As I use UX-3 SE I´d highly recommend looking at Ayre or Nagra gear as synergy is very good. Depending on your personal taste you can fine tune its sound by using either Shunyata, Electraglide or Virtual Dynamics power cords.
My speakers are Ayon Falcon S latest modell, modded Ayre K-5xe + V-5xe as well as Nagra PL-L. Former cdp were DV-50 S (modded) and Audio Aero Capitole MK II SE.