JJBass

Bump That's one hell of a synth tone, anyone have any joy achieving it?

I've had a Streamer Stage 1 for a couple of years now, was bought second hand but practically unused from the looks of it. It's been fantastic but about 2 months ago started making scratching noises occasionally when plugged in, lasting about 2/3 seconds. I assumed it was a dirty jack socket but switch cleaner didn't work. I've ruled out heads/cabs/leads etc as the problem, it's definately the bass. It was getting more and more frequent so I had the jack socket replaced. Got it home and it's still having the same problem, albeit less frequently. I rang the luthier who'd replaced the jack who said he thought it might be a problem with the electronics? Anyone ever encountered something similar? Problem continues whether its in active or passive mode (push/pull volume pot). If it is a problem with the preamp, is it worth me just replacing it with the same stock preamp or is there a worthwhile upgrade? I know a lot of Warwick users swap out the stock preamp and MEC pups.