Question about lower freq response.


During shopping for a set of speakers, I ended up comparing Paradigm s8's to revel f52.
In the end i picked paradigms s8 for several reasons. But one thing i just couldnt wrap my head around is that the F52 appear to go a bit lower in comparisons. The revel has 3 6.5 inch drivers wheras the paradigm s8's have 4 7inch drivers. But somehow the revels have more low end extension. Can someone explain why?
docks
Post removed 
There is a lot more to bass response than cone size and total radiating area.
The three factors that get traded off are box size, efficiency, and bass extension. Greater cone size in the same box size often means higher efficiency, and therefore less bass extension. The box sizes are pretty close (the Paradigm is maybe 10-15% bigger), and as cone size would predict the Paradigm is also slightly higher in efficiency. I would expect the real-world anechoic -3 dB frequencies of these two speakers to be within a few Hz of one another, assuming their rated efficiencies were measured with the same yardstick. If not, then all bets are off.

Duke
dealer/manufacturer
The responses ive been reading are from the same review site. So the paradigms are ported, have larger and more drivers but somehow dont go as low as the f52?