Ok...I blew a fuse the other day on my 2 channel/triple rectifier. The fuse that was in it was a 3.5A/250v SB, the owner's manual says 4A/250V ...but (plot twist) - the markings on the back of the cab around the fuse holder says 3A on top and 6.25A SB on the bottom. Given the owner's manual for a 2 channel triple rec, I would have expected it to say 4A on top and 2A SB on the bottom. So...2 questions: what's the story with my amp being different and what fuse should I put in it? A 6.25A SB/250V? Thanks for any help you can offer and please pardon my idiocy if this is a silly question!