Their website is terrible and there are no specs available anywhere. I had a chance to hear a pair of Nuance bookshelves however and they sounded very good. They were a grand which is too much relative to the 80s IMO. But besides the 22s, M3s, Bose 301s and Sonys, I haven't listened to any other bookshelves. The Nuances that I heard definitely blew these other bookshelves away though.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated