I demo Magico Q3 with the Constellation Centaur, EAR 868 pre, top of the line MSB and Kubala Elation cables at a dealer. It sounds fantastic and much much better than the all Spectral system. I was getting a headache after 30 minutes with the Spectrals and had to leave.
This dealer also has Hegel H30 but I was speaker shopping so didn't demo.
It's probably save to say you can't go wrong either way. GL!