what speaker new or used for 5k?

Maybe listen to noise levels on a portable radio at various locations close and further away from your gear and see if anything detectable there. Older digital sources in particular and any multipurpose computer gear not designed for good sound specifically can be common nearby sources of noise and distortion. Also any power consuming household applicances with power transformers, microwaves, flourescent lights, etc.

There can be a lot of noise pollution in ones home both in teh air and on electrical lines that one never detects until it si gone and their hifi sounds so much better.

speakers are setup 4ft from front wall and 50 1/2 inches from side wall, this is the correct setup for the room dimensions except from the front wall, but I cannot have them any farther out in the room because this serves as a family room as well. HT, gaming. the Mosaic cables are very neutral sounding and expensive, this is not where the problem is. the cables improved the sound tremendously, but the VA's still sound congested. I have also tried ZENTARA reference cables and power cords with the same effect.

Stereo equipment is wired to its own circuit and I have a monster power surge and line enhancer, not sure what model off hand but it ran about 500 bucks.

"05-20-15: Jughead
What companies do in home trial for class d amps? I'm fine with trying it as long as I can return it if it doesn't meet my standards."

The Cable Company has class d amps that they lend out for demo.

My local stereo store recommends that I try Musical Design amp and pre which I can take home and try.