Anyone want to design me a ported box?

[badandyturbo 10+ year member]

4 12's

2.00 cu.ft. recommended per sub

30 sq"x 13"L port area per sub

i have a space about 54" long, 24" wide, and 24" tall

It will repalce the backseat of my truck.

Thanks for the help in advance...//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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[rpfuror 10+ year member]

mmm.. you want ~48Hz? what frequesncy are you targeting?

 

[Jmabrao 10+ year member]

How about this design??

Net Volume: 8 cubic feet

Tuning Frequency: 32 Hz

Port Width: 5.5 inches

Port Area: 123.75 Square Inches

Port Length: 31.5 inches

External Dimensions: 24 wide x 24 tall x 47 deep.

Board Dimensions and Quantity

Color Count Width Height

Top and Bottom 2 24 inches 47 inches

Red 1 17.75 inches 22.5 inches

Yellow 1 46.25 inches 22.5 inches

Black 1 22.5 inches 22.5 inches

Green 1 47 inches 22.5 inches

Teal 1 28 inches 22.5 inches

Number of 49x97 Sheets of 3/4" MDF: 1.25

I used Decaf car audio's ported enclosure calculator.

 

[badandyturbo 10+ year member]

Nice I like that look. How do you know what the best frequency is?

 

[Jmabrao 10+ year member]

This is a general rule of thumb but 30 and under is for sq, 31-38 is Sql, and anything above 38 is SPL. Keep in mind pure SPL will not sound very good

Did you mean the tuning of the box, if so it's a mixture of box size, port size, and port length.

Joel

 

[angrytrucker78 10+ year member]

How about this design??

Net Volume: 8 cubic feet

Tuning Frequency: 32 Hz

Port Width: 5.5 inches

Port Area: 123.75 Square Inches

Port Length: 31.5 inches

External Dimensions: 24 wide x 24 tall x 47 deep.

Board Dimensions and Quantity

Color Count Width Height

Top and Bottom 2 24 inches 47 inches

Red 1 17.75 inches 22.5 inches

Yellow 1 46.25 inches 22.5 inches

Black 1 22.5 inches 22.5 inches

Green 1 47 inches 22.5 inches

Teal 1 28 inches 22.5 inches

Number of 49x97 Sheets of 3/4" MDF: 1.25

I used Decaf car audio's ported enclosure calculator.

Where'd you find that calculator?

 

[rpfuror 10+ year member]

"Decaf car audio's ported enclosure calculator"

http://www.subwoofertools.com/forum/ported-box.asp

it not bad if you have all the exact specs you want.

 

[Jmabrao 10+ year member]

http://www.subwoofertools.com/forum/ported-box.asp

oops lol

out of curiosity what kind of subs are they going to be???

Joel

 

[angrytrucker78 10+ year member]

Oh, haha. I thought there was one that gave you that diagram. I know about that calculator. Thanks though!

 

[Jmabrao 10+ year member]

I modelled it using rhinocerus, I cant get the hang of sketchup.