Hello TB, sorry for the long post. I've had some bad luck with my Peavey VB-2. I got it in spring this year. It worked fine until it started giving me small electric shocks when I touched our mixer or a mic. Took it to a tech, the amp was fine, it turned out that somebody changed out the power strip in our rehearsal room, which apparently didn't have proper grounding. It then worked fine for like 2 rehearsals, when it just died away mid-song. Just no sound coming out. I tried both inputs with both channels, different basses, without pedals, anything I thought of. Then I found out that it works when I blug the bass in the fx return. connecting the send and the return with a patch cable didn't help though. So all I know is that the problem must be in the preamp section. So here are my options as I see it: 1) Take it to a tech. Would be my favourite but the problem is, that this amp is pretty unhandy to carry and I don't drive. I did take it to a tech once and I thought: never again! On top of that the guy in the store told me that they will have to charge me around 100 bucks for just checking it. Without guarantee that they can fix it. 2) Send it in on warranty. The problem with that is that I ordered it online from germany. The customer has to pay for international shipping, which will be pretty pricey with this amp. 3) At least check the preamp tubes myself. I've never switched tubes but I'm pretty sure I can do it (there are plenty of instructing videos and posts I believe). The problem is that if I want to access the preamp tubes I'll have to take out some of the power tubes (the VB-2 is designed that way). And then I'd have to setup the bias again right? And I have no experience at all with that. And is it even possible that one of the preamp tubes is broken? Would the amp be dead silent or would there be some sort of noise? What would you guys do? Any advice will be appreciated. I just want my amp back!