Fi BL 15 Box for 2003 Tahoe help

[SoImVan]

My friend has ordered an Fi BL 15 (D4, cooling option added) and he wants help with building a box for it. I've searched around and I can't seem to find plans or specs that match up exactly for the application. He's planning to power it with a AQ 2200d. Stock alt and batt, (soon to be upgraded). Looking for sub up port back. Help would be much appreciated.

Sub Specs:

Fs: 33.6 Hz | 33.6 Hz Re: 0.7 Ohms/coil | 1.4 Ohms/coil Qms: 5.21 | 5.21 Qes: .28 | .28 Qts: .27 | .27 Mms: 261g | 261g Cms: 0.86mm/N | 0.86mm/N Sd: 810cm^2 | 810cm^2 Vas: 78.9 l | 78.9 l Spl: 91.8dB 1W/1m | 91.8dB 1W/1m Bl: 16.6 N/A | 22.7 N/A Xmax: 18mm | 18mm Rms: 1500W * | 1500W * Sealed box: N/A cuft | N/A cuft Ported box: 3-5cuft | 3-5cuft Sub OD: 15.625” | 15.625” Cut ID: 14.125” | 14.125” Mounting depth: 8.250” * | 8.250” * Displacement: 0.21cuft * | 0.21cuft

[Joe X]

So here is a suggestion:

Enclosure Specifications:

Fb = 34 Hz
Vb = 4.2 ft^3

External Height = 15 in
External Width = 38 in
External Depth = 21 in

Port Width = 4 1/2 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) = 38 x 21

Left & Right Sides =
Side 1 = 19 1/2 x 12 3/4
Side 2 = 20 1/4 x 12 3/4

Front = 32 3/4 x 12 3/4

Back = 38 x 12 3/4

L Port Internal Assembly Parts:

Front to Back = 15 x 12 3/4
Extension = 2 5/16 x 12 3/4

Assembly guide (generic dimensions):

Important notes:

- The port needs 4 1/2" of free airspace in front of it for proper operation.

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

[SoImVan]

Is the bracing necessary or just reccomended?

[Joe X]

It's very recommended

[SoImVan]

Hey Joe, my friend and I are getting together all the supplies today. Quick question. Does the top need to be double stacked?

[Mikey Bates]

I would. Especially if he displayed it with a double baffle

[Joe X]

Hey Joe, my friend and I are getting together all the supplies today. Quick question. Does the top need to be double stacked?

I recommend both the dual layer baffle and the bracing but you be the judge.

[SoImVan]

We're going to do the 2x top and bottom. Got a good bit of the box done today. About to post a picture. Will post more pictures when it's all done and lookin' pretty.

[SoImVan]

Here's what we got done today.

[Mikey Bates]

Nice! That 13 layer baltic birch where you get it and how much