You’re making baseless claims. Our fuses are rated to blow on the safe side of industry standards. We sell over 10,000 fuses annually with a money-back guarantee—that’s $5 million plus worth of fuses every year. Almost no one sends them back, but when they do—even if they specify the wrong value or choose a fast-blow fuse when they needed a slow-blow fuse— or in the off chance they do not complement their system, they get a full refund, no questions asked. If our fuse’s specifications are not right for your system, you get your money back.
To my knowledge, we’re the only audio fuse company that offers a no-risk, 30-day money-back guarantee. That you doubt our fuses? Well, I’d love to see your system—I think I have a very good idea of what it might look like. Have a nice weekend!
10,000 fuses annually —where I come from, that’s $3,000 of fuses every year.
The only audiophile fuse I actually bought on purpose was one of yours, it was a black one on a half price sale so I thought, what the hell. It was 3.15A and I put it in my Innuos streamer that draws about 15w which is less than 0.1A. I didn't hear any difference and I think I may have left it in the machine when I upgraded it.
I know from the Littelfuse data sheet that their 3.15A cartridge fuse has a cold resistance of 0.0283 ohms and at full current will drop by 0.14 volts, which is nothing because the voltage supply could vary by over 20 volts from the 240v standard.
They do a standard version which costs about $0.70, but an audio/medical version that costs about $10. The difference is that the latter has gold or rhodium plated brass caps, as opposed to the usual tin alloy, and is ceramic so won't leave a mess of glass if it blows.
Perhaps you can explain, without using any acronyms or buzzwords, what the technical objectives you seek to achieve when re-engineering a fuse. I mean, at some point someone must have sat down at a bench, thought that a standard fuse has some sort of weakness, and objectively sought to remedy it. I just have no idea what the weakness of a regular fuse is.
From personal experience, I feel much the same about power cables, and am more interested in the mechanical issues. Likewise, the plating of end-caps to improve the mechanical contact is very common, here in the UK MCRU, Russ Andrews and others do this and sell them for as little as $8.