I have 2 dedicated 20 amp lines for my system. There are 2 sets of duplex outlets per box. I was using Hubble hospital grade outlets I had bought from a local electrical supply store and thought everything was good. On a whim, I bought 4 Shunyata duplex outlets and I was amazed at the difference. The entire system sounded clearer. I was so impressed, I went with all Shunyata power cords, a Hydra and Guardian power conditioner. It was the finishing pieces to a great sounding system. Money well spent.
Bob
Bob