Got a new sub, need a new box

[Need Bass]

Ok, so I got a JBL GT5-15 for my birthday ( ) and I'd someone to design me a box to build for it.

I found the sub on Sonic Electronix: http://www.sonicelectronix.com/item_16026_JBL-GT5-15.html

I went and measured my trunk and the dimensions are as follows:

Total depth I'm willing to give up (front to back): 21in, or less

Width I'm willing to work with: 38in, or less

Height in the front of the trunk: 14in straight up & down, the 15in sub fits at a slant

Height in the back half of the trunk: 17.5

(The front half and the back half of my trunk are two different heights for some reason...)

I'm not even sure whether I would like to do ported or sealed, but if you suggest ported, I have some 4in diameter PVC tubing that I could use as a port if need be.

It's going in my dodge intrepid if you for some reason need to know

Thanks!!!

[Need Bass]

Pics!

:D :D

[OrzechNJ]

http://www.sonicelectronix.com/item_16026_JBL-GT5-15.html

Recommended Enclosure Specifications Recommended Enclosure Type Ported / Vented
Sealed Minimum Sealed Box Volume 1.5 cubic feet

Maximum Sealed Box Volume 1.5 cubic feet

Minimum Ported Box Volume 3.5 cubic feet

Maximum Ported Box Volume 3.5 cubic feet

Top-Mount Depth 7-5/16"

Cutout Diameter 14"

Shallow Mount Installation No

[Need Bass]

http://www.sonicelectronix.com/item_16026_JBL-GT5-15.html

Recommended Enclosure Specifications Recommended Enclosure Type Ported / Vented

Sealed Minimum Sealed Box Volume 1.5 cubic feet

Maximum Sealed Box Volume 1.5 cubic feet

Minimum Ported Box Volume 3.5 cubic feet

Maximum Ported Box Volume 3.5 cubic feet

Top-Mount Depth 7-5/16"

Cutout Diameter 14"

Shallow Mount Installation No

Sorry, that doesn't help me, I'd like some specifics mentioned, maybe a diagram/design. I've never built my own box before so I can't go off generalizations like the ones listed in the link I posted, even though I'm hoping to build this with my grandfather who's a carpenter. Thanks though

Any suggestions? Thanks again guys

[Need Bass]

Anyone? :/

I didn't mean to come across as a douche in my last post, but I just need suggestions more specific than what sonic electronix suggests.

EDIT: I realize I asked for advice in my first post, I'm actually asking if someone can design me a box, I'd really appreciate it!

Thanks guys!

[Joe X]

So here is a suggestion, the port can be placed like shown or to the side, good to rated power:

Enclosure Specifications:

Fb = 34 Hz
Vb = 3.54 ft^3

External Height = 14 in
External Width = 36 in
External Depth = 21 in 63.4 deg.
External Depth2 = 14 in 63.4 deg.

Cut Sheet List:

* All Dimensions in Inches.
* Wood Thickness is 3/4 for all Parts.

External Enclosure Parts:

Front = 15 5/8 x 36 (top/botton cuts: 26.6 deg.)

Top = 12 7/16 , 12 13/16 x 36

Bottom = 19 1/2 , 19 1/16 x 36

Back = 14 x 36

Left & Right Sides =
Top = 12 13/16
Bottom = 19 1/16
Back = 12 1/2
Front = 14

Port Quantity and Dimensions:

Number of Ports = 1
Pipe Port Diameter = 6
Pipe Port Length = 14

Assembly guide (generic dimensions):

Important notes:

- All trunk boxes built outside the car need to fit in their way in not just have the right dimensions.

- The port needs 6" of free airspace in front of it for proper operation.

- Setting your amp subsonic filter to 28Hz is suggested.

[Need Bass]

Thank you very much Joe! I appreciate your work! I'll see if I can make it happen, thanks for the help and quick response too!

I have one question, hpw much would I have to change if I already have 4in PVC? I can get 6in PVC if I need to, but I already have 4in so if possible I'd like to try and integrate what I have, if it's not too much trouble... what do you think?

[Joe X]

Two 4" ports would do a similar job although the length would need to be recalculated (and you would need to cut two holes), slanted boxes are hard for a first project, let me know any questions.