Very good advice from Stan already. I'd just like to add that you should run all circuits from the same leg of your service entrance. This avoids a combination which could yield 240V.
Either run 2 separate (minimum) lines directly from the S.E. panel or install a sub panel beneath your listening area and run lines from there.
Good luck and enjoy.
Either run 2 separate (minimum) lines directly from the S.E. panel or install a sub panel beneath your listening area and run lines from there.
Good luck and enjoy.