Looks like a well-rounded system. Pretty evenly balanced, perhaps leaning towards the "clean and tight" side? While I'm not familiar with the Sim Audio preamp, you might try out a tube preamp for your music/2ch side of the system. I have found tube preamps to add some richness to timbres and air around the instruments. Perhaps a BAT VK series preamp or even warmer, something like the Conrad Johnson 16LS....
Kind of hard to point to any weak link in your rig as far as I can see. Good job, and enjoy!
