Down-Up-Back sub firing box

[RajunCajun]

I have an Xterra and was wondering what is the best method for woofer direction: firing straight up, firing down, of staright out toward the the rear hatch? I'm using 2 JL 10" w1 and 1 JL 12" w1?

Thanks!

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[mapolley07 10+ year member]

sub up, port back is usually best in an suv

 

[mapolley07 10+ year member]

oh, and its a terrible idea to mix sub sizes.......a 10 and a 12? sell the 10 and buy another 12 or vice versa

 

[RajunCajun]

Stay with the same size even if two seperate amps will be used to power the 10s and 1 12? I assumed that if I used two different amps and set the low point frequencies for each woofer size I would be ok.