Hello there, its been a while since I've ventured to talkbass, due to computer troubles. But its good to be back. In the past couple months, my Sansamp Bass DI has been giving me NOTHING but feedback (pure pure buzz, no signal from my bass at all). The buzzing only ceases when I engage the 'Ground Control' feature. I have no idea why this stops the buzzing, but it does. However, when this feature is engaged, it takes alot of volume out of my bass signal, so playing along with my band is out of the question. Since its began doing this, I have not had the cash, nor the drive to bring it in and get it fixed. And sadly, I've been running straight into my head. Its one of the older models, and i bought it used, so warranty is not something i can fall back on. I was just wondering if anyone has had this same problem, and if so, what kind of costs am I looking at to fix it. Replacing this would be a pain in my wallet, and i dont think i have 250 to blow on another one, but at the same time, this little box works absolute magic for my sound. I'm in a bit of a pickle, and with some big shows lined up, I think its time I start really making my bass sound how i want it.