calculation question, displacement...

[DIGIDIGIBOMBO 10+ year member]

Hi lets say that my box must be 1.7ft^3, internal net volume, it means that we must have the value of 1.7 after substracting port displacement, speaker displacement( it is usually stated on the catalogue) and also the magnet size etc...??because the pioneer 5000spl for example is huge, we cannot ignore the volume of magnet and back of the speaker right? thx a lot

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[xmax-1 10+ year member]

Build the enclosure at 2.5 cubes (gross). give it a vent of 42.50sq.in (or so). and make the vent 18" long (deep). HAPPY BOOMING!!!!