@christianb5s4 This is an older post. I’ve since moved from Kanta 3 (like you I see very little about this fine speaker online) to Atria ii’s. K3s we’re my first high end flop stander (after Harbeth m30.2 with HSU subs) and I enjoyed them while I had them with PS Audio BHK 300 and pre. I enjoyed them very much The Rockports (with D’Agostino Progression integrated) were a significant step up to my ears. Better voice separation and imaging. Although it’s hard to make a direct comparison since I changed electronics at the same time. I would still have the Atria’s had I not decided to go in an entirely different direction with Tannoys and hybrid/tubes.
As between the Magico and Rockport, I found the Rockport more cohesive and musical - less “audiophile” sounding. Hope this helps.