how do you determine the tuning port
wat im asking is i got 2 15'' re sx's,i want to build my own enclorsure out of 3/4 inch mdf,i know wat the subs call for in space,3.5 cubic feet which is no problem to figure,i was thinking of making the slot port in the middle of the box between the 2 subs,wat i dont understand how to figure out is how long should the slot port be.any help is greatly appreciated.
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