TPA3116D2

The motion amplification circuit was open sourced by Hack Lab, the master of Station B, and was successfully reproduced.
The following is the introduction of the up owner:
[Open Source] 100 yuan homemade audio amplifier, can it produce good sound? _bilibili_bilibili
"The long-promised power amplifier is finally ready. I hope everyone likes it. I am quite satisfied with this work. But after all, the cost of this thing is only about a hundred yuan, compared with thousands of designated There is no comparison, so I hope everyone will watch the movie rationally. As the saying goes, "One penny is worth two cents of sound quality, one cent is two cents of sound quality, and one dollar is three cents of sound quality." What I hope to achieve is three cents for two cents of sound quality. Please wear headphones, otherwise you really can't hear anything. There are no advertisements in this project, and I don't sell goods. I just share the fruits of my labor as open source. It really took a lot of time and effort, so I hope you can give me some feedback. Thank you for your continued support!”