Anyone seen a similar mod?
MHyder
Hello, everyone! I'm trying to figure out what's going on with this MusicMan 210-HD 130 I have. I think it's a 1976, and it has an interesting looking modification on the back panel (see photo). There are what look like 2 XLR line outs, but I'm not sure. Anyone know a safe way to test them? Thanks for looking!
