Will it fit?

[germanyt 10+ year member]

So I decided to actually measure my cargo area in my Trail Blazer last night. Guess I'd just been lazy and not got around to doing it previously. I was making my enclosure and driver decisions based off what I had seen in other Blazers and similar sized vehicles. I planned on doing two 18s and now I'm not sure I can. I want to keep the box at a reasonable height so I can still see out my rear windshield. My max outer dimensions are 44.5" wide, 27" deep, and 23" tall. I could go a little taller but I'm already sitting higher that the rear seat with 23". I have a notch measured for the bottom front corner edge of the box for the batteries. It looks a lot like Meade's box but his batts are to the rear and mine are forward of the box. Subs would be up and port back. With a double thick baffle and considering the loss of air space from the notch which is 7.5" tall (batt height) and 3" wide (distance from edge of batt to terminal post) that leaves me with 11.83 cubes before sub and port displacement. That is 11.25 after sub displacement.

Just spent the past 10 min doing some math. Looks like after port displacement (140 sq in x 11 in long for 35 Hz) it comes to 10.19 cubes. After a couple 2x4s for bracing it is 10.07. So what now? Will it work? Would I be better off with 2 15s in a reasonable 8 cubes or will the 18s wang in 10 cubes with about 5 inches clearance from the port to the hatch? I could possible add another inch to the top height and gain another .5 to 1 cube.

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[mtlhead 10+ year member]

Will it fit?

thats what she said

 

[J31Rob 5,000+ posts]

thats what she said

beat me to it..

 

[germanyt 10+ year member]

come on fellas. any opinions related to the post, not the title?

guess i should have seen that one coming though.

 

[germanyt 10+ year member]

Just trying to change the title.

 

[BassBallin]

i would go another inch or 2 or go with the 15's

 

[germanyt 10+ year member]

If i go two inches taller I'm at 11.6 net

154 sq in port ( 7 x 22 and 8.25 long ) for 35Hz

 

[germanyt 10+ year member]

throw me a bone here

 

[dillinja666 10+ year member]

if you have 2 18's in a box like that do you honestly think you are even going to be able to see out your rear view mirror? put it as tall as needed i say

 

[germanyt 10+ year member]

good point

 

[hoxie08 5,000+ posts]

thats what she said

OMFG.

I entered this thread solely to post that... loser

 

[germanyt 10+ year member]

I would still like to keep it as low as possible. I can comfortable get as much as 11.6 cubes net. I just want something that will assure me the BTL 18s will get loud and sound good in that box.