+ 1 for Lumin....I own the A1 with upgraded power supply....bought a D2 for a second system. The A1 has a reputation for being one of the most "analog" sounding streamers out there. The app is extremely easy to run, very intuitive. I also run thru the new etherRegen switch and it is very good. Investing in high end ethernet cables pays great dividends as well. Supra CAT8 are extremely good for the money. Best I've found is the SOtM dcbl Cat 7.....very highly regarded and recommended.
Enjoy
Enjoy