Congratulations on the Bartók. Great looking piece. Enjoy it.
I just bought a second hand Ayre QX-5 Twenty, as a more cost-conscious alternative. I've had it for about three weeks in my office desktop system and very happy so far. I have it set up as an all-in-one Roon endpoint, DAC, and headamp. I listen through Focal Utopia headphones and Genelec 8030C active monitors. Maybe in a few years when I'm ready for another change, there will be Bartók options on the second hand market.
What Headphones cables are you using for your Ayre QX-5 and your Utopia?