Yikes! Your system is almost certainly a lot more resolving than mine, so without the benefit of spending a few hours (days?) in your listening room, I can't really advise you further.
It might be interesting to connect a small device like the Raspberry Pi 3 Model B directly to your DAC via USB (possibly with an iFi micro iUSB3.0 inserted between the Pi and the DAC). As I have described, I'd run Roon Bridge on the Pi and Roon Server on a different PC. Have Roon Server perform the convolution using Acourate filters and route the stream to the Pi running Roon Bridge. I've written a blog post that describes the setup. Here's a link: