Yeah, the ESS SABRE DAC in your Rose is doing you no favors whatsoever. Sounds like a good R2R DAC is in your future. Here’s a nice example and would be a huge upgrade in what you’re looking for…
https://www.usaudiomart.com/details/650001299-denafrips-terminator-ii-12th-dac/
Here a review that might be helpful in discerning its sound characteristics in case it might be helpful…
http://www.stevehuffphoto.com/2022/01/05/the-denafrips-terminator-ii-dac-review/
Best of luck in your search.