I noticed the other day that was getting this odd, high pitched sort of interference that sort of sounded like ultra-fast Morse code when playing. It lasted several seconds, then went away. After it happened a couple more times, I asked Dan at Premier Bass what it might be and he told me it was probably from my cell phone. Sure enough, if I have my cell phone on, and in my pocket, it apparently occasionally gives off a signal that is picked up by my bass preamp. Just thought I'd share since I figure some others might be getting similar interefence and wonder where it's coming from. If I turn off the phone, or put it a few feet away from the bass, I don't have the problem.