Thanks guys! I have DYI power cords on all my two channel equipment. I used Oyaide Tunami V2 for the cable. Not the best but far from the stock wire. So my power wires are not bad, just not up to reference level, if that is needed.
As to speaker placement, trust me, I'm been playing with the placement for a year. I've got them where they sound pretty good. I did pull them out another foot from the wall today. It did help give more dimensionality to the sound.
I have an 80" TV in the middle of my sound stage so I tossed a thick blanket over it and it helped. My center channel KEF Reference has a large aluminum face so I tossed a blanket over that next. Helped a tiny bit more. I think I'm on the right path! 😂 Total spend for improvements today- ZERO.