Fuses fuses fuses


Ok, this is about fuses

1- a standard Bussman fuse is UL approved. Are any "high end" fuses UL approved?

2- do any component manufacturers supply their gear with any of the usual suspects of high end fuses as opposed to a standard Bussman?

3- let's say fuses do make a difference. Given incoming power is AC, why could fuses be directional? 

Not meaning to light any fires here- 

thanks in advance 
128x128zavato
What I haven't learned Geoff is why does a "simple" AC fuse sell for 100.00? Yes, I have listened to SR red and black, oh there are differences for sure but for the money there are more substantive ways to spend in my estimation. I also experimented with a gold fuse years back in may Berning's amp, it was a gift from a fellow Berning owner, marginal improvement, I think. It retailed for 40.00. Haven't personally witnessed the directional cable phenomena but did experiment years back, didn't hear differences, Stereovox, Cardas, Harmonic Tech and I'm sure a few others, it's been a while. Reversing fuses? I'll pass, I have to draw the line somewhere otherwise I'd have too little time to do what drew me to this place to begin with. Agree concerning cryogenic treatment on wires AND tubes. So you see we don't disagree on everything. 

Thanks Al and Ralph for your explanations and for keeping it real. 
Atmosphere, if you’re pretending to be dense you’re doing an excellent job. Don’t you get it, we’ve already eliminated all of your cable directionality causes. It's the wire itself. Nobody said there aren't other issues like shielding. As the Audioquest dude said you have to be aware of al of them and deal with them, CONTROL them, accordingly. Capish?
@tubegroover 
I concur.
I feel that aftermarket fuse manufacturers are simply cashing in on the fuse upgrade mentality.
Are there differences-Yes. 
Are they worth the money-YMMV
B
All aftermarket fuses are not priced at $100. One is $175. So what? Don’t be a knucklehead. Some aftermarket fuses are much less? Some are $20, some are $5. So what? Of course price is not the subject of this thread. Who cares? Like anything else in the hobby prices vary. For anything you can name prices vary all over the place. So what? If you want to listen to cheap junk that’s your prerogative.
I think we've finally narrowed it down. YMMV is the final arbiter since it's up to the individual to decide how much cost for how much further enjoyment. My MPG went up considerably since I've reversed the fuses to appreciate the costs incurred almost two years ago. Money well spent as well forgotten. I've spent more on wine tastings in the meantime. 🍷🍷🍷

This is like the snake eating it's tail. Can we end this now?

All the best,
Nonoise