And IMO a good portion of the musics dynamics
Yeah, I'm pretty certain that the mat/isolation stuff on my table really tightened the focus and imagery on my table. I dunno how to explain it. But when you say the "musics (sic) dynamics," are you inferring that the dynamic range, or the variation between quiet and loud passages in the music, is somehow reduced?
Cuz I have this awesome 1980 Telarc pressing of the 1812 Overture that plays much better (tighter, less slop, etc...) during the piece's climactic passages when I use the mat and clamp.
It's actually a pretty cool recording. you can actually see the grooves spread way out for those cannon shots. There's so much room for those cannon shots that the vinyl looks more like the blank lead-in at the start of an album than the groove in the middle of a piece. But the thing is, there is so much in the way of dynamics there that I can't listen to the piece very loud. It's fun just to watch the woofers jump as they try to keep up with the blasts.
So, in that sense of dynamics being the range of loud to soft, I'm pretty confident that I'm not losing any of that. In terms of imagery and focus, I listen to my vinyl in stereo (I don't engage the other three channels in the system when I listen to vinyl - just the four channels I use to drive the main left and rights), but I keep getting up just to check that nothing's coming out of the center speaker. And there's great depth to the imagery, too. Ringo's drum kit, for instance, on my MoFi pressing of Abbey Road is behind Paul, John, and George.
And I know my cart is not that great. Good, but not the best. And while we haven't operationally defined what you meant by dynamics, I'm gonna assume you meant dynamic range as I've defined above. But going on what I've heard both with and without these tweaks, I'm gonna have to respectfully disagree with your presumption that a system you've never heard is losing dynamics because it's dampening out unwanted vibration.