Will This Enclosure Work Well?

[jekeke]

I've designed and enclosure for the two 12" lethal injections I'm buying.

Enclosure style: Vented L Enclosure:

14" Height, 36" Width, 30" Depth

.75 MDF

Volume Displacement in cubic ft:

Woofers: .22

Braces: .21

Netl Volume: 7.11

Gross Volume without port: 6.68

Port Specifications:

Port Diameter- 11

Port Total Length- 36" Lv

Port Width- 4"

Port Height- 12.5"

First part of port- 28"

Second part of port after bend- 6"

Tuned 32Hz

Port Area- 95" squared

Port Volume- ?? Someone help please?

I just need to know the port volume so I can figure out gross enclosure size.

Also do you think this enclosure will work well with the 2, 12 inches subwoofers.

Thanks

[Joe X]

The IA 12"s are specified for 1.75-2.5 cuft each, Here is a design suggestion where I picked about 2.25 cuft per driver at about 33Hz tuning and on your dimensions:

Enclosure Specifications:

Fb = 32,62 Hz

Vb = 4,504 ft^3

Subwoofer Mounting = Flush Mounted

External Height = 14 in

External Width = 36 in

External Depth = 27 in

Port Width = 6 in

Cut List:

* All Dimensions in Inches.

* Wood Thickness is 3/4 for all Parts.

External Enclosure Parts:

2 x Front & Back (3 parts) = 36 x 14

Left & Right Sides = 24 3/4 x 12 1/2

Top & Bottom = 36 x 24 3/4

L Port Internal Assembly Parts:

Front to Back = 18 3/4 x 12 1/2

Extension = 5 x 12 1/2

Let me know what you think.

[jekeke]

System Build:

2x Incriminator Audio Lethal Injection 12 Inch Woofers Daul 2 Ohm Voice Coils

1x JL Audio 1000/1v2 Slasher Amplifier

1200HC Kinetik Battery

Stock Battery

0 Gauge "The Big Three"

Capacator 1 Farad

Enclosure Specifications:

3/4" MDF Material

Height: 14"

Width: 36"

Depth: 27"

Gross Volume: 6.364

Volume Displacement: Port - 1.04 Cubic Ft

Flush Mount Baffle - 0.08 Cubic Ft

Woofers - 0.22 Cubic Ft

Bracing - 0.056 Cubic Ft

Total = 1.40 Cubic Ft

Net Volume: 4.96 Cubic Ft

Individual Woofer Volume: 2.5 Cubic Ft

Subwoofers Facing Upwards

Port Specifications:

Port Area: 76.50

Height: 25.5"

Width: 3"

Length: 26"

Tuning Freq: 32.60 Hz

Volume 1.04 Cubic Ft

Ports Facing Upwards

Is this going to work good?

[Joe X]

The equipment will work, the enclosure numbers don't match. If you want to come up with your own numbers get the Torres calculator.

As far as I am concerned the suggestion I gave you would work best, even if you add the 45s the net volume won't change enough to have an effect.

[jekeke]

The equipment will work, the enclosure numbers don't match. If you want to come up with your own numbers get the Torres calculator.

As far as I am concerned the suggestion I gave you would work best, even if you add the 45s the net volume won't change enough to have an effect.

According to Nick at incriminator audio the tech support/owner I believe said to go with a 2 1/2 cubic ft per subwoofer more then the box you designed. This box is 2 1/2 per woofer, with 75 squared inches of port. He said to go 70 for 6 cubic ft box and this is 6.3 so i bumped it up to 75. Let me know what you're thinking. He also said to tune it to 35 but I think I'll like 31-33 better.

[Sergeant_Skyrim]

The equipment will work, the enclosure numbers don't match. If you want to come up with your own numbers get the Torres calculator.

As far as I am concerned the suggestion I gave you would work best, even if you add the 45s the net volume won't change enough to have an effect.

According to Nick at incriminator audio the tech support/owner I believe said to go with a 2 1/2 cubic ft per subwoofer more then the box you designed. This box is 2 1/2 per woofer, with 75 squared inches of port. He said to go 70 for 6 cubic ft box and this is 6.3 so i bumped it up to 75. Let me know what you're thinking. He also said to tune it to 35 but I think I'll like 31-33 better.

He might've said that it'll be around 6 cubic feet total gross volume (including port/woofer displacement) which would give around 4.5 cu ft for both woofers

[Joe X]

Ok here is what you seem to want

Enclosure Specifications:

Fb = 32,9 Hz

Vb = 5,038 ft^3

Subwoofer Mounting = Flush Mounted

External Height = 14 in

External Width = 36 in

External Depth = 30 in

Port Width = 7 in

Cut List:

* All Dimensions in Inches.

* Wood Thickness is 3/4 for all Parts.

External Enclosure Parts:

2 x Front & Back (3 parts) = 36 x 14

Left & Right Sides = 27 3/4 x 12 1/2

Top & Bottom = 36 x 27 3/4

L Port Internal Assembly Parts:

Front to Back = 20 3/4 x 12 1/2

Extension = 2 x 12 1/2

Let me know what you think.

The reason I went below the limit of Vb is because that's what you usually do when you are intending to run subs above their rated power to avoid overexcursion damage.