“I previously moved from the internal DAC 2 of my McIntosh MA12000 to a Holo May DC KTE and this was even a greater improvement than the streamer change.
+1, @vonhelmholtz
In your current setup, your weakest link is Digital to Analog Converter (DAC) in C52. You won’t realize the full potential of Aurender N10 or N200 unless you switch to a better DAC. I would first invest in a better DAC before upgrading the streamer. Secondly, use a high quality COAX cable from Node to a DAC (SPDIF).
I would only consider upgrading the power supply in Node as suggested by @pedroeb if you plan on keeping the Node otherwise you’re better off moving to better streamer like Aurender N200 or N10 once you have upgraded the DAC.