Help me choose a new DAC/Streamer

Lumin U2 or U1X

Matrix Audio NT-1

For streamer only

Then Lumin T3X or Matrix MS-1 with DAC.

If you want to consider those 2 well regarded companies.

Can't add to the streamer question. I would say that there's a great fall off IMHO with streamers on the whole. I've modified a WiiM Pro with external 5v power supply and run fiber router to a Cisco Meraki (p/s removed).

Then fiber to another Cisco Meraki and a short ethernet Blue Jeans ethernet. Also, I have an isolation rig set up for the WiiM Pro which surprisingly made a nice difference. 

Those suggesting a home demo are on point. The streamer market is moving rapidly and some believe the improvement is real but not significant with a 15% differential. 

I mainly deal in very high end, but in your price point, I would not hesitate to recommend an Eversolo DMP-A10. At $4K, it is an exceptional performer, and I prefer it to all Hifi Rose products, and even some other competitor products up to $9K (even ones I offer in my dealership). Oddly, if you were to use it as a standalone streamer, it would not outperform other $3K+ standalone streamers, but when you use the streamer and DAC together as an all-in-one, it sounds pretty darn magical for the price. Perhaps its got improved isolation using it as a combo, but it is really well voiced, can function really well even as a preamp with R2R volume control, and it is overall a very high performance unit. I am an Eversolo dealer, but I have plenty of experience using this model in particular. 

To everyone who took the time to respond with suggestion and brand recommendations, truly appreciate it. Thank You!