Can a Bluesound Node 2i power supply really be upgraded?

i haven’t bit the bullet and gone w roon yet but of all the streaming softwares i have tried (and have tried about a half dozen) i like blu os the best... it is not perfect but it is very good, though you need to do updates reasonably often... it is a quick and painless procedure

on a separate note, i would imagine @dinov got the improvement on the node with the polish ps mod + lps primarily in the dac section... 

Are there better streamers than the BS Node? Certainly. However I find for value,I’m all in with them. I actually run 3 Nodes. A N1,2,and 2i. I find my systems very pleasing to my ears. But certainly not the final word. I’ve upgraded cables on the 2,and 2i,and also run these through external DACs. The N1 I use in a little system in my breezeway. I’m using the internal DAC on that one. It is adequate.

I would love to hear a BS product with an upgraded power supply. I’m not an electronic diy kind of guy,and I would be afraid of blowing something up. So I stick with what I know,switching cables. Remember what Clint Eastwood said; “ Every man must know his limitations.”

@rocray The Teddy Pedro PS upgrade looks really nice but I just can’t justify spending anymore (much less $500) on tweaking my Node2i. I have a Cat8, Cullen power cord and a Cardas lightning 15 digi coax to a external Dac (ARC 7) and while I’m pretty happy with it, I’m still hunting for a streamer that fills the gap between the BS Node and Lumin Mini.

So,  a little late on this input, but here it is.
I went to https://pd-cf.com/produkt/bluesound-node-2-2i-upgrade-low-noise-psu-interface/, which is the PD Creative website in Poland. I am an Aerospace engineer myself, so I asked a number of questions before buying the PS replacement. 
I ordered the upgrade kit without power supply and installed it in my personal Node 2i. I used a 5volt  Sbooster's BOTW LPS that I already owned to power it.
I have to say I was able to hear an immediate improvement in noise level and clarity.
This was a worthwhile investment for me. YMMV.

Agreed.  The Polish LPS upgrade makes it better.   Very good value for money.   Next is maybe a better DAC.