Wayne Parham Messages: 18792 Registered: January 2001
Illuminati (33rd Degree)
The Kilomax 15 does very well in a 3ft3 box, though deeper extension results when a larger cabinet is used. You might consider cutting a panel to close the 15" hole and use a smaller driver instead, one that makes the volume larger in proportion to driver compliance. For 3ft3, you'll probably find more 12" drivers that are tuned to be used as subs.