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Fi sp4 18 box suggestions


Keveeno

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Here is a suggestion:

Enclosure Specifications:

Fb = 32 Hz
Vb = 7 ft^3

External Height = 21.75 in
External Width = 39.5 in
External Depth = 23.5 in

Port Width = 30 in
Port Height = 3 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) = 39 1/2 x 23 1/2

Left & Right Sides = 22 x 19 1/2

Front & Back = 39 1/2 x 19 1/2

L Port Internal Assembly Parts:

Front to Back = 18 1/2 x 31 1/2
Extension = 5 3/4 x 31 1/2

Port Left Side Assembly:
18 1/2 x 3 1/2
10 x 3 1/2
Port Right Side Assembly:
18 1/2 x 3 1/2
10 x 3 1/2

Assembly guide (generic dimensions):

1x18SUPB.jpg



Important notes:

- The port needs 3 1/2" of free airspace in front of it for proper operation.

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

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  • 2 weeks later...

Thanks joe for the box specs. Just kinda curious. I was wondering if you know a lot about 6th order bandpass boxes, and is it possible to fit in this application? Just mainly looking for airspace of each chamber and port dimensions for the ports. I can take out the back seat as well to do like a c pillar wall, port towards the front.

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  • 1 year later...

Here is a suggestion:

Enclosure Specifications:

Fb = 32 Hz

Vb = 7 ft^3

External Height = 21.75 in

External Width = 39.5 in

External Depth = 23.5 in

Port Width = 30 in

Port Height = 3 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) = 39 1/2 x 23 1/2

Left & Right Sides = 22 x 19 1/2

Front & Back = 39 1/2 x 19 1/2

L Port Internal Assembly Parts:

Front to Back = 18 1/2 x 31 1/2

Extension = 5 3/4 x 31 1/2

Port Left Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Port Right Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Assembly guide (generic dimensions):

1x18SUPB.jpg

Important notes:

- The port needs 3 1/2" of free airspace in front of it for proper operation.

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

can you make this same box and same tuning for an sp4 15? please and thank you

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Here is a suggestion:

Enclosure Specifications:

Fb = 32 Hz

Vb = 7 ft^3

External Height = 21.75 in

External Width = 39.5 in

External Depth = 23.5 in

Port Width = 30 in

Port Height = 3 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) = 39 1/2 x 23 1/2

Left & Right Sides = 22 x 19 1/2

Front & Back = 39 1/2 x 19 1/2

L Port Internal Assembly Parts:

Front to Back = 18 1/2 x 31 1/2

Extension = 5 3/4 x 31 1/2

Port Left Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Port Right Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Assembly guide (generic dimensions):

1x18SUPB.jpg

Important notes:

- The port needs 3 1/2" of free airspace in front of it for proper operation.

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

can you make this same box and same tuning for an sp4 15? please and thank you

In the other thread you said you had an 18?

2007 Chevy Tahoe (SOLD)

12 ~ FI Audio X series 10" w/BP option

2 ~ DC Audio 5.0K @0.67

3 ~ DC Audio 5.0K @1.0 

2 ~ PPI 3 way sets (not installed yet)

1 ~ RF T400-4, 1 ~ RF T600-2, 1 ~ RF T600-4

4 ~ CT Sounds 5.25" Strato comps  (rear fill only)

1 ~ XS Power D4800

1 ~ XS Power D3400

8 ~ XS Power XP3000

160 stock alt, Mechman 370 Elite, 185 DC Power

320+ Sq. Ft. Sound Deadener

Pioneer AVH-X5500BHS

Youtube: https://www.youtube.com/user/knfjdkghjudfhsgkjdhf/videos?sort=dd&view=0&shelf_id=0

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Share on other sites

Here is a suggestion:

Enclosure Specifications:

Fb = 32 Hz

Vb = 7 ft^3

External Height = 21.75 in

External Width = 39.5 in

External Depth = 23.5 in

Port Width = 30 in

Port Height = 3 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) = 39 1/2 x 23 1/2

Left & Right Sides = 22 x 19 1/2

Front & Back = 39 1/2 x 19 1/2

L Port Internal Assembly Parts:

Front to Back = 18 1/2 x 31 1/2

Extension = 5 3/4 x 31 1/2

Port Left Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Port Right Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Assembly guide (generic dimensions):

1x18SUPB.jpg

Important notes:

- The port needs 3 1/2" of free airspace in front of it for proper operation.

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

can you make this same box and same tuning for an sp4 15? please and thank you

In the other thread you said you had an 18?

i personally have an 18 and am building this box. my friend has an sp4 15 and wants the same box but he wants it sized and tuned to a 15 inch sp4.

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Here is a suggestion:

Enclosure Specifications:

Fb = 32 Hz

Vb = 7 ft^3

External Height = 21.75 in

External Width = 39.5 in

External Depth = 23.5 in

Port Width = 30 in

Port Height = 3 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) = 39 1/2 x 23 1/2

Left & Right Sides = 22 x 19 1/2

Front & Back = 39 1/2 x 19 1/2

L Port Internal Assembly Parts:

Front to Back = 18 1/2 x 31 1/2

Extension = 5 3/4 x 31 1/2

Port Left Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Port Right Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Assembly guide (generic dimensions):

Important notes:

- The port needs 3 1/2" of free airspace in front of it for proper operation.

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

can you make this same box and same tuning for an sp4 15? please and thank you

In the other thread you said you had an 18?

i personally have an 18 and am building this box. my friend has an sp4 15 and wants the same box but he wants it sized and tuned to a 15 inch sp4.

Gotcha, killer sub(s) man, I run some myself. Wasn't hating, just clarifying in case someone took the time to design something and wasn't correct because of mistype or something (wasted time). All good. =)

2007 Chevy Tahoe (SOLD)

12 ~ FI Audio X series 10" w/BP option

2 ~ DC Audio 5.0K @0.67

3 ~ DC Audio 5.0K @1.0 

2 ~ PPI 3 way sets (not installed yet)

1 ~ RF T400-4, 1 ~ RF T600-2, 1 ~ RF T600-4

4 ~ CT Sounds 5.25" Strato comps  (rear fill only)

1 ~ XS Power D4800

1 ~ XS Power D3400

8 ~ XS Power XP3000

160 stock alt, Mechman 370 Elite, 185 DC Power

320+ Sq. Ft. Sound Deadener

Pioneer AVH-X5500BHS

Youtube: https://www.youtube.com/user/knfjdkghjudfhsgkjdhf/videos?sort=dd&view=0&shelf_id=0

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Share on other sites

Here is a suggestion:

Enclosure Specifications:

Fb = 32 Hz

Vb = 7 ft^3

External Height = 21.75 in

External Width = 39.5 in

External Depth = 23.5 in

Port Width = 30 in

Port Height = 3 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) = 39 1/2 x 23 1/2

Left & Right Sides = 22 x 19 1/2

Front & Back = 39 1/2 x 19 1/2

L Port Internal Assembly Parts:

Front to Back = 18 1/2 x 31 1/2

Extension = 5 3/4 x 31 1/2

Port Left Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Port Right Side Assembly:

18 1/2 x 3 1/2

10 x 3 1/2

Assembly guide (generic dimensions):

Important notes:

- The port needs 3 1/2" of free airspace in front of it for proper operation.

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

can you make this same box and same tuning for an sp4 15? please and thank you

In the other thread you said you had an 18?

i personally have an 18 and am building this box. my friend has an sp4 15 and wants the same box but he wants it sized and tuned to a 15 inch sp4.

Gotcha, killer sub(s) man, I run some myself. Wasn't hating, just clarifying in case someone took the time to design something and wasn't correct because of mistype or something (wasted time). All good. =)

yeah i completely understand. i made sure not to have any typos when i posed it. my buddy just needs the specs for a 15 inch. are you designing a box for me?

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