Yes a fuse in the amp can be very helpful it saved a $3000 stereo Musical fidelity and some vintage stuff that couldc have caught fire and burned down the house the development town county and other parts of the state for want of a Nail. (In fond memory of rosanne rosannadana)
do fancy fuses help?
wondering if there is any consensus whether expensive fuses, e.g. hi-fi tuning ceramic, really do help and are worth the money. is it like power cord voodoo (that is, they can make an audible improvement, logic be damned), or is there a theory behind why they might improve things? My amp uses 6 fuses, so a $250 experiment is only "cheap" upgrade by our insane audiophile standards.