Magico V2 vs. Sonus Faber Cremona M

I don't know about the Magico, but you can forget about the Primare being able to decently drive the Cremona's. In fact, the Cremona's are much harder to drive than is thought. And no, I'm not talking about the old Cremona's, that are even more a pain in the butt to make them sing. I'm refering to the Cremona M, which I've heard on many amplifiers and it never sounded bad, but it never sounded great either. Until I heard them on a Naim combo NAC252/NAP300/Supercap. That was the first and only time I truely heard them excell in all areas. Forget your Primare. It's not half good enough. I even doubt the rest of your suggested amps have it in them to create magic with the Cremona M.

Jtein, like others have said: as long as you don't make your choice based on what you hear with your Primare gear, you'll be fine. I mean, I take it you want to hear the best out of the speakers before you decide you like them or not. Not much sense if you'd base your opinion on gear that just pushes them halfway...

If you want transparency and holographic-3D, think Avalon, Thiel, Volent, but not Sonus Faber.
The drawback however is that those kind of speakers do reveal more, but they also reveal all the bad parts of a recording. I don't know what kind of music you listen to, but I'd that 50% of my cd's contain a crappy recording/production. With higly revealing speakers it would be impossible to enjoy them.
That is why I love the Cremona M so much. Like Living Voice they are pretty detailed, without becoming overly revealing and transparent. Almost any recording will sound great on them. But where the Living voice is easy to drive, the Cremona's aren't.
Goodluck!

This is all relative and/or subjective. Most of the time it's a few percent improvement for twice or three times the amount spent. It's your choice. ;-)

But in case of planars or stats you have to disregard their looks. ;-) I mean, with Sonus Faber you also have a piece of art in your living room (assuming that's where they'll end up).