Help on building a box for 2 15" L7's

[Jonathan Tyler Ecton-Rodriguez]

I'm no good at designing boxes with Sketchup so it would be great if someone could help me out with this.

I don't like my pre-fab box very much, it's horrible at hitting lows. My max dimensions are:

H:20"

W:37"

L:28"

My port:

H:18.5"

W:5"

L:18"

That should put me at 10 Cubes and 32 Hz

I have 2 15" L7's going into this, and it's going in a Chevy Blazer

[CleanSierra]

It puts you at 10 cubes before port and driver displacements. Your net airspace is not 10 cubes.

[Jonathan Tyler Ecton-Rodriguez]

It puts you at 10 cubes before port and driver displacements. Your net airspace is not 10 cubes.

Sorry about that, you're right, its at 8.6.

[Joe X]

Here is a suggestion:

Enclosure Specifications:

Fb = 36 Hz

Vb = 7.8 ft^3

External Height = 20 in

External Width = 37 in

External Depth = 28 in

Port Width = 18 in

Port Height = 6 in

Cut Sheet List:

* All Dimensions in Inches.

* Wood Thickness is 3/4 for all Parts.

External Enclosure Parts:

2 x Top & Bottom (3 parts) = 37 x 28

Left & Right Sides = 26 1/2 x 17 3/4

Front & Back = 37 x 17 3/4

L Port Internal Assembly Parts:

Front to Back = 16 1/4 x 19 1/2

Port Left Side Assembly:

16 1/4 x 6

Port Right Side Assembly:

16 1/4 x 6

Don't recommend 32Hz tuning for these subs.

[Jonathan Tyler Ecton-Rodriguez]

Here is a suggestion:

Enclosure Specifications:

Fb = 36 Hz

Vb = 7.8 ft^3

External Height = 20 in

External Width = 37 in

External Depth = 28 in

Port Width = 18 in

Port Height = 6 in

Cut Sheet List:

* All Dimensions in Inches.

* Wood Thickness is 3/4 for all Parts.

External Enclosure Parts:

2 x Top & Bottom (3 parts) = 37 x 28

Left & Right Sides = 26 1/2 x 17 3/4

Front & Back = 37 x 17 3/4

L Port Internal Assembly Parts:

Front to Back = 16 1/4 x 19 1/2

Port Left Side Assembly:

16 1/4 x 6

Port Right Side Assembly:

16 1/4 x 6

Don't recommend 32Hz tuning for these subs.

That's Awesome! I'm about to pick up a circular saw and jigsaw, and I already have 2 sheets of MDF, screws, drills, glue, and loctite to seal it up along with fiberglass resin! I'm excited to get this done and in my car Going to try and get it done this weekend.

[Jonathan Tyler Ecton-Rodriguez]

L Port Internal Assembly Parts:

Front to Back = 16 1/4 x 19 1/2

Port Left Side Assembly:

16 1/4 x 6

Port Right Side Assembly:

16 1/4 x 6

One question though, how do i build the internal parts of the port? Can you sketch it out for me?

[CleanSierra]

L Port Internal Assembly Parts:

Front to Back = 16 1/4 x 19 1/2

Port Left Side Assembly:

16 1/4 x 6

Port Right Side Assembly:

16 1/4 x 6

One question though, how do i build the internal parts of the port? Can you sketch it out for me?

He gave you the port dimensions. There are three pieces of wood, the top of the port that reaches toward the back of the box, and the two sides and are the same length and they make a rectangular box when glued and screwed together. 16.25"x19.5" for top, 16.25"x6 for sides.

[john253a]

Unless you prefer to use aero ports

Then you just need to make the box and cut a hole, that easy

[412 CVX]

32 hz tuning would be fine for these subs. I see you still havent learned much, joe.

[john253a]

if your still having trouble with port, aero sizes with box above are

2x8"x 20 long 34.5hz (12.4sq" p/ft 8.13net)

this bloke sells them to there members

http://www.caraudioc...ports-sale.html

or

4x6"x 22 long 35.5hz (14.5sq" p/ft 7.8net)

3x6"x 18 long 32.6hz (10.0sq" p/ft 8.4net)

http://www.psp-inc.c...ision_port.html