Posted October 13, 200915 yr ok, gonna be fun fitting this in my grand am. removed the double fold backseat. and plan on put a box running all the way from the trunk to behind the driver seat here are some plans for the box its about 9-10 cubic ft right now.questions?shape dosent matter dose it?do u think ill need some more support?how big should i make the port?
October 14, 200915 yr Really Need More Information. I Suppose This Is An 18" Judging By Box Size. You Need To Double Baffle The End Where The Woofer Will Be Mounted, I'd Probably Add Bracing In The Corners. 12-16sq. in. Of Port Area Per Cubic Feet, Tune Around 30hz-35hz. You'll Have To Calculate Your Dimensions To Determine Your Port. A 2X4 In The Middle As A Brace Wouldn't Hurt, Either.
October 15, 200915 yr Author ok, made a newer design, cant post pics but its about 7 cubic feet. and its got about 110 square inches of port area. the port is accross the bottom and the sub area is above it.