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Posted

So Im building a box for my 2 L7 12's. Its going in a 2002 Jeep Liberty so I was planning on subs up port back. My max dimensions are H22xW40xD16 with about 5 in of room between the port and back hatch. Im looking to build the box to 5.5ft^3 at 33-34Hz with about 80in^2 of port area. Im just having problems calculating my port size for the correct tuning and also finding the woofer displacement.

Im planning on having the port horizontal across the bottom similar to this

IMG_8737.jpg

I would like help finding the right dimensions for the box and port. Im using Torres Calculator.

Posted

Uhmm.. I can do 5 cubes net tuned in that range. Should still be plenty for 2 L7 12's.

'11 Jeep Patriot New Build

Head Unit: Pioneer AVH-P3200DVD

Front: Massive CK69 Components

Front Amp: Massive NX2

Rears: Infinity Kappa's

Subs: 8 Sundown SA-8 v2's

Sub Amp: AB 450.1

XS D3100

Come on 150!

Posted

I have my 2 12L7s in 6ft after displacement ans they love it. I built 3 different boxes and by far this was the best one. I've got ~80^2" of port area tuned to 35.5HZ and it sounds better than my last one that was tunes to 33HZ.

lol

or you can just start hooking shit up together and blow up speakers and your amp
Posted

I have my 2 12L7s in 6ft after displacement ans they love it. I built 3 different boxes and by far this was the best one. I've got ~80^2" of port area tuned to 35.5HZ and it sounds better than my last one that was tunes to 33HZ.

could you tell me how much 2 l7 12s displaces?

Posted

Err .06 each. There really isn't much on the underside of that cone lol

lol

or you can just start hooking shit up together and blow up speakers and your amp
Posted

Err .06 each. There really isn't much on the underside of that cone lol

Lol well im getting really frustrated dicking around with this. No matter what I do I cant seem to get 5.5-6ft around 33hz with ATLEAST 70in of port area much less 80.

Posted

I don't even know how you're getting 5.5 cubes after all displacements..? You said 22x40x16, correct?

'11 Jeep Patriot New Build

Head Unit: Pioneer AVH-P3200DVD

Front: Massive CK69 Components

Front Amp: Massive NX2

Rears: Infinity Kappa's

Subs: 8 Sundown SA-8 v2's

Sub Amp: AB 450.1

XS D3100

Come on 150!

Posted (edited)

I don't even know how you're getting 5.5 cubes after all displacements..? You said 22x40x16, correct?

yeah thats the max

edit:im getting 5.5 from what kicker and other people recommend. I dont want it the max recommended size but I dont want the minimum either

Edited by snoop3111

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