I think you seriously have to listen for yourself, here's why.
I always love the Rockport house sound, having heard all the models from the Mira up to the Avior in numerous settings (home setting that is, not show setting). At the time, Rockport was coming up with the Avior, the first series with Beryllium tweeter and all front firing woofers. I was overjoyed and almost placed an order unheard beacause I thought the soft dome they used back then could have a bit more sparkle and the front firing woofer would make the cabinet thinner and easier to place in my room. Well I did not place the pilot order and in the end had a chance to listen to the Avior prior to making decision. In my opinion, it was somewhat a departure from the old housesound I was accustomed to. Maybe it was that I prefer the old Audiotechnology midrange, or maybe it was the new Beryllium tweeter, but somehow I found the sound to be very different. Bottom line, I do not think the OP analogy of the housesound applies here. It would apply if you move up within the old series I believe, but this is entirely a new design.