Here's my experience with the Dynaudios:
Evokes: I listened to them in a couple rooms -- both pretty large, at a dealer in Colorado. 25 x 16 feet at least. The startling thing about the Evokes were how big they sounded -- really room filling. I also had the Evoke 30 floor standers at my home (similar size room but lower ceilings); these were decent but not as interesting to me. They certainly didn't sound as "big" as the floorstanding Focal 936's I tried in that room. My guess is that dtapo is making a valid point, here but don't underestimate the Evoke 10, 20.
Regarding the 40's, I heard them at that same dealer. They had a kind of midrange nuance, subtlety, soundstage holographic magic not present in a lot of other speakers. I don't remember what the amplifier or DAC was with those speakers, but they were different. So, take the description for what it's worth -- I cannot say for sure the role played by electronics.