BEst box for XXX 12"

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tooloud
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BEst box for XXX 12"

Postby tooloud » Thu Aug 28, 2008 5:02 am

Hi, this is my first time i own a XXX. it's the 12" old version XXX. I need to build an enclosure for this sub, dont know if it's better to use a aeroport or a port.
Can anyone help me? First of all i can't find anywhere the specs, second i need a box not for SPL purposes but for big and deep bass!
My trunk can fit big boxes but i hope i wont need such a big enclosure. I hope around 2.5 cuft. Thanks to anyone.
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KU40
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Postby KU40 » Thu Aug 28, 2008 10:59 am

an aeroport is a type of port. Whether you use regular PVC, an aeroport, or a slot port is up to you.

I'd make the box about as big as you can make it in the space you've allotted, tuned to 30-32 hz or so. 2.5 cube before displacement should yield you about 2.0 after port and sub displacement.
-Nick aka NS1 aka mopey aka speedbump
Alpine CDA-9827
Crossfire CFQ5.2
JL Audio XR 650csi components, Planet Audio TT2300
Crossfire VR404 on factory rear 6x8's until I get them upgraded
SI 15D2 + 3.8 @ 30 hz + Crossfire BMF 1000D = :)
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tooloud
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Postby tooloud » Thu Aug 28, 2008 11:38 am

I was wrong...i could build a box 3.8 cu.ft. Vented with a slot port. Anyone can help me to find the dimensions of the port? Box can be 26x14 (height) x18 (depth) inches, internal measures.
Tell me if im wrong. Need to tune it to 30÷35.
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KU40
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Postby KU40 » Thu Aug 28, 2008 5:49 pm

For 2 cubes after all displacements, tuned to 32 hz, build using the dimensions you gave. That is actually only a 2.92 cube box because you didn't take out the wood when you figured your volume. Then make the opening to the slot port 12.5" tall (the height of the inside of your box) and 2.25" wide. Then make it 32" long.

It will have to be an L-shaped port. So make your first port board 14.25" long to go towards the back of the box, then the second piece 15" long to run along 2.25" from the back wall.
-Nick aka NS1 aka mopey aka speedbump

Alpine CDA-9827

Crossfire CFQ5.2

JL Audio XR 650csi components, Planet Audio TT2300

Crossfire VR404 on factory rear 6x8's until I get them upgraded

SI 15D2 + 3.8 @ 30 hz + Crossfire BMF 1000D = :)
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X-OvrDistortion
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Postby X-OvrDistortion » Fri Aug 29, 2008 9:43 am

Can you do that in mm for me? Inches are srs bzns.
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KU40
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Postby KU40 » Fri Aug 29, 2008 10:13 am

X-OvrDistortion wrote:Can you do that in mm for me? Inches are srs bzns.


Please multiply all numbers by 25.4 for mm measurements.

and whoops, I didn't realize you said internal measures when you gave those dimensions. Oh well, this box works. Just make them your outer dimensions, ha.
-Nick aka NS1 aka mopey aka speedbump

Alpine CDA-9827

Crossfire CFQ5.2

JL Audio XR 650csi components, Planet Audio TT2300

Crossfire VR404 on factory rear 6x8's until I get them upgraded

SI 15D2 + 3.8 @ 30 hz + Crossfire BMF 1000D = :)
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tooloud
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Postby tooloud » Fri Aug 29, 2008 11:15 am

Allright :-) what size of wood did you think about it?
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KU40
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Postby KU40 » Sat Aug 30, 2008 8:58 am

3/4" MDF is pretty standard.
-Nick aka NS1 aka mopey aka speedbump

Alpine CDA-9827

Crossfire CFQ5.2

JL Audio XR 650csi components, Planet Audio TT2300

Crossfire VR404 on factory rear 6x8's until I get them upgraded

SI 15D2 + 3.8 @ 30 hz + Crossfire BMF 1000D = :)
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tooloud
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Location: Vicenza

Postby tooloud » Mon Sep 01, 2008 2:26 pm

thanks!!! by the way, do you know if a RE Audio team exists?
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emperorjj1
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Postby emperorjj1 » Tue Sep 02, 2008 4:28 am

don't think so officially. ask usampsfreak
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