10 gauge wire to a 20 amp breaker. Be awear that 10 gauge is a bit harder to attach to the AC outlet, but it can be done for sure.
I don't know that the brand of cable will matter.
Some audio websites sell cryogenitacilly treated copper wire if you care to spend the additional money.
I don't know that the brand of cable will matter.
Some audio websites sell cryogenitacilly treated copper wire if you care to spend the additional money.