Lumin X1 is in the house. At first,I wasn't sure that I preferred it to the S1, but after 150 hrs, it is pulling ahead. It is hard, as I have only been able to get there on weekends to burn it in. I left it streaming when I left this morning, so looking forward to getting back up there.
Updates will follow, and one of them will be up for sale soon.

I have my own dac so is using Lumin for digital out better than using a Blusound node 2?

Way better. I was using the LUMIN D2 for that. But if you want the best connectivity, get the U1 or U1 Mini.

Or the Auralic Aries G1 or G2.