In audiophile speak, sliver sound bright and copper sounds warmer.
Why?
Well because these bloody clever materials know they should sound like their skin.
In other words, the profound differences in sound are total nonsense.
Just another case of self-delusion.
There is a real difference, silver is a slightly better conductor than copper.
It is also more prone to oxidize.
https://sciencing.com/copper-vs-silver-wire-conductivity-5863373.html
It's not entirely true, is rather after hardness, which points more towards a kind of resonance.
Will describe it this way, make some small bells of gold silver copper and lead , the basic tone, the tendency of the sound will be as if you rang with these bells.
In the same way that most people know it from speaker membranes, the material has a sound signature .
Electrically there is nothing that fits together, but it fits with what many millions around the world are experiencing, manufacturers, Hifi enthusiasts and Diy people.
Yes I mean it seriously. Insulation materials also have different sound signature .
So electrical components may sound different even if they perform the same electrical function.
Can not explain it and not measure it, But I have a desire to be able to , But at the moment it is only a listening experience