Puritan PSM156

Looking for help. I live in US. Bought the 1512. My room uses 15A. Which Ultimate cablr should I get if I want to upgrade stock? Thanks. 

20A US version. 

Before upgrading to the Puritan Premium cable, try 2 Shakti  on-lines on the standard power cable . Very pleased with the improvement in all areas.

I also prefer my amps (which would include active ATC speakers and studio monitors) plugged into my PSM156s (three stereos and one recording studio).

What really stands out for me is the improved quality of my studio recordings.

I have ordered the PSM 156, with a couple of months to save for it. Really looking forward to having it in my system.

Chose the 156 over the 136 as I'll have my amp, DDC, Dac, network switch, and streamer plugged in.

Also looking forward to my amp hum disappearing.