buildind an enclosure for 4 15s and need help

[jose_hdz646]

im building an enclosure for 4 15 inch audiopipe txxapx15b and i cant find the speaker displacement for them.... what should i do? does anyone know what the displacement is? ive looked everywere

[KyleBechtold]

what I do for a semi accurate disp is mounting depth x magnet area

[RAM_Designs]

~.15ft^3