I've heard the Aurender N200 with a Denafrips Terminator Plus R2R DAC, and an N10 with a Chord Hugo in other people's systems. I also have had the N10 and N200 in my system with a Denafrips Pontus II DAC. I must admit that to my ears, R2R DACs are my preference.
I did not enjoy the N10 with the Chord DAC, too bright and sibilant for me.....though I could see it being a good pairing in a "dark" system. I have found the same with other Chord DACs.
The N200 with a Denafrips Terminator Plus was absolutely brilliant, more detailed and revealing; but with all of that Denafrips R2R magic.....fun, dynamic, engaging, involving, enjoyable. I could live with that pairing without hesitation. The new Denafrips Terminator 15th at $6,100 is basically a Terminator Plus, and would probably be a good comparison as well.
In my system I really could not tell much difference between the N10 and the N200, both were wonderful with the Pontus II.....but nowhere as nice as the N200 & Terminator Plus combo my friend has. I did not have the Denafrips Iris DDC at the time, so I cannot comment on how that would've changed the demo if any.