Kimber cables knows how to design silver cable. I have their digital cable D60, kcag ic, and 8AG speaker cables.they match well with tube gear. Onother favorite is Audioquest dragon speaker cables , diamond ic. They work well with tube and ss.
Pure Silver Wire
If silver is so good to use why do we not see solid silver speaker cables? Price is not that high- 10ga diameter pure silver 6ft is just under $300. That makes a pair of speaker cables about $1,100 for material. I see the price of some of these cables on the market and $1,100 is a fraction of their asking price.