New DAC or New Streamer or New Streamer/DAC

I have the T2 and it is really good. Using Roon also, I have never had any issues with the network. It is always ready to go and works great. I have tried it streaming in to the Marantz SA-10 and there is a slight improvement in some areas with that combo over the T2 only, though the T2 is really good at creating a 3-dimensional soundstage.  I have been wondering how the U1 mini might compare against the T2 for streaming only, perhaps someone like @audiotroy can weigh in.

I am with  mtdining (6 posts above) I racked my brain out over this whole music server thing. Tried a few options both inexpensive and pricey. Ended up with a Roon Nucleus feeding my DAC direct via USB. I am not sure why you would need anything else? The Nucleus is a server, with the capability of adding a hard drive containing your own library. And if you don't mind paying for Roon's subscription, you can't get a better music manager.

Thank you all for the input, still collecting thoughts.  As far as Servers and Roon, I am not interested.  I want to be rid of all servers and computers and USB inputs, I like the one box solutions that either have built-in DACs or non-USB digital outs that I can use the DAC of my choice.

A friend is bringing over his Auralic Vega G2 ($6k).  I am curious how it will compare with my Pass D1.  The problem (maybe its not a problem) is that I have not found anything to unseat the D1, and it's 22 years old!  

I just hooked up a Auralic Aries g1 vs my node2i the g1 is pretty darn sweet . I don’t have a dac yet , hooked up to my denon 7200wa / marantz pm11s3 integrated amp at the moment , but working on getting another dedicated dac in the system 

Sorry acurus, but isn't a server and a streamer basically the same thing? A server serves stored music and a streamer streams music over the internet. I only mention Roon (which can stream as well) because it has such a user-friendly interface. It's about as good as it gets except for maybe Sonos.  If you like your existing DAC maybe just get something to feed it.
Also, just curious, what have you got against a USB outputs?