Bl 15 Displacement

[dtcharneski 0]

Is the displacement of the bl 15 different when its fully loaded(cooling,flatwind,dual 2,daily)? Most likely so. I'm using bass box pro to design a box but it only has the specs for the base bl(.18^3ft.) I know I want my box to be 4.0^3ft @ 32hz but I need to know the displacemnet to get it exact or as close to exact as possible. Any help would be appreciated.

[johnecon2001 82]

The Motor does not get bigger with options added. Displacement stays the same.