Fuses that matter.

Hifitime, You make some valid points, but I think we need to give people like Jerry at Audio Magic credit for not being complete idiots. I don't know if he has had his fuses retested by UL or not. But I do think when he was designing his fuses he probably didn't just drill a hole in a 5A fuse, fill it with some quaker state 10W30, and start selling them as 5A fuses without ensuring that they blow at the specified current.

However, his customers need to use some common sense too. When I replaced my standard 8A fast blow fuses with the AM liquid filled fuses I bought a 7A fuse instead of an 8. I'm hoping that gives me a little extra insurance that the fuse will blow when (hopefully before) I need it to blow.
I've had about 7 of these fuses in my system since they first came out. They do make a difference, and I think the risk is low enough to be acceptable. For those that think otherwise, there are plenty of non-fluid filled fuses out there. I also have a few SR fuses in my system.

This is all ridiculous. The fuse leaked and the fuse blew. One thing may relate to the other but not necessarily. There is not much engineering in fuses. The filament needs to be sufficiently thin to blow with at the rated current. If it is slow blow there needs to be some heat absorption to allow for surge currents. In some fuses the filament is designed to be exposed to air and in others not.

ULs is a for profit company and, of course, sells its services. Having retesting of fuses would cost money as would certification of an audio component. This is why you don't see these labels on much audio equipment. Designers can roughly calculate what their circuit should draw and try a fuse with just above that value. They then can see if it works. If they blow many fuses, they go to a higher value, unless they find a problem with their circuit. Obviously too high a fuse value may allow overheating of the equipment and the potential for a fire or a safety issue.

Hi Guys,

The liquid I use acts like an insulator and will not dissipate heat like alot
of liquids. This liquid has been tested extensively and my fuses always
blow appox 1 sec sooner than a stock fuse, this I can live with. Mr. "
shamnanjr " should send the fuse back instead of continuing to whine.
good grief!.

Jerry

Thank you Jerry! Still enjoying your Stealth XXX, Al

Personally I find the Synergistic Research fuses the most natural balanced fuses. I have tried 5 of the named brand ones either bought or tried through friends.They literally can take 200 hours to fully open up because of the solid Alloy end caps,type of composite metals ? Not disclosed . As far as direction The owner stated go with writing following the current flow.
Which I have done for years and seems to work out well.