Please help me

[Vega 10+ year member]

I posted this once before but I didn't get an answer so I'll try one more time.

I'm buying a prefab ported box that is: W 17 1/2'' x H 14 1/4'' x D 16'' with a square port thats 2'' x 12 1/2'' for a 12'' sub that has a displacement of 0.83 cu ft. Can someone tell me what the box is tuned to or close to what it is tuned to? Or can someone tell me atleast how to calculate what the box will be tuned to or?

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[djjdnap 10+ year member]

http://www.carstereo.com/help/

http://www.carstereo.com/help/Articles.cfm?id=31

try that