Great input, thanks! I got the PowerPlant 12–pretty amazing but I don’t love the fans.
PS just suggested to me that AC cord to PP was most important, so that follows many of your input.
I just swapped a Sunyata Venom cord from my pre to the AC line and the system sound amazing.
For my amp what PC would you recommend in the $100-300 range? I was contemplating trying some Pangea cords on a 30 day trial.