I have the Node 2i. Mostly listen with the RCA output going into a Marantz PM-10 amp. I also have it connected to a Marantz SA-10 by a digital coax cable. The sound is pretty similar. The SA-10 DAC does seem to have a bit more detail and space.
I listen a lot to Radio Paradise, which uses MQA encoding. Probably losing that going through the SA-10. So your results might be different, depending on the details.