McIntosh fuse changeout to make better sound

Reading this to get some idea if fuses make a difference?

An idea to ignore George and his ilk.
He doesn't believe it does (nor do they).
And will say it 100 times.

I've tried a few iterations of fuses.
All to good effect.

A few years ago put 2 x SR Black in my Perreaux amp.
After lots of reading, decided to upgrade my Dac fuse to SR.
Last year switched the amp and Dac fuses for SR Orange.

Every time, worthwhile. 

If you are reading this, and are new here, those posting negative comments usually don't believe tweaks improve sound reproduction.

95% of the time, they have no experience of any of the products.
And then, to top it all off, they seem to think those of us who are trying to improve their sound (and subjectively and honestly explaining these effects for others to consider) that we are somehow on the payroll of these products.

My ears are my evidence, and Heaven Up Here sounded sublime tonight

That's never affect...

And many have noticed the difference they have made to their systems.
My lying ears tell me so.

And damn, it sounds good!

I’m keen to send some of my older fuses to my cousin to try.
He has an MA6300 McIntosh intergrated amplifier.

It uses a 5 amp fuse. Is it okay to put in a 6 amp fuse?