bandpass help

[406er 10+ year member]

hello fellas, im lookin to build a bandpass box for a db drag coming to my town in a few weeks. im not that familer with them. what would be better for my set up a 4th or a 6th order. the sub is a 15" RE SE with about 900watts. its goin in my 91 X cab S10, and im looking for MAX SPL. could some one modle me a box, and give me the front and rear chaimber NET volumes as well as tuning and port legnth. i know theres a few of u fellas that are bandpass guroos on here

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[80INCHES 5,000+ posts]

2.7cubes sealed playing into 3.5 cubes ported tuned 2 45hz with 100square inch port

u should enjoy that

80

 

[406er 10+ year member]

2.7cubes sealed playing into 3.5 cubes ported tuned 2 45hz with 100square inch portu should enjoy that

80

when modling it compaird to a highly tuned ported box. the band pass lacks out put. how could this be?? am i doin something wrong here.