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 - Well, if I can be so bold at least we now know Roger Modjeski must be deaf if he can’t hear the difference in fuses. He’s deaf and stubborn. Amp manufacturers! Harumph! Uh, Mr. Smarty Pants - Why should there be ANY difference whatsoever in measured resistance if fuses are not directional? They should measure exactly equal. He’ll-loo! None of you Barko Lounger experts have figured that one out, eh? Besides, HiFi Tuning acknowledges the differences in measured resistance don't compor entirely with the sonic differences. It's a Strawman argument on your part to put words in anyone's mouth that anyone thinks there must be some other, as yet unexplained, reason for the sometimes great difference in the sound between fuses and between directions. 
Geoffkait 7-16-2017
Mr. Smarty Pants - Why should there be any difference whatsoever in measured resistance if fuses are not directional? They should measure exactly equal. He’ll-loo! None of you Barko Lounger experts have figured that one out, eh?
If you are addressing me, Geoff, one of the quotes in my post just above clearly states three possible reasons, all of them related to sources of imprecision in the measurement process. The measured differences in directionality that were reported in the HFT paper were so miniscule that any or all of those reasons become legitimate possibilities.

And then a fourth possibility would be the butterfly that Mr. Modjeski referred to :-)

Regards,
-- Al
 

Sorry, Al, I wasn’t addressing you specifically, though now that I think about it.... My response to your (silly) argument concerning precision of measurements, answer me this: why do the (small) measured differences ALWAYS correlate with the listening tests? It there was an issue with precision that would not be the case. Follow? It can’t be the fuse holders since the HiFi Tuning data didn’t measure the fuses in their holders. If they (and Roger Modjeski) HAD measured them in their holders, and came up with what you call insignificant differences or differences that are not precise that clearly means that your and Atmasphere’s theory of the fuse holders causing the differences must be wrong. Very wrong. Or did Atmasphere somehow measure more precisely than the Germans? Really?Assuming he actually did, which I'm now not so sure of. You can’t have it both ways. Capish? Another question: you haven’t really read the HiFi Tuning data sheets very carefully, have you? 😛
For Al: perhaps the greatest phrase ever uttered by a lawyer was, "If the glove doesn't fit you must acquit." 

😀
@almarg 

Al, are you making a run for this year's Nobel for Patience? Just wanted to warn you, I think that they retired it and gave it to Ralph in perpetuity. But good luck, anyhow.