2006 grand Marquis. 4x12s what box design?

[loudcaprice5]

I just picked up a 2006 grand Marquis today. Only 43,900 miles on her. Anyways. I’m looking at 4 hdx3 12s from soundqubed. What box design do you guys recommend? I’m looking for a loud daily driver

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[SlugButter]

7.5 cubes tuned to 33 Hz.

 

[loudcaprice5]

Which way should the subs and port face?

 

[SlugButter]

Which way should the subs and port face?

I’d recommend firing everything to the rear usually, but I don’t think you can get all 4 subs and a port to fit on 1 baffle in a trunk. I’d probably mount the 4 subs facing up and the port back.

 

[Popwarhomie 5,000+ posts]

2 15 4th in a crown vic.

Port through rear deck.

 

[loudcaprice5]

I would love to have it ported through the deck or back seat arm rest

 

[JasonBeeman60]

2 15 4th in a crown vic.
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Port through rear deck.
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Can I get the specs and Design for this? I want to do this in my 02 MGM

 

[Grimmjoww]

2 15 4th in a crown vic.
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Port through rear deth

2 15 4th in a crown vic.
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Port through rear deck.
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That's sick!