Sealed Enclosure Building - Compensate for Woofer Volume

[taosd 10+ year member]

Simple question, searched and didn't find anything. When I am building a Sealed Enclosure, should I be compensating for the volume of the driver in my calculations? I have a JL 12w6v2 which has a displacement of about 0.07ft³... I want to make an enclosure that is 1.25ft³, so, should I make the enclosure 1.32ft³? or should it just be 1.25ft³?

Thanks!

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[terra 5,000+ posts]

Yes add it

 

[mlstrass 5,000+ posts]

x2 build it 1.32^3 for a final displacement of 1.25^3

 

[Vermithrax 10+ year member]

X3. You add the woofer displacement for any type of enclosure unless you're invert mounting the sub. You also have to compensate for volume if you put braces in the enclosure.