New memberUsername: Bassgalore
Post Number: 8
Gold MemberUsername: Glasswolf
NorthWest, Michigan USA
Post Number: 6067
this sounds like it may be the box.. yeah.
if it's sealed, each sub needs about 1.5cu ft.
ported, wach needs about 2cu ft.
you could also try rebuilding the box and going with an isobaric clamshell enclosure if space is a concern.. it won't be as lout as 4 sealed 12s, but it'll save space and work well.