My daughter is in a School of Rock band with many other kids. In a show in a few weeks she'd like to use a mandolin with a couple of piezo disc pickups I added inside it to do Maggie May. It's quick change, she unplugs her electric guitar and plugs in the mandolin. In the first rehearsal it didn't work, not sure if it was settings, volume or something else. I may have to add a preamp and was wondering what the best route to take. I'm not really interested in cutting the instrument any more than the hole I made for the plug. Most of the battery mini amps have the smaller jack outputs. Any help would be appreciated.
PS I've started looking for parts for my first CBG