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Joined: Apr 2002
Posts: 2,023
Hard-core CEG'er
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Hard-core CEG'er
Joined: Apr 2002
Posts: 2,023 |
I'm not joking, I know math...I don't know audio. 
-Giovanni
One turbocharger. Two intercoolers. All love.
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Joined: Sep 2000
Posts: 4,789
I feel Guilty, Oh so guilty
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I feel Guilty, Oh so guilty
Joined: Sep 2000
Posts: 4,789 |
I'm guessing your are probably using WinISD to come up with the numbers you are using, but there is a danger to using box modeling programs for a car. Transfer function can wreak havoc with those nice flat freq response curves, plus the golden ratio doesn't really apply to subwoofer enclosures, its very important for midrange apps.
"If you are flammable and have legs, you are never blocking a fire exit"
-Mitch Hedberg
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Joined: Aug 2002
Posts: 29
New CEG\'er
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New CEG\'er
Joined: Aug 2002
Posts: 29 |
Originally posted by 2G Sport:
Geoff, maybe a box similar to mine with the third sub where one of my amps is (in the front)? Do you want sealed or ported? How much room are you willing to sacrifice? Any particular sub you had in mind?  I don't think 3 12s would fit this way w/o being at an angle.
YES, that is exactly what I want. I have a sealed box now.. what would ported sound like? I think 3 12's would fit across... hehe i'll make that work. I just need to know how to make that box. I'm thinking about JL subs, would it matter since they are aimed towards the front instead of the rear like mine are now? geoff
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Joined: Sep 2000
Posts: 4,789
I feel Guilty, Oh so guilty
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I feel Guilty, Oh so guilty
Joined: Sep 2000
Posts: 4,789 |
Ported would be at least 2x as large and will have quite a bit more low bass output. SQ can be roughly equal to a sealed enclosure if built right, but they are not easy to tune correctly and it will take some experimentation to get right.
"If you are flammable and have legs, you are never blocking a fire exit"
-Mitch Hedberg
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Joined: Feb 2002
Posts: 4
Newbie
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OP
Newbie
Joined: Feb 2002
Posts: 4 |
ok so i need to built a box that is 18" wide 30" long and 11" in depth. is this correct. i appreciate the help.
95 contour (All the usual mods and then some.) Trying to sell four wheeler so i can buy turbo.
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Joined: Jul 2001
Posts: 7,100
Addicted CEG\'er
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Addicted CEG\'er
Joined: Jul 2001
Posts: 7,100 |
3 12's WILL fit without angling... I have a tri-Visonik box.. Two are facing forwards, and the center one is inside a seperate "box", facing backwards and ported.
Fits perfectly.. about 1 foot of space between box and trunk latch..
Ray
'99 CSVT - Silver #222/276
In a constant state of blow-off euphoria.
Originally posted by Kremitthefrog:
I like to wear dresses and use binoculars to watch grandmas across the street.
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