Treble controllable via panel buttons, IR remote and RS232.
  • Fast switching speed for good performance. Convection cooled, a fan is not needed.
  • LED indicator, for power and working status.
  • Antistatic case design to provide good protection for long-term and stable performance


Additional information

Weight 0.86 kg
Dimensions 144 × 130 × 44 cm


Audio Input  Audio Output 
 Input  2 stereo audio 1 MIC 

1 Digital fiber audio 

 Output   1 mono amplifier 

Input Connector 

2 RCA 1 3.5mm jack 

1 3-pole 3.81mm captive screw connector 

1 SPF fiber connector 


Output Connector 

 1 3-pole 3.81mm captive screw connector 
Input Impedance  >10KΩ  Output Type  Constant voltage 70V or 100V. 
Audio General 
Frequency Response  120Hz ~ 20KHz  CMRR  >70dB@20Hz~20KHz 
SNR  80dB (Max)  Bandwidth  120Hz ~ 20KHz 
Rated Power Output   40Watt   THD + Noise  1%@1KHz, 0.3%@20KHz at nominal level 
Voltage Gain  26dB 
Control Function 
 RS232 Control  1 3-pole 3.81mm captive screw connector  Front Panel Control buttons   
ID Code Control  16 ID codes for control. 
Optional  IR remote 
Temperature  -10 ~ +40  Humidity  10% ~ 90% 
Power Supply  DC 24V power adapter  Standby Power Consumption   5W 
Case Dimension  W130 x H44 x D144mm (1U high)  Product Weight  0.86Kg