Noticed the outgoing range are all given a distortion figure that is <0.3% from 120hz to 20khz. Yet the new range are <0.5% for basically the same freq range.
Combine this with the fact every speaker (despite being the same physical measurements) across the board is now lighter by 1-3kg... I wonder if the build/cab construction might have maybe dropped a bit in quality? (The cynical side of me thinks perhaps to create a bigger delta in performance and build to the Ref series).
Because you would have thought all things being equal with respect to the cab and build, that adding MAT to the UniQ (the single largest change) would have reduced distortion, not added to it. So whilst we potentially gain a little treble refinement with MAT here, are we potentially also losing some refinement in other places from a lesser cabinet colouring the sound :\
re: the R7 vs R3 + subs debate. I'm sure everyone on this forum knows all to well how bass response is intrinsically linked to the position of the speakers relative to the listening position, for any given room. So it's not apples vs apples per se to compare quite fundamentally different configurations, but of course a significant benefit to having subs is decoupling the critical bass response away from the speakers. You can then place the main speakers to best optimise their position in the room for mids/treble, and then position the subs for best bass response, as the 2 are often mutually exclusive.
To relate that point to my use case, I use R5's which measure <30hz in-room and provide more than adequate bass levels in output terms. But I now use them with a pair for subs (1723 1S), plugging up the R5 ports to roll off the bass early and run the subs as a stereo pair with a 100hz crossover (plus PEQ on sub). This by far the best overall response in my space. Note I don't have bass management in my 2ch setup hence plugging the ports, it works well enough esp given PEQ onboard the subs (I'm sure adding in Dirac for example at the source would be only better again).
So whether one picks R5's, R7's, or even R11's - it has been my personal experience that dual subs will yield better results in almost any given room - because it's not just about output.