Which power cords have high resolutions and separation??

With your system John { NASAMAN) Kimber power cords might work. Their pc also  dynamic with the right system.Cable company right place to get them for auditions.

John try Audioquest storm series.. With your NQ45ST HF fluid enhancer they even do what you ask for? I have them, 

The Grover Huffman Pharoah power cable fits your bill and, new, it is in your price range. I just get mine and have been very impressed with the soundstage and instrument separation that it brought to my highly resolving system. I have it plugged into an upgraded wall outlet and also into the back of my Coda Continuum #16 amplifier.

That’s an interesting question. I found that power conditioners and cables provide black noise free background to the music. In doing so, it allows, along with interconnects, your components to be heard. For me, to do this to a high degree required that I spend more money on power than any other one component of my system. I’m guessing that the biggest bang for the money would be a single dedicated circuit and whatever suggestions come via this thread.