Sorry you "nattering nabobs of negativism," but fuses do make a difference. Most of that other stuff people are pushing are just snake oil in my opinion. I put SR Blues in my ARC CD player and Krell integrated and the difference was significant and undeniable. Even Paul at PS Audio admits they improve sound but also admits he can't explain why. He has a video online if you're interested. If you are so set in your mind that a fuse cannot affect sound, and I'll agree that it doesn't make sense that it would, but your stubborness is keeping you from hearing your system closer to what it is capable of.
