Audio kit: 100 W 8 ohms MOSFET amplifier with IRF9540 - IRF540 | Audio amplifier, Amplifier, Circuit diagram
Mosfet Power Amplifier 100W RMS 8 Ohm | Amplifier, Power amplifiers, Audio amplifier
Amazon.com: TPA3116 Pure Sound High Efficiency Stable 12-26VDC Digital Audio Power Amplifier Board 50W*2+100W 2.1 Channels Subwoofer Adjustable Mini for Speaker of 4-8 Ohms : Electronics