McIntosh fuse changeout to make better sound

Replacing a fuse or even twisting the existing fuse back and forth in its holder will make a difference, if the component has ben in service for a long period of time. As George pointed out, after many cycles of off and on, the electrode can burn and weaken. Also, after time, the contacts (just as with speaker cable connectors and IC cable connectors) may also become a bit oxidized or corroded and need cleaned, or at least twisted in the holder, to remove oxidation and improve contact.
In most cases the difference you’ll hear by replacing old burned fuses with standard new replacement fuses or cleaning contacts, would be the same as putting in a $150.00 super fuse, but without the cost....Jim

In most cases the difference you’ll hear by replacing old burned fuses with standard new replacement fuses or cleaning contacts, would be the same as putting in a $150.00 super fuse, but without the cost....Jim

Ya got that right 
 https://youtu.be/l886uQi6Rhg?t=48

Maybe with something made at the turn of last century would moving a fuse around inside its holder make a difference.  It would have to be poorly made, bordering on primitive. Never seen a fuse do what Georgie says with his summer vacation slide shows. 

All that supposed corrosion would be evident throughout the chassis and not just at one tiny point of contact where the fuse resides. Listen to yourselves. You're delusional and grasping at straws. 

Going one step further, how is it that a different fuse can't possibly contribute to the sound of an amp but just moving an existing fuse can, when all it's supposed to be is safety feature and not at all capable of affecting the sound? You can't have it both ways.

All the best,
Nonoise

@nonoise PRECISELY!

Hate to brake the news, but audio fuses and fuse holders have the same function and basic design as they have had for the past 40 years and any contact connection that is made to be removed or replaced is susceptible to oxidation and corrosion, including your cables, cords, wall plugs and switch contacts. Not sure where you're coming from on this one nonoise......Jim