Tda7377 2.1 Sound Channel 20w*2+30w Bass Hifi Power Amplifier Board With Tone Board Volume Adjustment Subwoofer Audio Amplifier - Home Theater Amplifiers - AliExpress
How to make audio amplifier using TDA7377 | 12V Stereo 30W - YouTube
Tda7377 Diy Amplifier Board 12v Single Power Computer Class Ab Stereo 2 Channel Sound And 2.0 Power Amplifier Board 30w*2 - Home Theater Amplifiers - AliExpress
30w Stereo Audio Amplifier Circuit | Super Bass | Without PCB - YouTube