@andyhifiman
For your Node 2i, did you happen to do the PSU upgrade(PD Creative) and get an SBooster LPS or other LPS?
I did all that and added an upgraded power cable and all of that made a very big and perceptible sonic upgrade to the "basic" Node 2i.
All that being said, I would assume that a HiFi Rose RS 250 et al would best my upgraded Node 2i as I am using the Burr Brown PCM 1792 DAC in my Classe SSP-800 processor. Which is very good still....
But I do wonder if a quality external DAC like a Benchmark 3B or Holo May would best a streamers internal DAC. But you are increasing your investment.