What is the science behind audiophile fuses?


There were many threads on the topic of "audiophile fuses" on this forum, and I sure don't want to open old wounds and trench warfare. The fuse on my preamp blew suddenly two days ago, which prompted me to search for a replacement. That's when I came across the term "audiophile fuse" and the fact that they demand far-out prices. Deeper curiosity brought me to several other fora, where users posted glowing praises about their Zero fuses and other exotica. Now I am a scientist, but not a physicist or electrical engineer: so please enlighten me! How can a fuse have an audible influence on the signal, when the signal does not even pass through it? How can a fuse be "directional" when it deals with alternate current? I mean, if I recall my university physics, a fuse is basically a safety valve and nothing more. Am I completely missing an important point here? My scientific field is drug discovery, and because of this background I am thoroughly familiar with the power and reality of the placebo effect. I that's what I am seeing here, or is it real physics? I need objective facts and not opinions, please. I really appreciate your help!

 
128x128reimarc

If fuses don't make any difference then why did most of the high end amp manufacturers stop using rail fuses, it's definitely not to save money.

Back one money was harder to come by, when the system wasn’t flooded with it and people actually worked hard for it they were less likely to spend money on stuff like audio file fuses along with many other products. There’s so much money out there people throwing around on stuff just because they’re bored. It’s absolutely the placebo effect.

Amnesia has mercifully aided in my forgetting who that person is you mentioned immediately above.

However, I will take this moment to remember the true champion of the audiophile fuse, and while I may not have agreed with him, I much liked him.  I am speaking of a true credit to this website, Oregonpapa.

 

Where’s millercarbon when you need him? I can already picture him riding in on Shadowfax to defeat the dark enemies and doubters of the audiophile fuse.

the lord of the rings gifs — arwwenn: “Run, Shadowfax. Show ...

Op congrats in that it sounds like you got a good handle on the topic.  Having seen it all here, why  one would come to this site  for science on the topic beyond what is readily available elsewhere is beyond me however.  
 

Nothing more to see here.  May the force be with you!

In the history of all fuse threads, and correct me if I am wrong, there has never been a straight answer regarding how the special audiophile fuses work from a manufacturer (spell check roxy54) or retailer.

Among those answers by users, as interpreted by myself:

A billion volts are shot through the fuse wire before assembly.

A thicker fuse wire is used.

A much higher quality (better conductivity) fuse wire is used.

Somehow graphene enters the picture.

A liquid or other dampener is used in the fuse to prevent fuse wire from vibrating.

More conductive fuse end caps.

Can’t remember any others.

 

It is not disputed that they certainly have gained favor by users.

 

That's a fair question that I can't answer from experience. I would have been very interested in an actual informed answer if anyone can offer one.  May just have to do some searching and reading if I truly want to know.  

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reimarc

 There were many threads on the topic of "audiophile fuses" on this forum ...

Those threads are still there. You might want to read a few.

 

I have never used an audiophile fuse so I can't comment on them either way.

But, I believe the forthcoming answers will be long on opinion and short on objective facts.