LittelFuses Series 285 AUDIO/MEDICAL Quality

In the link I provided the users reported hearing a difference between a standard fuse, the gold capped, and the rhodium capped Littelfuse. 
Also noted was the PADIS fuse which uses copper.

Yes, Thank you for that link. 

I have Audio Research gear and once asked them why they didn’t use audio-grade fuses. Their response was simple in that they could not hear a difference between the standard Buss fuse (they use) and the expensive “audio” fuses.

Without going into the whole fuse thing, replacing a fast blow fuse with a slow blow is not a good idea.

Agree to the fast-blow, slow-blow,
The littelfuses  Series 285 were for my Slow blow fuses,  but the 

BHK 250 Amp uses 4  F10AL250V F= Fast Blow 10 AMP L=Low breaking capacity 250V glass 5x20 fuses for the speaker connections 

I have yet to find any ceramic 5x20 fuses which are L=Low Breaking capacity. I have found is a H=High breaking capacity.

I am skeptical that any of the  audiophile fuses which are ceramic are L=Low breaking.  Could this become an issue?