Hello everyone. I have an Ampeg SVT-CL (made in 'Nam) which seemed to get a disfunction about 2 and a half months ago. I bought it around 6 months ago. Both lights were blinking, no sound would come etc. so I figured it was the tubes. I sent it to where I bought it, and I've now waited for those two months and now they're telling me I have to pay 789 USD (the real valuta is NOK) for the tubes and the reparation. Which I seem to be highly illogical - but they say it just EATS up tubes. Which is, you know, fine but I barely used the amp when the tubes went. Really, I barely used it. I wasn't actively playing. Then one day, I turned it on, and there was this big "bang" coming from it. What is really going on here? I can't seem to get it from warranty because it's the tubes that there's something wrong with. Does Ampeg replacement tubes really cost that much??