@audphile1 is the power cable on RG of equal or better quality than the power cables on your source and preamp?
Interesting question. Similar quality, not one too much greater than the other. This is another reason I may step up and try a potentially better PC for source or preamp, or at least a demo/test down the road. I don't have 5 dedicated outlets in my current room, and chose the path of RG for now, instead. Works pretty good.