I second the Bluesound approach - excellent app then you can upgrade the DAC. Lumin D2 has a far less friendly app, does not have an antenna, and support from Lumin at least in the USA is non-existent. The access to all the streaming radio stations in the world will be a revelation. Tidal on the internal Bluesound DAC is pretty darn satisfying for all but those who sit in the perfect listening position imitating Jonsey from the Hunt for Red October.
Let me start by saying I don't own a Lumin, so that I'm not perceived as a "fanboy". My TEAC NT-505 can use the Lumin app. I agree that the Lumin app is not that great. The Bluesound app is really good and one of the most compelling reasons to go with Bluesound.
I am using BubbleUpNP instead, which cost all of 5 bucks to get the ad free version. The one thing that BubbleUpNP won't do that the Lumin app will (as far as I know) is stream internet radio stations, including Radio Paradise (which is the best of them IMHO). You can always switch back to the Lumin app to listen to internet radio. I have both on my phone and tablet.
The difference you'll hear between a really good DAC and the very decent DAC in the Bluesound has more to do with the quality of your other components than your listening position. The difference between the sound of my TEAC and the Bluesound was more than subtle.