I've heard the Elipsa in several different setups and it sounded radically different in each. It is a speaker that seems a bit demanding, in terms of location and setup. It sounded quite good in one setup, so so in another and quite bad in a small room (a difficult room for any speaker). In the small room, the MUCH cheaper Liuto floorstander sounded much better. This does not mean that the Liuto is in any way a "better" speaker; it happened to be a better match.
I have heard the Stradivari in two friend's system. While the systems and rooms were quite different from that where I heard the Elipsa (so my judgment is more an educated guess than anything else), the Stradivari seems to be a warmer sounding speaker with nicely saturated sound (rich in harmonics) while the Elipsa is more harmonically thin sounding side (more like the modern audiophile ideal). I would NOT consider the Elipsa a smaller version of the Stradivari. The Anniversario is much closer to the sound of the Stradivari than the Elipsa.
I have heard the Stradivari in two friend's system. While the systems and rooms were quite different from that where I heard the Elipsa (so my judgment is more an educated guess than anything else), the Stradivari seems to be a warmer sounding speaker with nicely saturated sound (rich in harmonics) while the Elipsa is more harmonically thin sounding side (more like the modern audiophile ideal). I would NOT consider the Elipsa a smaller version of the Stradivari. The Anniversario is much closer to the sound of the Stradivari than the Elipsa.