Categories: ,



The ALF-PA100W is a compact-sized digital amplifier (Class-D) with 3 inputs (1 x L+R stereo audio, 1 x analogue audio, 1 x optical fibre audio).

It features switchable stereo 2 x 50 Watt @ 8 ohm or mono 1 x 100 Watt @ 4 ohm output and boasts complete EQ adjustment and intuitive work status display, making it an ideal addition to a classroom or conference room application.

Product Features

  • 3 Audio inputs: 1 x L+R stereo, 1 x analogue, 1 x optical fibre
  • Switchable stereo / mono output
  • Complete EQ management: including LINE, BASS, TREBLE
  • Easy adjustable volume via a rotary knob
  • Audio loop output
  • Intuitive LED indicators for the input source, control and volume setting
  • Controllable via RS232, IR, TCP/IP (optional), and Web-based GUI.
  • Power off memory


Input  Output 

Input Signal 

1x L+R stereo  audio 1x 3.5mm analog audio 1x Optical Fiber audio   

Output Signal 

1x LOOP   

2x Stereo audio/ 1 Mono audio 



2x RCA   

1x 3.5mm TRS plug 1x SPDIF 



1x 3.5mm jack 1x 4-pin 5.08mm connector 
Input impedance  >10KΩ  Damping coefficient  >100 

Control Ports 

1x RS232 (3-pin pluggable terminal block) 1x IR IN (3.5mm female)    

1x TCP/IP (RJ45 female, optional) 

Panel Control  Front panel buttons& rear panel switcher 
SNR  80dB  THD+ Noise  1%@1KHz 50W 
Separation  75dB 20Hz20KHz  Damping coefficient  100 
Voltage Gain  32dB  Output Power  1×100W@4Ω/2×50W@8Ω 
Power Supply  DC 36V 2.66A  Power Consumption  1.48W 


0~50   Reference 


Dimensions (W*H*D)  148 x44 x165 mm  Weight  0.72kg 


Download Image



Technical Sheet

User Manual


1.)Q. How many inputs does the PA100W support?
A. 3. 1 x RCA, 1 x 3.5mm jack and optical.

2.)Q. Can I use this amplifier with a 100v system?
A. No, the amplifier is a low impedance amplifier. Please see our PA100V amplifier.

3.)Q. What is the output of the amplifier?
A. 100 watts @ 4 Ohm and 2 x 50 watts at 8 Ohm.

4.)Q. How do I control the amplifier?
A. It is controllable via IR remote control, RS232 and via the TCP/IP port.

5.)Q. Am I able to loop this unit with another PA100W?
A. Yes, there is a loop out.