Why Streaming Service Sounds ‘Flat’ vs Tune In /Local FM /Radio Paradise

I use a Bluesound Node, first or second gen I believe.

I use the S/PDIF output feeding my Esoteric K-07X CD/DAC using it as a DAC.

I find that CD’s, most things using Tune In, and local FM listening sound better than  streaming either Tidal or Qobuz. 

For the life of me, I can’t figure why that might be, since all are using the K-07X internal DAC. I can understand the CD, as it’s internal, with no S/PDIF cable to possibly muck things up. FWIW, I’m using the Illuminati/Kimber D-60 as my digital cable.

Any thoughts appreciated.