4th order bandpass design feedback

[JJ30 10+ year member]

Hey everyone! I designed this noobie 4th order bandpass box on google sketchup, it's specs are fitted to 4 Power Acoustik P3 12 inch subwoofers. There are a total of 8 enclosures in this whole setup. The ported boxes are each 2 cu ft and the sealed ones are 1.25 cut ft, matching the specs exactly.

Will this work? I will be mounting the subs facing into the ported boxes. Thank you for any ideas or feedback! I don't want to waste a bunch of time and mdf on this if it won't produce spl/sq.

Edit: It will be going in the back of a '98 v70r. Box dimensions are Height: 2' 3 1/4", Width: 3' 4", Length: 3' 1".

Edit: Ported are tuned to 35hz

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