I hope the tech from PV sees this post.........Just bought a VB-2 from a music dealer in mint condition, model made in USA. Ran it a few times and blew the internal fuse, no output. Got it repaired, brand new output tubes, the repairman said it was bad tubes. Ran it at a gig for two + hours, everything fine until pfft. the fuse blew again. HELP! Can I ever trust this amp???? My thoughts are that since each amp has a serial number, Peavey should be able to determine exactly when built, and any associated problems and maybe exchange a clunker for a unit that works and is reliable. By purchasing one from a second source, the original warranty seems to be N/G. While I understand this, it's just not fair to the new owner or the Peavey name itself! This amp is new! If there are any suggestions on what could cause this, it would be greatly appreciated as well....but the trust issue is huge after the amp blew the fuse twice. It can't be the tubes after two sets, because if the tube circuit was that delicate, what good would the amp be???