Does anyone have a digital system that is as involving as their analogue front end?

I have the bssic iFi lan isolator for $85 or whatever it costs. In my system it doesn’t do much. I guess my Ethernet cable does a very nice job so I removed it. However, with a 35ft run of basic Ethernet cable it might help. Worth giving it a try but in my opinion only after the break in. You can also try the iFi isolator pro which is similar to Matrix audio but not as feature rich - the iFi uses wall wart power supply bs Natrix inbuilt linear power supply, the iFi won’t reclock the signal as well as the Matrix would. 
Passive filters like Network Acoustics Eno round off the edges too much. I had and sold it. Stack Audio makes a similar device as well. Watch few reviews on Hans’ channel. He covers a lot of network tweaks. 
https://youtube.com/@thehansbeekhuyzenchannel?si=bpEE6uMAKRYWywNh

Personally, my recommendation would be to use a mesh node about 1.5m away from components and get a nice Ethernet cable from mesh to Meitner.Something like DH Labs or Wireworld Starlight 10 Twinax. 
Second option is to run your 35ft cable into something like the Matrix Audio SI-1 and good cable out of Matrix into Meitner. But…definitely worth giving the iFi Pro a try if you can return it. Just get a high quality Ethernet cable out of it into the DAC

@audphile1 

Streamer and DAC separate, but I can’t swap it because it’s an Exakt system. 

In any case, I am in process of repurposing the Roon NUC for a cut down version of Windows so I want to see how that works out. That’s been interrupted by holidays.

The functionality of Roon and jPlay is nice to have, but I am happy enough with the Linn App provided I’m getting the best sound quality.

I am a manufacturer. Besides that I am an audiophile. Everything I design and build is for myself first. It is to satisfy my taste and curiosity. I have Triangle Art signature turntable, Tri Planar 12" tonearm and Dynavector XV-1t cartridge. I guess this is a pretty good vinyl gear. It was again to satisfy my listening taste. 3 years ago I completed a long project which became a product - Audio Mirror WAVE tube DAC. It sounded way better (musicality, analog sounding, resolution, dynamics, soundstage, airy easy floating sound) than any vinyl I listened so far. Of course it's not the DAC only contributing to this sound. It is the streamer and clean network delivering internet. For last 2 tears I played vinyl only a few times only when I had audiophiles at my place who didn't believe me how good/better digital can sound.

This is not intended as advertising. This is my honest opinion as audiophile.

@audio-b-dog

I totally agree with your logic. Buy the iFi LAN iPurifier Pro on Amazon, try it for 30 days and if no tangible benefits, just return it. You have nothing to lose and something to gain. Plus I think iFi makes some great products. I use an iFi AC iPurifier and some of their power supplies. 

Remember that any cable including LAN cables function as antennas and yours at 35ft it is picking up some radio frequencies. Shielded LAN cables help, but don’t eliminate the problem. 

Using the same 30 day Amazon trial logic. I would suggest you also try a TP-Link TL-WR902AC for $30 USD. It can connect to your ATT fiber hub router via Wifi. You connect your streamer or the new Meitner via a very short LAN cable to the TP-Link and you are done. TP-Link details 

To improve it further, you can replace the switching power wall wart for a linear power supply and you will be very happy with the additional improvement. 

The goal is to minimize as much as possible all noise on the connected data network as audiomirror comments above. 

I believe the audio journey is about keeping an open mind and to be willing to make experiments. If the experiments work, you win, if not you try something else. 

Good luck!

@audiomirror @audphile1 

And everybody else. Two things I'm having trouble believing. First, that my 35 feet of decent ethernet cable will affect the sound of my system. I have not done A/B tests, but the ethernet cable plugged directly into the fiber hub sounds better than when I had a meter of Kimber ethernet plugged into a mesh. According to chatgpt, 35 feet of ethernet cable is a short run. People run ethernet cable for hundreds of feet. Plus, when you read the about the MA3i, it does what the isolators mentioned here do. The Meitner's isolation is excellent at garbage and sound isolation.

Second, it sinmply makes no sense to me that whatever interface app. you use on your iPad will make a difference in the sound of the Meitner MA3i or any other DAC/streamer. There is a difference between Qobuz and Tidal because Qobuz sends PCM files and Tidal sends FLAC files. But the interface simply tells the streamer what to play. It does not affect the files themselves.

My bottom line in regards to what changes to make to my stereo: If I cannot tell the difference between the A and B options after leaving the room for a while and coming back, it's not worth the investment.