new box for 2 18"treo ssx

[hllywood29 10+ year member]

hi i am wanting someone to design me a box for 2 18 inch treo ssx for a 2003 tahoe with and adjustable port.i want it tuned to 35 hz for a daily driver and 50hz

for spl.i want the subs facing up and the port back.it needs to be 48 inches wide

and 25 inches tall and 25 to 26 inches deep.it will need an internal volume of 12 cubic ft after subs.sub displacement is 0.31 ft.i will gladly pay for a design thanks

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