Thanks for posting your system and suggesting music that you enjoyed.
I haven’t thought to look for DSD recordings. I have a few from Octave records, but have never A/B FLAC vs DSD64. Do you hear a difference between DSD64 vs FLAC 24bit/192kHz when listening from the same source? I mention this because I’ve noticed that a well recorded piece is the basis of everything that comes after. I can hear the difference between CD quality and higher bit/frequency renditions, but mainly when it is a great recording in the first place.