Difference between Bluesound Node 2i and Cambridge CXN v2


Looking at both of these units and I know there is a $500 difference but can anyone tell me the differences between them and which might be better? It seems as the CXN uses dual DACS and has balanced outs. It might actually sound better but any help would be appreciated.
128x128audiosaurusrex
iTunes ( my Windows computer) rips my CD’s  directly to my NAS Ethernet drives. All my music servers play it from the NAS drive over Ethernet. I use a dedicated Roon Rock server for my Roon to PS Audio DAC endpoint. Use Tidal either directly to CA servers or along Qobuz via Roon to PS Audio. Use Airplay for Qobuz to CA servers.
Find a used Ayre Codex Dac. It outperforms the Dac in my Cambridge 851C cd player.
From above post on 6/2 by adg101:
 If you decide on the CXN, spend a little extra to upgrade the power cord.

I'm bit of a newbie to audiophile gear, tho I've had NAD equipment for 20 years.  I just got a Node 2i and was surfing and seeing comments about SQ improvements achieved with after-market power cables - well, being a bit of a skeptic I found this a bit hard to swallow - who can clarify this power cable business for me?
Thanks/Bill
Post removed 
wgosma,
So I did not think that power cords cord make a difference but I took a chance and upgraded to a power cord for my Krell Integrated Amp and my Cd Transport and have heard a remarkable difference in the sound.  Gonna do my Phono stage as well.
Worth trying out!!