Wow, that reviewer sure has lots of nice words available. Glad he seemed objective.
I agree with their content value concept, but:
Why is the crossover mounted inside the cabinet where is exposed to the highest vibrations possible?
Lots of details missing, like the type of bass cabinet design used (which only affects the bottom 3+ octaves).
Why are diamond drivers better? I don't recall from my pre-engineering courses that diamond has the highest Young's modulus (stress to deflection ratio) yield strength to weight ratio, etc., (but this is decades later, very high-tech, and a highly specialized application).
BTW my $1600 (single driver) speakers have better binding posts, solder, and crossovers (none) and go deeper. As soon as we get the taxes done, my Behringer DEQ2496 is going to Endler Audio for mods. Then it will serve as my DAC, DEQ, baffle step compensation, and zobel circuit so the monoblocks can be wired directly to the drivers (that have their own wire clamps).