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Change of plans, going sealed instead of ported and I Just bought two Powerbass M154's. Each speaker needs at least 3.75 cu ft internal volume, So I would be looking at at least an 8cu ft box correct?

So far the dims I came up with on the rockford box builder are h20 x w35 x d24 = 8.07 cu ft, Now am I supposed to multiply all those numbers and divide by 1728? That comes out to 16,800/1728 = 9.72, Now I dont understand what to do next, what does 9.72 mean?

I can help if you want. First, How much space do you have to work with? Also, are you sure you want sealed? If you are going for pure SPL ported would be the way to go. I use Bass Box Pro and it will figure out most of the stuff you need so let me know what you have as far as space and I will give you dimensions.

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