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

bdp24
I’m bound to regret this, but just can’t resist. So, on one side we have Ralph Karsten and Roger Modjeski (as well as almarg and other posters here)---two of the best living audio engineers in the world (I obviously place value in "authority"), and on the other side those who claim fuses are directional. And the explanation for Ralph and Roger (and perhaps Al, etc.) disputing the even possibility of fuses being directional (AC being what it is) is that they are "deluded amp manufacturer(s)"? Ay carumba! Very fitting in these Trumpian days.

bdp24, you don’t even know what an Appeal to Authority is, do you? You cannot win arguments using the Appeal to Authority since not all authorities agree. Follow? You can’t cherry pick your authorities. 🍒 Truth is not established by who can shout louder than the other guy or who has the most perseverance or who has the best credentials. Actually, if I can be blunt about it, one need look no further than the owner of Audioquest to find a real authority on cables and wire who is a strong proponent of wire directionality. Wire is directional. All wire. His opinion trumps all the naysayers, amp manufacturers, whatever. Trump. Get it? The arguments against fuse directionality are a big nothing burger. 🍔

note to self: No one has disputed that cables are directional, you know the ones without shields. So, if they accept that cables are directional they must be getting close to getting on board the fuse directionality train. Really close. All aboard!! 🚇
I hope you guys are listening to music while you are debating fuse directionality. Otherwise, your just wasting precious time.........

Happy Weekend to All...........
Thanks for the concern, ruebent. As for myself, I’d be listening to fuses this weekend if I had any fuses.

>>>>>All we need? If it’s so easy to measure why don’t you or one of the other naysayers measure it? You’re just guessing. Why is it the folks that are already on board the fuse directionality AND Wire Directionality train are supposed to be the ones to measure it?
I have measured it, and often because its so easy. Takes out the guess work. Why people might want to measure it is if they want to see how this actually works with their own eyes (and ears). Its pretty powerful when you can confirm with a simple measurement why it is that reversing the fuse can have an audible impact and its something no-one (not even naysayers like yourself) can take away.
To clarify this more, it "maybe" only audible if the supply stages after the fuse/holder are NOT regulated. Most sources, s/s preamps are so it shouldn't be audible .
+1; Regulation does seem to help. We don't hear any effect in our MP-1 preamp which is very tightly regulated with plenty of headroom.
Sorry if I put words in your mouth. I appreciate that you have clarified what I thought you meant.
No worries! Happy to help out.
Totally agree. They refuse to defuse but choose to infuse an effusive obfuscation instead. Obfusely everyone knows a fuse when flipped around is an esuf which sounds different. Now you can't argue that
+1 and really gets to the heart of the debate on fuse threads.




for the directional fuse people, there are elementary electronics course on the internet for free

MIT also has a nice set of free physics course for those with a few more neurons available