Think ill just go with a lumin

I would also recommend going with the T2 over the D2 if it is within your budget. There is a very large improvement in sound quality, unless the specific character of the D2 is more to your personal liking.

Lumin has an outstanding software stack and wide range of compatibility which makes it easier and more pleasing to use than many other choices. Plus they their build and sound quality is top-notch, and they have a high level of customer support and regular firmware updates to improve things.

Most R2R DACs tend to lean towards a particular flavor of sound, so unless you've heard one yourself and decided you liked it, I wouldn't necessarily recommend it.

You go now highpeakrider 

$400 iFI Zen more musical than a Lumin D2. 

Easy to believe

yes sure it is

we have the ifi dsd pro and the lumins sound better

I use my T2 with an integrated amp. The T2 does give you the ability to run direct into an amplifier. The dac in the unit is very good. LUMIN website instructions on the device set up are clear and very easy to use. I have my LUMIN volume control set to 100% so I can use the remote volume control for my integrated

I feel your pain weeding through all this, but I don’t think doing the combo thing is a good idea longer term as both streamer and DAC technologies evolve at the pace they are.  I’d suggest going with a good streamer like the Pro-Ject Streambox S2 Ultra and a nice DAC such as the Musician Pegasus R2R DAC (just as one option) and I think you’ll be very happy for $2k all in with no more headaches necessary.  I own the Pegasus and consider it to be an upgrade from the more common delta-sigma DACs in terms of flow and musicality with no lack of detail or dynamics.  Here’s a review I think is pretty spot on FYI.

https://soundnews.net/sources/dacs/musician-audio-pegasus-r2r-dac-review/

Hope this helps, and best of luck.