Helomech, the acoustic coupler in the 2 and 3 is an active driver. Wondering if you know any technical details re how it essentially functions as a PR.Look at the measurements of the 2Ce Sigs in Stereophile, it does indeed behave more like a PR.
Would never, ever think that the bass in the 3 lacks snap, but of course that’s subjective and perhaps amp related
The whole series is somewhat lacking dynamics and bass texture. Not amp related as I've used the same amps on many other speakers of similar load difficulty. They dig plenty deep in the bass, with plenty of output, but it's not the tightly-controlled bass of true AS.