Kev...Yes I have an opinion.
I think the Franco Serblin Ktemas are beautiful loudspeakers with a typical old Sonus Faber voice and finish. They have a wonderful holographic midrange and go down really low thanks to their 9" internal woofers and side vented ports.
The last time I listened to these speakers, I was not overly captivated because they sounded disconnected. I blame the initial setup and source material for this. The speakers themselves were not broken in and neither were the electronics. Plus the wiring could have been better. I listened to some music I knew and I know from past experience the Ktema can do magic when setup correctly.
Nevertheless, the demo here you present would be a good buy. They are new but they already demonstrate the classic Sonus Faber sound with bass to boot.
Yes, they are akin to the Stradivari with more bass in the Ktema arsenal. If I were to choose between these and Stradivari, I would choose these. If I were to choose between these and Lilium, I would choose Ktema because I think Lilium are an engineering mistake. I have not yet heard the new Sonus Faber positioned below the Lilium which would correspond to the SRRP overseas price point of the Ktema.
These are a loudspeaker that you can have for life but placement is important. Given that McIntosh and Sonus Faber are a great match, Ktema would probably be even better.
My rig easily outperformed this demo rig but that is an unfair conclusion on the day. Ktema potential was heard and I have heard their magic perform exceptionally well in Europe.
They are not as tall as I remembered either.
Pic of my most recent demo: