PSB Synchrony vs. Sonus Faber Cremona M


I haven't heard either of these but both are possibilities for an upgrade (will they be?) from current Infinity Renaissance 80. Assuming either can be had for somewhat over $4k which would be recommended? I'd like better soundstage depth and layering, as well as superior imaging. Low end extension is also important as I listen to a wide variety of music, mostly jazz, classical, choral, but also reggae, R&B, etc.

Amplification is Hafler 9500, Conrad Johnson PF-2. Source is Squeezebox Touch (fed from dedicated NAS) feeding PS Audio DL3 DAC. Wireworld Polaris cabling/interconnect.

Room is 10' W X 25' L X 10' H but I cannot sit more than 8 ft or so from speakers which fire along the long dimension of the room. There's a lot of open space behind the listening chair.

If anyone has firsthand experience with both of these (even better with also the Renaissance 80!) please comment.

Thanks
partialresponse
I omitted the fact that it's the PSB Synchrony One floorstanding speaker to which I'm referring.
Partial ... do you know whether PSB is using beryllium dome tweeters now. If PSB does ... it will be joining the ranks of Magico, Focal and Paradigm.

Sorry I can't respond other than to say that beryllium tweeters are very special. If PSB is using them in the Synchrony Ones, they are worth a serious listen.
No, Bifwynne, I don't know whether the Synchrony One uses a Be tweeter.

I'm surprised no one has offers any comments on this comparison. Both of these speakers have individually received quite a bit of discourse here, but I suppose owing to the fact that the Cremona M lists for over twice that of the Synchrony One the comparison isn't one that would readily be made. But surely, someone must have had firsthand experience with both of these speakers, no?