LM380 based audio amp

I designed this amplifier for a local artist who wanted to put speakers inside a microphone and play a song through it (weird but interesting). We couldn’t find any cheap off-the-shelf amplifier modules and the ones that we did find were of really crapy quality. So I built one prototype on a proto board and assembled a small unit. After we were satisfied with the sound quality, we decided to make a small batch of them. Today these modules are part of her exhibition (singing microphones) touring the world! Take a look at them here.