If a mere fuse caused any audible change in sound in any of my equipment then you can be assured I would be rid of that useless POS boat anchor equipment in a flash. If a mere fuse makes an audible difference in your gear then you can be pretty much assured that anything else electrical you own or anything electrical your neighbours own will ALL affect your sound according to what is or isn’t plugged in.
So, if you owned any gear from PS Audio or Wyred4Sound, you'd get rid of it? Rather hasty, wouldn't you say?
All the best,
Nonoise