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The guru on fuses:

For two years, I have asked why and how fuses could possibly matter. All I got was arguments of faith, pro or con. I needed a real audio guru who actually knows. Here is a link from John Curl’s discussion on Parasound’s website. He engineered and designed some some great equipment, including some Mark Levinson gear, The Grateful Dead’s 30 plus McIntosh amp powered Wall of Sound, and his admittedly, somewhat price compromised Parasound designs. He discusses the electrical properties of standard fuses, showing how they are compromised. The entire article is quite enlightening, but to skip to the fuse section, go to the bottom half of page 6. https://www.parasound.com/pdfs/JCinterview.pdf

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oldhvymec
5,101 posts
 
I liked the part about magnetic resistors vs nonmagnetic. Also the different cap composition and that it’s usually the first part to fail BETWEEN different stages.. Again quality parts are going a long ways, but he emphasizes the importance of HIGH quality copper resistors..
AND the best in dielectrics when it comes to cap composition. He didn’t seem to be a very big fan of mylar or aluminum either. I also picked up we should build, to spec, then listen, not concede that because the units are specked correctly no complaint can exist.. He says "LISTENING" is still the final say so, in a nut shell..

I say what about magnets on either side of the fuse holder.. Just like a laser being focused with magnets.. What the heck is that gonna do?

I been wondering? He doesn’t like stray magnetic eddies.. What about where we want them... That silly fuse?

Anyways, time to feed the chickens..

Regards..
georgehifi's avatar
georgehifi
10,312 posts
 
Anyways, time to feed the chickens..
Yeah give’em a fuse also , "maybe" then they’ll **** out directional eggs also!

No "snake oil" fuse threads for weeks on end, then suddenly two new fuse threads within a couple of hours.
These guys are behind it, https://ibb.co/LSrDX77

Cheers George
nonoise's avatar
nonoise
10,883 posts
 
Amazing how some can read that passage from the link and come away dumber than they were.

By the way, having tried different fuses and hearing the results is in no way an argument of faith. Having faith in something requires not having proof.

All the best,
Nonoise
audioman58's avatar
audioman58
4,172 posts
 
To simplify this ,the resistive index on a steel fuse is about 18 
copper ,silver 75,77 ,4 x less resistance it’s like a 1 inch pipe 
vs a 1/4 inch pipe the energy runs much smoother ,much
is much lower low lever distortions ,these can be seen clearly on a scope , sonicly they do improve the sound ,and each fuse is cumulative . The high end fuse has been progressing and selling 
not everyone has a tin ear and yes they can take well over 100 hours to fully settle in .that’s my opinion .everyone may have their own beliefs like religion ,take from it what you want ,the rest 
respect others beliefs . I see far too many people knocking others .
maybe they should listen to more music .
danvignau's avatar
danvignau OP
935 posts
 
nonoise  Of course you are right; However, too many of the fuse people, (and especially the wire trestle people, seem to go on faith, especially the naysayers, a group I may have belonged to for too long.  I am still waiting to hear the difference on my system, but my fuses may not do much.  I also have a big, sensitive NASA circuit breaker per channel for power switches.  Only once ever, have they tripped (two of four).  No fuse has ever blown, and I often listen with the volume up to just before the clipping LED's trigger.  
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