Experience with high end fuses????

Perhaps someone was asleep during the early eighties, when SO MANY of us learned that measurements mean VERY LITTLE when it comes to the sound of a high end system. I was skeptical(to say the least) about whether Hi-Fi Tuning fuses would make an audible difference. Any doubt was washed away by the first few notes of my favorite reference recordings, after trying them in the AC line of my main amps. Some systems are simply not resolving enough, some listeners' aural acuity cannot discern and/or some are too convinced/mentally blocked/untrained to hear the differences that higher end fuses and(some) PCs make. I've been listening to live music, sound reinforcement and home audio systems in a professional capacity for decades, and if I hear a difference(good or bad); IT EXISTS(placebo effect be damned).

Mr Z- Yes, the effect has been verified, more than once and with different listeners(uncoached). Even some half-deaf musician friends noticed the more(what I term), "organic" presentation with the HiFi-Tuning fuses(gold ones), as opposed to Bussman or Littelfuse. BTW: The paralleled capacitor and diode pictured on their fuse is simply their logo, and has NOTHING to do with the fuse's internals(silly notion).

Perhaps a bit of reading would have eliminated your confusion? Note that HiFi-Tuning's literature mentions their fuses having a, "burn wire"(like any other miniature fuse) and nothing else, outside of endcaps and a body. Further- that the company "logo"(NOT, "schematic") indicates the fuse's directionality:(http://www.ultrasystem.com/usfeaturedprodsFUSE_LIT.html) BTW: I can't speak to whether the fact that I'm using them in tubed monoblocks(two fuses each), with dedicated AC, FRED rectifiers and upgraded PCs, makes a major difference or not. But I suspect that it does. Those changes were made incrementally, and time given between each, so any differences could be noted independent of the prior. Happy listening!

Just for the record: The first HiFi-Tuning fuses that I changed were ONLY the AC mains for my Cary tubed monoblocks. The positive impact that they made there, convinced me to purchase the others that now reside in my system. It seems that few understand that the power amp's power supply is actually directly coupled to the speaker, through it's output device(s), and thus IN the signal path. That's the reason even minor upgrades/tweaks in that part of an amp's circuitry can yield audible improvements.