I am a Scansonic and Margules dealer and heard the Q10 at AXPONA powered by the Margules I-240. It was very good and makes for a richer, fuller sound compared to the MB-B series, especially in the midbass and midrange. I liked the sound so much but wanted a smaller form factor, so I purchased the Q8 in walnut that were on display. They look as good in real life as they do in the studio pictures. I will be receiving it this Monday or Tuesday.
FWIW, The Scansonic MB-2.5B is probably the best speaker you can buy under $5K as long as the room isn’t too big for it. With the proper amplification to wake them up, I find they sound wonderful in even medium sized rooms (~18’x22’).