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

The hurricane is past us.  We had 10 hours of heavy rain and some wind but never lost power.

The HiFi Tuning fuses, 6.3A T Slow blow type arrived this morning.  I installed them in my mono amps this evening and turned the amps on.  One amp stayed on but the other amp turned on only for a moment and shut off.  Pulled the fuse and confirmed with my Ohm meter that it had blown.

Experiment is over.  I've had my fill of hifi fuses.  I hope I can get a refund from the vendor for these two.  I already took it on the chin for the last two fuses.

The Hifi Tuning fuse in my DAC is still working fine and it sounds good.  I'm not touching it.

This is audio.  Sometimes we win and sometimes we lose.  Not knowing isn't an option.  And if anyone wants to claim confirmation bias, I'm almost certain the one amp would not have made any sound had I left the hifi fuses in place.

Only the most truly dedicated among us with a few extra bucks to literally burn would pay a fortune for a device whose job is in fact to burn up and destroy itself when needed. At least no drains involved for the money to go unexpectedly down with that one.

@mapman ”…device whose job is in fact to burn up and destroy itself when needed…”.

 

Well, yeah, but, in my fifty years of being an audiophile I have never had a fuse blow. I would imagine that is not an unusual experience.

+ ghdprentice

Same here but not 50 years… never had a power plug outlet fuse blow.  Risk is very low and not really needed…give me those Sluggo’s instead and save 💰