Sonus Faber Concertino differences

I’m resurrecting this old thread because I have the same question and 12 years have passed since it was last answered.  
 

can anyone comment about the differences between the three versions of the Sonus Faber Ceoncertinos?

the earliest version with the biamp posts, the Concertino Home with the single posts, and the bookshelf Concertino Domus.  What are the differences and is one version more sought after than another?

thanks much!

The Home line was introduced to be a higher volume line than the originals, with distribution through Tweeter, for example. They were designed to be easier to drive than the originals. There are pretty close to the originals in sound, although I like the original ones somewhat better. The Domus line replaced the Home line and it was a new design, after the founder Franco Serblin left the company. They never had the magic of the earlier lines, at least for me. So, in this case, the earlier versions were better than the ones that followed, although the original and Home are very nice. Personally, I would stay away from the Domus line.  That is also why the Domus line is up for sale more often than the earlier ones.  The originals are the most sought after.