Good Area!(From China)

Humm, to be precise, I am not a professional audio development engineer, but an amateur-I saw more strange ideas in DiyAudio forum than in China, and I thought it worthwhile to discuss these ideas, so I participated in it.

For amateur purposes, our production may be irrational, non-cost-optimized and incomprehensible. PCB is my drawing board-I hope to have a good communication result on a compatible platform.