2 ab hd 12s Box build in a reg cab

[JBGabriel 10+ year member]

Alright the plan is to put both of these twelves in my reg cab truck. I can probably fit 4 cubes if I try but I would like to stick around 3.5. The box will be externally aeroported with 3 4" or 1 8" tuned to 38. My question is how will these subs sound in a 3.5cuft box? Should I go bigger and loose even more space?

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[theMessenjah44 10+ year member]

Bob (owner of AB) says to keep them in 2-2.5 cubes. With my one HD 12, I went from 1.8 cubes with 24 sq. inches of port, tuned to 40 hz, to 2.0 cubes with 48 sq. inches of port tuned to 40 hz and gained 1.7db with the same equipment and similar box design (45'd corners and resin all throughout)

 

[JBGabriel 10+ year member]

Right now I have got one in an old 10" box I had before. Its 1.5 @ 38 and it sounds like shit so thats what i figured.

 

[JBGabriel 10+ year member]

So 4 cubes after displacements?

 

[theMessenjah44 10+ year member]

I'd give it 4 cubes tuned to about 35 hz with plenty of port area, like 70+ sq. inches

 

[JBGabriel 10+ year member]

I'd give it 4 cubes tuned to about 35 hz with plenty of port area, like 70+ sq. inches

Im goin with 1 8" aero. Subs forward port to the side externally. I think thats plenty

 

[theMessenjah44 10+ year member]

I think thats plenty

Whatever you say man, but that's only 50 sq. inches of port. 4 cubes x 16 sq in. = 64. I saw pretty big gains going from 16 sq. in. per cube to 20 sq. in. per cube.

 

[JBGabriel 10+ year member]

Whatever you say man, but that's only 50 sq. inches of port. 4 cubes x 16 sq in. = 64. I saw pretty big gains going from 16 sq. in. per cube to 20 sq. in. per cube.

Its also a flared aero. If it was a slot port I would totally agree with you. Am I wrong in saying that you can get away with less port area if your goin aeros as long as they are flared?

 

[MTXman 10+ year member]

You can get away with less port area with aeros regardless; being flared does also help. You should be fine.. will sound pretty nice IMO.

 

[theMessenjah44 10+ year member]

You could be right there. Anyway, very nice subs, I'm gonna be sad to see mine go here soon, but it just won't take the kind of power I'm looking for //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[JBGabriel 10+ year member]

You could be right there. Anyway, very nice subs, I'm gonna be sad to see mine go here soon, but it just won't take the kind of power I'm looking for //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

What do you got planed? My buddy peas247 on here had these on 6k and sitting in his car was ridulous. Hes got vids on here somewhere. Ill prolly stick with 3k as this is my daily and Im already strapped for room.

 

[theMessenjah44 10+ year member]

Current plan is a wall with an 18" IA Warden with a pair of AB 120.1's.....that could change, but sounds good to me right now, lol

 

[JBGabriel 10+ year member]

I used to have an 18 in my trunk car. You'll like it even more with a wall