I used to own a PS Audio Directstream DAC MK1 to play streamed music from an Innuos Zenith Mk3: it is a great DAC, but I noticed that over time, I could get some listening fatigue. At one point, my old Micromega CDF1 CD player gave out - I was only using it very sparingly with most of my listening being done through the DSD MK1 DAC. After some shopping around for a new CD player, I was intrigue by the Marantz SACD 30n: it was both a CD player and a DAC accepting USB input, and was doing a DSD conversion (which I found much smoother than PCM when properly implemented) using the Marantz Musical Mastering (MMM) digital-to-analog converter as a lesser version than the one available on their Reference SACD and CD Player SA-10. To this day, I have not found one single PCM implementation that did not cause me listening fatigue (be it DAC chips, R2R, Chord pulse-array). To my surprise, after some serious listening, I found that the Marantz SACD 30n provided me with more details, more natural tones, and warmer/richer medium frequencies than the DSD MK1 DAC, so much so that I sold the DSD MK1 DAC and replaced it permanently with the Marantz 30n.
I warmly recommend the Marantz SACD 30n.
Note: I listen almost exclusively to Sacred Choral chants and listening fatigue can come very quickly if the high frequencies (sibilance) are too present. I am now retired, bought my Marantz 30n back in March 2022 (Capitalsound.ca for CAD$3,800), and do not plan to upgrade my sound system any time soon.