Posted September 9, 200817 yr 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.
September 9, 200817 yr The Motor does not get bigger with options added. Displacement stays the same.