Instead of a power cord, why not am isolation transformer? It's what I did, and it works a treat. I use four of them, in fact.
Plitron makes a good one, but it should go outside the listening room because it growls when working. They are a manufacturer which sells to the public, bless them.
Plitron makes a good one, but it should go outside the listening room because it growls when working. They are a manufacturer which sells to the public, bless them.