@andrei_nz , uh, I literally said that my speakers are Cabasse Riga on the first line of my post. Understandable though, when I went to the dealers and I mentioned about my speakers most did just go "ummm, what are those?" until I explained that it's a pair of high-end spherical coaxial satellites.
As I mentioned earlier, they are very easy to drive therefore I feel safe to limit my option to only Class As.
Plinius is definitely on my short list. For Perreaux, only 80i is available to purchase in my city.