Ciro71,
Since you posted here, you should have already very well guessed what the unanimous recommendation would be? ;)
Anyway, in a room your size, I'd imagine that the Contriva would be a perfect fit. My room is similar in size, about 60m2 (approx.5m x 12m), and it gets filled-up pretty nice and easy.
Amongst your list of speakers, it really boils down to your set of preference--tastes and biases, but in the transparency dept. (yes, esp.mid to high), I would rank the Tidal CD to be at/near the top of that list.
And as to synergy with Vitus gears, hearsay that that's another winning combination as well. Maybe our friend Maxx1973 can chime in more on that.
Goodluck