I can’t say how U1 mini compares to ACS100 because I have not compared the two in my system. Both Lumin and Aurender makes great sounding streamers. Are you going to prefer one over the other, hard to say. The only way to know is try Aurender in your system. If you re-read my post, I wasn’t trying to steer you away from Lumin but simply offering an alternative. The ACS100 makes sense for aforementioned reasons which are integral part of my holistic system approach and listening preferences.
If you like to hear Aurender, you’re welcome to stop by next time you’re in Houston.
As far ENO goes, I suggest you read up on following thread.