Part 2: If it were me and you're sold on Focal, I would do a Sopra 2 over any of the Kantas. Better speaker.
Looking at Focal
I'm looking to replace my B&W 803s for the Focal Kanta 3. It's hard for me to travel so can't go listen. What differences could I expect I have an upgraded Carver TFM 45 & a 1070 Rotel pre.