Hi
hello, I’m just new here 
I use a Marantz KI Ruby as USB-Dac and tried so far different settings in DSD and PCM from a dedicated windows computer.
I play mostly CD-Flac ripps and some hi-res FLAC and native DSD with great results so far.
Actually either upsampled to DSD or native resolution (then upsampled in the DAC to DSD, which is a Marantz feature, they upsample everything to DSD for playback).
The audio driver in Audirvana allows a lot of settings in the audio driver, so I wanted to ask if anyone has allready experimented with the settings?