Chris,
Unless I'm mistaken, Paradigm's claim: "....the problem of enclosure resonances is not simply reduced, it is essentially eliminated" is made only with respect to the Signatures.
That said, I even question your claim about the 100's being "anything but low in measured resonance"
Note John Atkinson's (who conducts these measurements) comments:
I haven't said anything about coloration. That's because, despite the variety of program material I auditioned on the Studio/100s, I was never made aware of any persistent problem in this area. This is one neutral speaker.
With respect to their cabinets, Paradigm states:
Enclosures use acoustically inert high-density hardboard and strategically located radial braces as needed to limit unwanted resonances, increase enclosure stiffness and prevent “ballooning” effects.
Acoustical damping material eliminates internal standing waves. Low-diffraction grills minimize interference from enclosure edges. High-velocity, low-noise ports allow maximum bass efficiency with minimum turbulence distortion.
You do realize that these are a full-range speaker that retail for a modest $2300/pair? Given this, I find their measured and, more importantly, observed performance to be quite impressive. I spent quite a bit of time listening to these speakers before electing to go up to the Signatures. ..The 100's are very well built, very substantial, and - I think - compare quite favorably with other speakers in their price range.