Double Upsampling? Roon DSP ---> Upsampling DAC


New to ROON and am enjoying it immensely. Had a question about upsampling. I have a Cambridge Audio 851n streamer that automatically upsamples all inputs to 384/24. It cannot be turned off. It has three filters: Steep, Minimum, and Linear. I love Minimum for nearly every application.

My ears tell me that when I use DSP’s upsampling that “Smooth Minimum” sounds best with the 851n’s Minimum setting. But am I being daft “doubling” the filters? Or should I use a different combo between ROON and the 851n for best sound?