How bad would it affect performace if the IB box was built with a reduction to the mouth? Say I used 2 - 15" IB subs, and the box was 12" x 18", but the mouth was only 12" x 12" (available space for hole in the ceiling).
Would this just be asking for trouble?
No way to get more space? I would think you would have some issues, possibly with back pressure:dontknow: or maybe it wanting to act like a huge bandpass box. Sorry i've got no good answer for you but i'm sure someone will step in and help.:T