TPA3118 Class-D 60W Mono Amplifier Board

(Gold- A542) TPA3116D2 100W Class-D Mono Amplifier Board

LM3886 Mono Hi-Fi Single Channel 68W Amplifier Board without Heat Sink

IRF150N Two MOSFET Mono Board Without Heat Sink

Maharaja 2-Transistor (TTC5200) Mono

Maharaja 2-Transistor Compact Mono Amplifier Board for 1313 Size Car Stereo Cabinet Amplifiers

12V / 24V, 130W Mono Class-D amplifier board with inbuilt boost converter

TPA3116D2 Class-D 100W Mono Amplifier Board from D-Tech Audio

Four Transistor Toshiba (C5198 + A1941) Bridge Mono Amplifier Board for 1313 Size Car Stereo Cabinet Amplifiers from YAS Audios

Toshiba (2SC5200 + 2SA1943) Bridge Mono Amplifier Board from YAS Audios