Check this out.

Must be superb because has nano-copper. I hope the casing is airtight. Else the copper dust will oxidize and that wouldn’t be good. Assuming the copper dust (aka nano particles) does anything good in the first place.

Wow!

Very interesting... Thanks to the old mechanic man.... 😊

I created a product for my electrical device in my gear and in my house...

I called it "the golden plate"...

I used Shungite plate with copper sheet and Herkimer quartz crystal diamond...

I even used it on my grid of Schumann generators...

it seems Gustard had read my post of some years ago... Shungite is not in their product yet though....But quartz and copper are....

But my device did not work as a connector...i used that to filter the field or the sound...Anyway i dont know why it work exactly but it worked i made near fifty golden plates and put them even on my electrical central panel...

Cost : peanuts...

😁😊😊😊😊😊😊

Nice that someone opened up the mystery box....ie a "premium" fuse, so you can at least see what is in it. I like to see the innards of all gear before buying. "it sounds good or better" alone means nothing. It still may or may not "sound better" or even be a good value.  Or do what fuses are made to do in the first place and self-destruct when needed. It always depends. Just the facts maam...