If you want audiophile wire, you can buy cryo-treated Romex from Ven Haus Audio. I haven't tried it, but I have tried a cryo'd interconnect and an AC outlet. I like the difference, so the Ven Haus wire might be worth it.
Another good idea is a premium AC outlet, hospital or audio grade. And some people use isolation transformers on their dedicated lines--bigger ones, in the 3 to 5 KVA range.
Ven Haus AC wire
Another good idea is a premium AC outlet, hospital or audio grade. And some people use isolation transformers on their dedicated lines--bigger ones, in the 3 to 5 KVA range.
Ven Haus AC wire