Why not just build your own box? They are super easy to build and you'll save yourself a few bucks. If your just looking to build a square box, Home Depot makes all the square cuts for you. THen all you need is a jig-saw for cutting the holes and an electric screw-driver to put in the screws. Most pre-fabricated boxes use shotty construction and use terminal cups that leak air. Not to mention they are build using staples or brad nails without wood glue. If you need some tips, lemme know. I'm building a box for 2 Elemental Designs 12" subs in the trunk of my Q45. Should turn out quite spiffy when I'm done.
