I've had fuses in gear that remained unmolested for decades and simply nothing degraded…example…a 1961 Fender Bandmaster guitar amp that I abused for 25 years, and an even earlier Deluxe…fuse? Shcmuze! If there was degradation it didn't seem to have any effect on the sound of those amps, but there was no reason to check…imagine how well they would have worked with new Littlefuses! Or maybe they would have lost some of their charm…hmm...Nyname is incorrect as it's doubtful I'll ever become a better person (simply too late), but, again, regardless of the belief that the electrons zipping to and fro in the Magic Fuses touted around here will somehow infect the adjoining gear bits with Better Soundstaging, it simply defies logic that those "happier" electrons are gonna do squat. Vibration, EFI/RMI, etc., are likely utterly irrelevant as regards hair thin fuse wire, but are very important to those who market to the ones concerned about that. The elitist argument of "my rig and ears are simply better than yours" is generally wheeled out in times of desperation when a clearer explanation of what is actually happening is unavailable. Maybe just clean your fuse holders and get back to me.