How many fuses in a McIntosh MC275?

I see...fuses are a ridiculous upgrade to you. Yet I heard improvements every time I upgraded from a std fuse to an audiophile fuse.

Why do you waist time trying to convince me of something I did not even ask about? You are surely waisting my time trying to honestly understand if you had something to say...oh well...

Thanks

Are you sure it is a 200mA? From what I see in the service menu, the main power fuse is 250V 4A slow-blow and two more inside for speakers output are 250V 2A slow-blow. You can download a service menu from here.

you can only prove hearing improvements on the blind a/b tests. blind tests is where all audi'o'philes fail to ID stock fuse from aftermarket and other silly unnecessary stuff.
as you know, fuses tend to blow and usually are all visible on the pcb or direct wiring. the improvement you've heard is possibly from the quality of the contact so all you need to do is to clean fuse terminals with qtip and contact cleaner.

I read the schematic and found that the two fuses inside are actually for filament heaters, not speaker outputs.

Nothing wrong with blind tests per se but it's certainly a mistake to think that if someone cannot hear a fuse or whatever in a blind test that the fuse or whatever doesn't work in other systems. There are many reasons why audiophiles get null or inconclusive results with some tweaks. You know what I'm talkin' about.