Comparison of $11,000 - $15,000 reference speakers

Looking for some feedback on speakers in the $11,000-$15,000 range used (pre-listen seems like an appropriate term if selling with a mercedes). The current rig consists of the Aero Capitole MKll CD Player, Jeff Rowland 302 Amp, JR Synergy11i Pre and N802's. My short list of speaker upgrades are:
N800's (non-diamond)
Sonus Faber Amati's
Kharma CRM-3.2's
or if willining to spend a couple extra $$
Talon Firebirds
Has anyone spent any time listening to and or comparing these models?
How about recommendations on synery with my existing equiptment?
Thanks