SACD vs. 24/192 stream

@audphile1  I was not using the same cable. I was using an HDMI cable from my disc player to the D.BOB and a DH Labs coax cable from the D.BOB to the DAC.  So I would think the USB cable added an advantage for the streaming over the disc playback. 

My DAC only takes one coax cable and one USB cable, so there would not be much practical value to connecting both sources with the same type of cable.  Currently, my Hermes DDC is malfunctioning, so that wasn't even advantaging the SACD playback (I used to have the DDC connected via I2S cable to my DAC, just for the disc player.).

Your remark about the ethernet filter is interesting.  I did disconnect a MUON ethernet filter when I was having trouble with the Mk3, and haven't returned it back to the system.  I also have an inexpensive medical-grade ethernet surge filter I disconnected.  Do you think that would have a negative effect on sound quality?  We don't have electrical storms often where I live, just the occasional power outage due to wind, so I'm not greatly concerned about the surge protection. I could just turn off the streamer during periods of extra high wind speeds.

The DBob is a fantastic component used with a transport.  Improves any SACD.

I used to own N/A Eno streaming system. I ended up selling it as it negatively impacted the sound quality. It mellowed everything down and killed the dynamics. 
Never tried Muon but with your innuos zenith mk3 using any filter may not be necessary. They take care of isolating network garbage internally in the innuos. I’d try with and without. Ultimately only you can be the judge.

I use best possible Ethernet cables I can afford (yes they absolutely 100% matter) and no filter. I even removed iFi LAN iSilencer. Not necessary. I do have a switch (cheap trendnet 8 port 1g) between eero and streamer as I split the signal to go to streamer and roon nucleus. Again - no filters. 
 

Back to cables - please try DH Labs AES from innuous to dac. Do an apples to apples comparison. Eliminate the guesswork. Type of cable matters but quality natters more. Let us know. 
 

my network set up

eero 6e pro into trendnet switch using wireworld starlight 10 twinax Ethernet cables, then another starlight 10 into roon nucleus, and from switch to my Meitner MA3i streaming card I use Audience Hidden Treasure Ethernet cable. All network components are powered off a separate circuit. My system - dac, amp, phono, table are in two dedicated lines

SACDs can sound amazing, but so can 44.1 kHz CD.  As noted earlier, much depends on the mastering.  Is the 192/24 stream you're listening to the same as the one on the SACD?  Probably not.  Playing a 44.1 kHz CD in a good transport / DAC can sound amazing given the right source material and the quality of the playback chain and room.  Having said that, most of the SACDs I own sound incredible and if I had to choose over streaming, I would.

A direct A/B comparison of the (apparently) same recording on SACD using Marantz KI-Ruby player/DAC to Quboz hi-rez streaming using an Eversolo DMP-A10 streamer/DAC with identicale Cardas Clear RCA IC's from both players into integrated amp inputs (and leaving cables alone for a long time) - has revealed that on most albums the SACD has slightly more texture/detail in the sound (I use the CD if I own it). PS Audio has some wonderful quality recordings on SACD that really highlight a system.  However, SACD availability is limited and expensive for a small SQ difference - streaming 90+% of music and enjoy it!