@cia83 if my memory is right. The FR5 plays deeper into the low end, has better dynamic control without sounded compressed at higher or instantaneous high SPLs. The Sonetto II sounded overly bright, clangy which o guess is the Sonus Faber identity as most of their stuff have this overly present harmonic content presentation that makes everything sound glossed and it is fatiguing on long listens. May impress initially just but how coloured the presentation is but is not something I’d want for long term listening
The FR5 is also bright but not annoyingly bright and the thing that stood out was the boxiness of vocals and how much power was needed to get them playing loud. They also had a wide horizontal sound field throw pattern (to be expected for a ribbon tweeter but that means narrow vertical sound field throw)
TLDR: the FR5 sounded better to me but I wasn’t impressed with them. But hey that is my opinion, hope you get to hear the FR5 and decide for yourself