so you need to make about a 1.5 cubic foot sealed enclosure that hangs from your rear deck.

by the way, i will be following information as listed here;

http://www.imagedynamicsusa.com/pdf/ID10%20D2%20v3.pdf
personally, it would be extremely simple to make this had it been my install. and just FYI, most audiophiles will agree that IB tends to be geared more toward sound quality than a sealed box, but it is harder to integrate in a vehicle. with that being said, lets pull out some formulas.

LxWxH

L=length

W=width

H=height

x=multiply

so we will use inches, because we are in america, and we are stupid. remember, our final number is in cubic feet - so we will have to do some voodoo math to come up with a final calculation in that form of units.

you have two 10" drivers that aa few inches deep. if we went with a box that, say is 11 inches internally, by 35 inches internally, and say, 10 inches deep internally. so far these are just numbers i am making up to get a starting point for what kind of space you have to work with. the enclosure is also 10" deep because the id10 is 9.125" deep - shall we continue? we would have a formula like this ;

35x11x10=3850

this is all well and good. you have 3850 cubic inches of internal volume, minus the displacement of two id10's wich happens to be .1 cubic foot.

so to find the cubic footage, we will divide 3850 by the magic number. the magic number is 1728. i found this magic number because one cubic foot = 12^3, that means, 12"x12"x12". so, we have this;

3850/1728=2.2280092592592592592592592592593

so you have 2.23 cubic feet of possible enclosure with a box that is smaller than the largest possible dimensions of your rear deck. so now you need to cut the size of the driver to that number. since you are using small drivers, we will say you have 2.1 cubic feet of enclosure space.

so you play around with the numbers a few times, do some more voodoo math, and come up with an idea. since you can not change the height and the depth of the enclosure due to the size of the speaker, you must change the width. so we will knock off a few inches to see if we can get your enclosure down to about 1.6 cubic feet (to account for the .1cf driver displacement) - mind you - this is not rocket science. if you can not get it perfect, dont worry, a few extra cubic inches internally will not destroy the universe.

just get it to about 1.6 give or take a few. you will be fine.

so;

27x11x10=2750/1728=1.59

perfect. so your internal dimensions are as follows;

27" long (C pillar to C pillar)

11" wide (glass to seat)

10" deep (rear deck to trunk floor)

awesome. 1.59 cubes. so now you have to figure out what kind of cuts you need to make. well this is some voodoomath that you will get used to. i usually cut my sides of the enclosure, to the exact internal dimensions and let the other sides overlap. so- you will be using 3\4" MDF - aka .75" MDF. do NOT FORGET to add an overlap to BOTH sides. as such.

top + bottom will be the same size. since we are looking at 11x27, we need to overlap the other pieces. so we need to add .75 for EACH side we overlap.

top piece = 12.5x28.5

bottom piece = 12.5x28.5

left side = 10x11

right side = 10x11

front = 10x28.5

back = 10x28.5

these are what you need to cut in order to make a 1.6 cubic foot enclosure. make sure you account for the blade thickness of the saw you will be using. make sure the edges are true 90 degree cuts. use a ruler - or a T square if you can. pre-drill the screw holes, and use tightbond II or III along with coarse drywall screws every 6~8 inches apart to hold it together. 90 degree clamps work well also.

after you build it - and are sure its going to fit - because i dont know what kind of obstacles you have in your rear deck - make sure you think about that before you build this, all you have to do is cut matching holes in the rear deck and your baffle and use some big fat bolts to secure the box to the rear deck. i would also counter sink the speaker into the box with either a router or another piece of MDF cut to 28.5x12.5 with holes the size of the outer diamater 10.125" of the speaker. also you might want to think about some sort of foam or rubber layer between the box and the rear deck to stifle any rattles it might cause. good luck and take pictures!

hope that helps.

req.

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