Digital improvements possible?

Thanks for feedback so far, guys!
Erik- I have Vandy 2ceSig 2s and have tried to discern a difference between battery and AC from the wall with my Mac. I have a dedicated power line and Porter Port outlets and can’t tell a difference. Thanks for info on the Stockholm too!

MZ- I’ve wondered about that. There seems to be a lot of hype about hi-Rez, but I’ve not compared it with regular CD quality personally. I do believe Tidal is just as good as CD downloads I’ve done in iTunes. I’ve A/B’d tracks head to head and could tell no difference. I can seem to discern better quality on MQA albums on Tidal versus the same non-master album on Tidal, however. And I have some room treatments for first reflecting points on side walls and behind the speakers. 

I know now some people run JRiver, Roon, etc... is there an advantage sonically?
Since I stream Tidal via WiFi it seems to really slow things down for me. Do I need to upgrade my internet speed?
Any other tips are most welcome. 
Thanks again. 

Tidal doesn't really take that much bandwidth in modern terms, but if you are relying on Wifi, and are in a congested area (apartment bldg) that is more likely to be a problem.

Improving the front end of my system has been on my radar too. I run a reasonably quiet gaming pc > Live Dirac>sotm tx-usbexp>W4S RUR>DAC-2>LM508IA>Tekton DI's

A filtered outlet and usb card cleaned things up well. Live Dirac has always been the game changer in my system. The focus, imaging and detail is amazing, with amps retaining their unique characteristics.
You've got to choose between Live Dirac and MQA as the RC digital filter puts the kibosh on the MQA decoding. 

I was able to run a free trial. Be prepared to spend the money as you may not want to be without it once you've drank the "kool-aid"

Did I miss it, or did the OP mention his amplification?  There is a lot more to sound than just mentioning the source.

@lincnabby  
 
MQA is lossy, it competes with MP3, impossible to be better than CD or higher.  People who boast about 96kHz or 192kHz have no clue what it even means. Firstly, we can’t hear that high. Secondly, most systems can’t even reproduce audio that high (wether it be the DAC, pre-amp, amp, and/or speakers).