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Thread: Box calculation question |
    
Silver Member Username: 2pacalypse1971
Sandusky,
Oh
Post Number: 243
Registered: Jul-05
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| Posted on Wednesday, February 14, 2007 - 09:29 pm: |
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ok i have a prefab box for 2 12's that is ported and i alwasy wondered if there was a formula to see what it is tuned to and what the cubic feet of it it and everything, i'll post the dimenstions of everythin if anyone can help..
it is
Lenght---36 inches
Height---13 1/4 inches
depth---16 inches
The port is in the middle of the 2 chambers and is 3 inches wide and 12 inches tall....this is just a throwout, if no one knows anythi bout it its fine i jsut always wondered and my local audio shop seemed to have no idea what was goin on
Thanks! |
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Silver Member Username: Nd4spd18
Post Number: 310
Registered: Jul-06
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| Posted on Wednesday, February 14, 2007 - 10:27 pm: |
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I assume those are external dimension? If so, you need to know the wood thickness.
You also need the depth of the port walls to calculate the tuning. |
Silver Member Username: 2pacalypse1971
Sandusky,
Oh
Post Number: 244
Registered: Jul-05
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| Posted on Thursday, February 15, 2007 - 12:16 am: |
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the depth of the port walls are 13.5 inches and the wood thickness is 5/8 inch |
Bronze Member Username: Lowgan
Post Number: 14
Registered: Feb-07
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| Posted on Saturday, February 17, 2007 - 01:11 pm: |
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http://www.rockfordfosgate.com/rftech/boxcalculator.asp
this will tell you the cubic feet for future reference.
3.559 cu. ft is your answer though |
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