Bill hit on what I mean - I'm not smart enough to know from a plot what the implications for the sound are but I have a feeling 2+ ft^3 is going to be too "dry" for my tastes.

The boxes I have the 2225's in now are around 4ft^3 ported at 40Hz per JBL and they seem really great so I'm quite unsure now. I'm certain Wayne's speaker sounds great to the majority of people, but it's way smaller than JBL recommends - hence the quandry.