4 MJ 18's in escalade need help

[fletch_1 10+ year member]

i got 1 MJ here at my house and just bought my other 3 today but im needing help on a box design for these 18's to fit in my escalade i have my 3rd row seat takin out im wantin to get a box like meade has the subs facing up and port back if anyone can help me with a design and tell me what i should tune the box to id appreciate it thanks

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[Buck 5,000+ posts]

contact dude in my sig. he's good

 

[Ridinhi 5,000+ posts]

contact dude in my sig. he's good

x2

 

[avs20 10+ year member]

You might also consider BrianChia. His plans are AWESOME. He puts some serious time into them. He designed my wall for my truck...and it got very loud with the subs you are about to use