For starters , get a dedicated 20 amp circuit,
then a 4 wire dual ground ,1 a common ground,
the other a dedicated ,isolated ground . This is what my Audiophile
friend,Electrician did for my room ,a major difference in lower noise
floor ,this past summer I took it two steps further
He special ordered 30 amp silver plated copper breakers
and Awg 10 Copper Wiring this way No problems with oxidation at the breaker , even less resistance vs awg 12.
extreme maybe but very effective.
