With two DAC's in place, a chip and an R2R, the A/B between is somewhat shocking. Remasters from Qobuz through Roon sound tuned for the chip DAC and when played through the R2R, the horror!
I keep the R2R in NOS mode and what is heard when 44.1 comes through is far more pleasing. My selections are now curated to the original 44.1 when I have the choice and wish the selection was available between the two when adding albums to my library.