“Tiny little mono amp that works well. Using the PWM pins for sound via a Pi4, through the amp and a speaker from a laptop. Sound is surprisingly good. There is a small pulse that can be heard through the speaker so think I will need a small circuit to regulate the current.”
“Does what it says on the tin. Just remember if you don't have differentially input you need to tie one of the inputs to ground.
Forgot this and thought it was quite. Then wired it correctly and the sound came forth. :)”
