Sonus Faber Olympia III Nova 5

Hello,

I am looking for advice from anyone that has heard the Sonus Faber Nova 5's.  My current system runs a Macintosh 312 Amp and Macintosh C49 preamp.  I have a Mac power cleaner as well.  I am looking at adding an Aurender music server in the near future.  My current floor speakers are Sonus Faber Olympia III.  I really like my current speakers but was thinking of upgrading to B&W 800 D3's because I have been mesmerized by their sound in showrooms.  I got to speak with a vendor I trust and he guided me towards the Nova 5's.  The Nova's reviews are good but there aren't a lot of them.  Before you respond by saying go listen to them and it depends on personal taste, I live in Nashville and the nearest showroom is 5 hours away.  I am going to go listen to them but before committing to the trip...has anyone heard both or have other recommendations? I am big into used equipment simply because on a middle-class salary it makes better sense to me.  Any advice or suggestions would be greatly appreciated my friends.  Sidenote..I am more interested in feedback on the speakers but the vendor is also suggesting a Pass Labs amp instead of my Mac.  What do you think?