Share 'Built-in amp'

Just for a giggle, I decided to complete my latest build with a mini-amp built-into the guitar body.  Anybody else try this? I used a Future Kit FK672 because it is small and comes with a microphone and 2" speaker. Turns out that the electret microphone is way too hot and causes too much feedback, so I switched to a piezo. Of course feedback is still a problem. But I found that I could greatly i…