Rthomer, I am using a Shunyata Diamondback PC with my Prologue Two. Power Cords, in my experience have yielded greater results in my system than those of speaker cables & interconnects. I'd recommend starting with upgrading the stock PC on the unit.
Running a dedicated line, terminated with a high-quality outlet is also a very worthwhile 'tweak' that yields great results! (especially for the small cost)
Running a dedicated line, terminated with a high-quality outlet is also a very worthwhile 'tweak' that yields great results! (especially for the small cost)