I never was one to seek out scientific proof about how any piece of my gear sounds.
I either like it or I don't.
It's an improvement or it's not and I won't try and tell anyone it's 2% or 20% or 200% better.
Night and day differences for me have all been in the past.
It's all shadings now, once you get past entry level gear.
It's also cumulative.
For the folks who like to grade system tweaks, the more 1% improvements you make eventually they add up to a 20% improvement or more.
Science hasn't yet given us all the answers to everything outside of this hobby either.
Neither do reviews give us all the answers, they are specific to who is doing the review and the gear is specific to them.
I can say that the Supreme fuses improve my sound, in my system, but I can't say they will do it yours, or that you could hear the difference in my system.Or that something is wrong with you if you can't.
Some folks make a big point out of the fact that they don't trust their ears,that the ears can be tricked(and provide the scientific proof of such claims, when provoked)so that for them to get a handle on things like fuses, they need proof in the form of a scientific white paper.
I've often thought that these types of audiophiles don't need to even buy audio gear,all they should need for musical enjoyment would be the sheet music.
I've always only had my ears to rely on, and I've been fortunate to have had some friends who were able to indulge in some very costly systems, that did in fact deliver on the goods.It was an education.
They didn't get their money by being fools, they didn't spend their money like fools and they weren't foolish enough to think that out of the box and into the wall was the only way to go.
The more you dable in this hobby and the more experience you have with being able to pick up on subtle as well as profound changes, the more things like fuses should make sense.
What I find so intriguing is that even at 100 bucks a pop,an upgraded fuse in a well tweeked system is about as cheap as it gets, and is so simple that anyone can "mod" their gear this way.
Scientific proof?
I don't need any,to me it's as simple as replacing a burned out light bulb, I know that works, don't care how.
I can see it with my own eyes.
Replace a stock fuse with a Supreme and I can hear the improvement.Don't care how it works.
I can hear it with my own ears.