Need a little advise on box design

[JBloud47 10+ year member]

Im about to finaly get started on my build for my 4 18" SX's. Wanting to get some input on box volume, right now i thinking about going 7.5 cubes per 380 Sq in of port @ 32.

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[18inchjeepin 10+ year member]

1.875 cubers per driver or 7.5 per driver?

 

[JBloud47 10+ year member]

thats 7.5 cubes per driver

 

[DarkFox 10+ year member]

wow....

 

[JBloud47 10+ year member]

input anyone

 

[DarkFox 10+ year member]

seems like a little much.... but then again, i have never worked with the sub. What are you going for?

 

[btdickey99 5,000+ posts]

30 cu ft box?

are you planning on walling it off?

 

[DarkFox 10+ year member]

think hes gonna put it in the spare tire well

 

[profundus-sanus 10+ year member]

need more info about the overall setup.

vehicle? wall or what?

 

[JBloud47 10+ year member]

set up is in a explorer, 4 18'' RE SX with a XXX 10000D, its just a daily set up, oh and no it not going to be a wall, but im also using the space where the back seats were.

 

[DarkFox 10+ year member]

IMO, for daily driver, make it a wall behind the rear seats. Not much of a daily driver when you turn your Explorer into a 2 seater. Can probably cut down your enclosure size a bit too.

Since your asking advise, I would go with as much room as you can get behind the rear seats and put all the amps and stuff on the back of the box. I think some explorers have larger rear storage then others though and am not sure which one you got. Just my 2 cents. no doubt if you do what your planning it will be loud, just seems like your sending mixed emotions about daily driving and comps.

How much space can you get behinde the seats? I know a system I did in a buddies explorer, we didnt go above the seats and were at like 12 cubes. Depending on what model you got, I can see you get 24cubes +

 

[JBloud47 10+ year member]

yeah thats close to the plan, but right now with box deminsions at 50.5wx 19h x 60l im getting right around 33 cubes, and still got about 2 feet till the back gate.

 

[DarkFox 10+ year member]

how much total displacement are you factoring for port and woofers?

 

[DarkFox 10+ year member]

nevermind, did a rough estimate and it looked like about 2.2, I guess 3 feet is close enough for total displacements, so that 30 @ 32hz looks about right. All rough estimates though

 

[JBloud47 10+ year member]

um off the top of my head 6.5 for port, .22 x4 for subs and about .5 for support.