STK IC Bridge Mono Driver Board for STK4141 or 4191 or 4231 IC from Maxwin Brand (Size: 90mm x 38mm)

STK4231 (100+100)Watts Stereo Amplifier IC

Maharaja 12-Transistor 600W Parallel Mono Amplifier Board

Maharaja 8-Transistor 400W Parallel Mono Amplifier Board

8-Transistor 400W RMS Parallel with Bridge mono Amplifier Board

RBL Plus 400W Class-D Mono Amplifier Board

Maharaja 6-Transistor 300W Parallel Mono Amplifier Board

Maharaja 4-Transistor Bridge Mono Amplifier Board

4-Transistor Bridge Mono Amplifier Board from Sruthi Audio

4-Transistor Parallel Mono Amplifier Board from Extreme Amps Company