okay here is an update. I went to guitar center and it didn't make that noise. I came home and then realized it was my guitar after troubleshooting. It's not the electronics of the guitar either. It's the strings like resonating or something. I tried my friends guitar and same thing. I never noticed this before though. I put my ear up to the neck of the guitar and played an E5 staccato and then it made that noise. That's really the only time it does that. Anyone else notice this on their guitars? How can I fix this problem? I recently changed strings, so this is the first time I played though the tube amp with new strings. I'm not sure what to do about this..