Sound Quality of red book CDs vs.streaming

The Sony HAP-Z1ES doesn't do Tidal, so I have a separate unit just for Tidal. CD's were way better than streaming, for me. I tried analog and digital connection methods and couldn't get it close. Now, Hi Res is a different story...

In the chain below, Tidal 16/44 sounds better than Redbook, MQA sounds much better (afraid I might become an MQA junkie), and I can't hear a difference between FLAC and Tidal streaming.  I have to go back and try WAV.  My disc spinning has nearly stopped as a result.

Also intend to try better ethernet cable, based on what I've read here on the 'Gon, currently have cheapo, want to try Supra.  For what it's worth, I think PS Audio believes transmission via ethernet to be superior to toslink, upc, can't remember why tho.  

Oppo 105D via AQ toslink or Tidal/Roon from modem via ethernet -> PS Audio Perfect Wave DAC with Bridge II.

I find cd is better than hard drive AND streaming through my MSB Transport and DAC. 

If using Roon or Android Hi-Fi Cast (most any app/software except Google’s own), the jitter in the ChromeCast Audio is better than -275dBFS (better than 45Bit). @audioengr’s re-clocker will actually introduce more jitter in this case. It’s only if you Cast with YouTube or your Chrome Browser will the re-clocker actually reduce the jitter; however, any good DAC will be audibly the same for cheaper, $700 for a re-clocker is silly when a $250 SMSL SU-8  DAC has jitter below -120dBFS, what is considered out hearing range (some say 140dB), and accounting for room noise, it’s more than enough.