different box options..

[AllDayMJ 10+ year member]

ive been getting sick of my 12's and their output so i believe this summer im going to upgrade to an HDC318.

Right now im planning on doing sub up port back in the trunk of a grand prix gt..

ported itll have a little over 4 cubes with 60 in of port tuned to high 30's, i was wondering if i would have enough room to possibly to a 4th or 6th order bandpass with that size of sub and my box constraints. I ran it through WinIsd and it said it was more suited to 6th order/vented, which i was expecting.. can anyone give me some insight on this and maybe even help me with some box plans or atleast some general tuning advice for port and chamber volume?

externals are 34.5"x21.5"x14.5"

thanks, -mj

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