Fuses

And how do you connect the fuse wire to the end cap? Make your own?

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You can not evaluate sound quality this way as your own internal biases can affect the outcome even when you are sure they can’t. In short, you can remember what you heard but you can’t remember what you heard sounded like even if you attempt to characterize it. It is impossible, none of us can because out brains are not wired to do this. People are dead certain there heard a difference which births the mythology and an industry base on psychological deception.

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Not only can I remember, I can remember over years and years. I just contacted a buddy of mine I hadn’t spoke to in 35 years. He new exactly who I was and I knew his voice and the change in his voice from wearing dentures as well.. How’s that for being able to remember sound. People who are trained in the art of listening have to remember sounds and how to identify sound when there is all kinds of other noises also.. You have to listen through the noise to get to the sound grasshopper..

Regards

Breaking news ... oldhvymec is to feature in the latest DC comics movie as ‘ Audio Man ‘ he has the ability to hear through time ... he can even identify that Queen Elizabeth the 1st wore wooden dentures

well technically not my own, like from scratch.
Aucharm fuses from China are 2 dollars a pop. I use them for my amp... The easiest thing to do is buy double than what you need, break half of them, and save the end caps.
Take the other half, and carefully use wire strippers or another cutting instrument and remove the caps off the end. They are not very thick...
Ditch the cut caps, fill the cylinder with the sio2/oil mixture, a syringe works best.
 Let cap on one side dry and harden before filling with oil, and sealing the other cap.

The aucharm fuses have snap holders on each end, so the wire is not soldered, the caps press down on these inserts and make a connection with the fuse wire.

The wire on these fuses is a Silver Alloy, and sounds fantastic. Caps are pure copper, Gold plated.

For my DAC I bought a Gustard fuse (5x20) from aliexpress, and after the oil treatment, it sounds better than an SR Orange/ All the Hifi Supremes, and on par with Audiomagic wax fuses.

I think materials definitely play a part in the sound fuses impart on playback, but the biggest change comes from thermal management, and filament dampening.
The SIO2/Mineral oil mixture provides both .

It’s worth a try, you might be surprised how well it works.

Also if you have a HiFi Supreme copper fuse, you can drill a small hole into one of the end caps, and fill it with the oil mix as well, and solder the end cap to seal it.
The Supreme copper, has zero dampening inside the fuse, unlike the Supreme SilverGold. Copper is just a bare  wire soldered on both ends, the tube is empty. SilverGold has a plastic tube around the filament. 
I found this out the hard way, sometimes you have to tear open things to find out how they work....chalk it up to experience.

Whatever you do, do not ever trust your own ears. Your ears and your brain are liars. Our auditory memory is so horribly awful that no one can ever remember how music sounds. I honestly don’t understand how professional musicians can play or sing the same songs perfectly from memory every single time. It must be voodoo.