How much does the cubic feet of a box effect your subwoofer?

[Tgilchrist 10+ year member]

My 10w7 is spec'd for 1.5 ported ann 1.25 sealed. I cant even find any ported boxes to fit my truck but the biggest sealed i found was .90 cu. ft i think. If i used that box how much would my sub under preform?

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[Johnny Law.Lulz 5,000+ posts]

It wouldnt be much different.

 

[Tgilchrist 10+ year member]

Ives always heard that it doesnt matter much in sealed boxs like you said but with ported boxs if the cu.ft is precise it pushes the woofer harder with the better air flow.

 

[jdawg 5,000+ posts]

minus woofer displacement the box will be more like .7 lol

 

[Tgilchrist 10+ year member]

Any other opinions on it?

 

[michaellane 5,000+ posts]

build a box to fit what u need