Enclosure design help

[CLNSHVNnDRAGGN]

Looking for some help designing a box for my 2 DD3512's in the extended cab of a Nissan Hardbody. The dimensions I have to work with are 43.5" wide x 20" high x 11.5" deep on the top and 16.5" deep at the very bottom. I would prefer to have the subs down-firing because with those dimensions my seats will be tight against the box and the amps will be mounted on the top of the box. The port can either come out the front middle between the seats or out the left side because there will be about 8" of space between the box and sidewall because my battery is on the floor there. I will be using 3/4" MDF. I'm not looking for strictly numbers so something that is gonna get loud but at the same time sound good. Thanks in advance.

[Joe X]

With a 8" 18" long side aero would an option to explore. Down firing would take away some volume of your dims.

Edited May 22, 2012 by Joe X

[john253a]

give me a minute and ill draw it up

its a bit small but with some polyfill and decent power it will sound alright,

you would have been better off with the 10, but it will work

Edited May 22, 2012 by john253a

[john253a]

[CLNSHVNnDRAGGN]

Thanks for the help. Just wondering, would it make a BIG difference if I were to move my battery from back there giving me another 8" of width? I'm going to be putting a Chevy small block in the truck soon and should have room to put the battery back under the hood once that's done.

[john253a]

it will make a big difference, it will increase the cuft of the box and put you closer to the optimum range for those subs

Edited May 22, 2012 by john253a

[Joe X]

You need to make sure that there's some space between the subs and the seats.

[CLNSHVNnDRAGGN]

I didn't get a close look at the dimensions on the drawing earlier because I was on my phone but that won't give me any room for the subs behind the seats and there is no room for my seats to move forward which is why I was hoping I could have it down firing. I'll try to get out today and see if I can squeeze out any more space in there.

[john253a]

you could do the same design and put the subs in a different position, but if you gonna move your battery, get the new measurement and make a box off that

[CLNSHVNnDRAGGN]

Did some more precise measuring and came up with some new numbers. 51.5" wide, 20" high, 13" deep top, 16.25" deep bottom. This allows me to have the subs down-firing with 4" of space between the bottom of the box and the floor. I put the numbers in Torres but not sure if I did everything right.

This is with the port running the length of the box along the back wall coming out the top. My cuts aren't going to be the same as the cut list here though because the sides are going to go to the floor to help hold it up. If this isn't correct or it's not a good idea to have the subs down and port up let me know how you think it should be changed.