I’ve tried a few over the years. Some I’ve bought, some I’ve been lent by friends and companies. Admittedly I have tried the most common ones mentioned on here like shunyata or wireworld because I’ve had their other types of their top
of the line cables in house and didn’t like their sound signature nor overall capability.
When I first started years ago I had every audioquest cable in house. The carbon was rather nice tonally and head great texture. Don’t remember the next one up I had but I didn’t like because it didn’t have the texture of weight. The diamond was a carbon but with more capabaility but more sterile.
I also had Clarus crimson in the battle and a few others. I purchased the Clarus crimson. It had wonderful flow, nice copper timbres, all the detail and wonderful organic midrange with height. I have been sent many other cables over the years and have always stuck with the crimson. Only recently has it been dethroned by the stealth double tune. It’s not a huge upgrade but when switching back to the Clarus , it just like every time when you think you found the holy grail and then something else comes along and shows that it can be better.
The stealth definitely uses some aluminum or tin mixed with something else probably some copper and silver. The aluminum I believe is making brass instruments sound unreal. Saxophone, trumpet and harmonica are much closer to realistic timbre and are just ridiculously good. It shows itself slightly in guitar strings but not much which is a good thing. But this natural timbre affect in the highs is nowhere to be seen in the rest of the spectrum. Everything else id wonderful. It’s very transparent with great speed and detail. Those that say usb cables matter the least just simply dont have transparent cables. When the rest of your system is like no cables at all you actually hear your usb and Ethernet cable more than anything so it’s important to get the flavor you want.
FWIW, I did not have the most transparent system when I tried the audioquest. I always keep an open mind about some cables and gear keeping it in the back of mind what they do well. I plan to try audioquest Ethernet soon because I really like the warm strong bass, speed and amazing texture. I think it would be a perfect match with my stealth as long as the Ethernet delivers similar tonal and textural attributes the usb did. But I could be wrong. Maybe I need stealth Ethernet and audioquest usb. That’s the thing about this hobby. It’s a game where you have to play the lottery to get the pieces.