need to know if this can fit 18" DC level 5

[curse1022 3]

Well i'm talkin to a member on *** about buyin his 18" dc level 5 but first i got to make sure i can fit it decently in my trunk (wall is not an option and im not taking out the back seats).

my trunk is 16-17" high depending on location and im looking to run a box this size (optimum size without going into a different shape from square/rectangle):

32" wide, 16" tall, 30" deep. should be ~ 7.795 cu. ft before and displacement.

im lookin to have the box tuned to 31-33hz as i listen to mostly rap and techno. the sub specs according to DC site are:

Mounting Depth = 10.5Mounting Hole Diameter = 16.75"Motor Width = 9.84"Weight =	  80.5lbsVC Diameter = 3" Flat 8 layerSd = 1159.00 cm²Suggested Ported =	  5³ ftSuggested SPL Ported = 8³ ft

I was thinking of facing up towards the trunk/spoiler, as it obviouslly will not fit facing the license plate haha.

was planning to use .5" MDF with a double baffle due to the sub's weight, can do more if neccesary though.

Really wanting this setup but i wanted to check on spacial issues with all of you! Thanks ahead of time, can get any more information if needed, pics etc.

edit: i could also run a an upside down "T" shaped box but i've heard it wouldn't sound very decent....

Edited November 22, 2009 by curse1022

[altoncustomtech 773]

we built the box for my lil bro's SSD 18 into the trunk of his Grand Prix sealed into the cabin.... works great, 8cuft into the trunk left no room for play though...... I always figured that a person is only limited by their imagination..........

[curse1022 3]

i dont really care for any trunk space, which is why i said im willing to build a T-shaped box if it would still sound as good since it would also add more cu. ft. im just tryin to see if i can maintain over 5 cu. ft with 31-33hz tuning and the sub displacement. how tall was your lil bro's box?

[altoncustomtech 773]

his is 36w x 19t x 32d...... tuned to 32hz.... the only way a "T" shaped enclosure could hurt the sound would be if you mounted the sub in the trunk, not sealed into the cabin like we did my brothers.... in that case if you've used up every sq.in. you can there's simply not enough air space for the sub to excite the air efficiently and that causes a loss in output.... otherwise if you were to do it like we did his, and like many other people have done many times over, and seal it to the cabin of the car you could effectively use the entire trunk and get the max space available with no worries about cancellation, air space around the box, etc.... usually when I do trunk cars this is the only way I'll do them....

Edited November 22, 2009 by Alton

[curse1022 3]

Do you have a picture of the final result? im semi confused about it to be honest, by doing it how you did it would i lose the back seat at all? and like i said, the the trunk kind of tilts up near the back so it could end up wierd, thanks for the idea though im interested for sure

[altoncustomtech 773]

he has all the pics for it..... but i have a link to a build log that should give a good idea....

here's the link: FBI90909's Build Log

Now he built a fiberglass beauty panel to seal the sub into the cabin of the car, we simply built the box to mate up perfectly with the back of his seat where it folds down.... had to use a hole saw drill bit to put some holes in the solid plastic panels that make of the back of the seat so allow the sound to easily radiate into the cabin, but it was all worth it.... took 2 weeks to build that damn enclosure in there....

Car Audio and Electronics had an article doing the same thing in a Mustang some time back.... i'll have to see if I can dig that up....

[curse1022 3]

I'm still readin and it looks to be a great build so far but i simply dont think that would work with my car =/

[altoncustomtech 773]

yeah the guy does a hell of a job with it....... wait til you see the flex vids....

like i said before the fiberglass beauty panels aren't for everyone.... but I've done that type of install in over a dozen cars with seats that DON'T fold down and the results were fantastic, i swear its louder, cleaner and cheaper in the long run as you don't have to sound deaden the trunk since all the movement is in the cabin..... but, to each his own.... and there's a chance that it simply wouldn't work in your car but i figured I'd throw it on the table....

Edited November 22, 2009 by Alton

[curse1022 3]

I just dont quite see an 18" fitting in that area of the cardue to my strange car design back there, thought it was a good suggestion Really wondering about the "T" shape or whether my original dimensions would work.

[altoncustomtech 773]

yeah some cars lend themselves to certain configurations better than others...... your original dimensions could work as DC does show 5cu.ft. being acceptable.... and according to my calculations, you could yield around 5.5cuft after displacements tuned to 33hz with 85sq.in. of port area..... not too shabby methinx.....

[curse1022 3]

K well we've established it can fit but does anyone know if an enclosure 14"high x 34" deep x 32" wide will work?

Edited November 22, 2009 by curse1022

[jcarter1885 995]

First of all I would suggest you use 3/4" mdf and not .5" mdf for a sub that size, just my .02. Yeah that enclosure is just any where around 5.2 ft^3 and up depending on port size and placement.

[thebiggmann12 14]

if ur facing the sub up, dont forget to allow room for the sub to mount in the top of the box and to give it some room for excursion, ur 16" tall is now probably about 12" tall.