This is a great thread.
It has really helped me listen to and think about the sound. Interesting about the visceral physical part of the experience. I suppose this has to do with focused energy, even at low volume levels. I could imagine when dissipated or conflicted the energy pattern will be heard and felt as weaker. I feel like this part is missing for me.
Ok, I looked at the SR HFT. Small metal pieces with a concave conical shape. I gotta admit that seems a stretch, but of course I haven't experienced them myself.
Over the holidays, Ill be playing with a lot of the ideas above: speaker placement, taming the room, tube dampers, fuse replacement, new isolating feet for the phono preamp. I may even begin to look at the daunting issue of ICs and power cords.