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Old 07-27-2011, 12:29 PM
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Default Need help with a 4th order.

Alright guys. I need some help designing a 4th order for my 12 in t3 t2000. Itll be in the trunk of a 95 civic and run off 1200w...
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Old 07-27-2011, 12:32 PM
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External dimensions, and goals for the system would be a good place to start.
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Old 07-27-2011, 12:41 PM
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18h x 36w x 30d

Goals are just a low daily system. Just looking to try out something new
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Old 07-27-2011, 12:50 PM
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I get 9.388 cubes internally, assuming .75" walls. That should be plenty to shoot for something like 1 cube sealed, and say 4 cubes ported, tuned around 50hz or so.
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Old 07-27-2011, 12:56 PM
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Do you do designs? I was thinking bout trying to shoot the port up through my rear deck
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Old 07-27-2011, 12:59 PM
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I havnt checked the specs but im pretty much going to tell you a 4th wont be too great of a choice for that sub. It may flatten out okay due to the odd gain youll get off the rear windshield, but there are better choices provided you have the space.

Shoot me a PM if you dont mind paying for a design.
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Old 07-27-2011, 01:26 PM
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Quote:
Originally Posted by ClickClickBoom View Post
Do you do designs? I was thinking bout trying to shoot the port up through my rear deck
Not in awhile. I'm pretty busy with other stuff, and only get online while I'm at work. It shouldn't be too hard to draw up a design for something simple.
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Old 07-27-2011, 06:14 PM
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Quote:
Originally Posted by 98AckCL23 View Post
Not in awhile. I'm pretty busy with other stuff, and only get online while I'm at work. It shouldn't be too hard to draw up a design for something simple.
So... Is that a yes or no? Haha I honestly have no idea what to do when it comes to designing boxes
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Old 07-27-2011, 08:44 PM
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I get 9.388 cubes internally, assuming .75" walls. That should be plenty to shoot for something like 1 cube sealed, and say 4 cubes ported, tuned around 50hz or so.
You really think a 1:4 sealedorted ratio? I have heard somewhere around 1:2ish is usually used
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Old 07-27-2011, 08:48 PM
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You really think a 1:4 sealedorted ratio? I have heard somewhere around 1:2ish is usually used
My 4th order was 1:4, tuned in the mid to high 60's (probably around 65 or so) peaked at 52hz, would play down to 38hz no problem, and did mid 142's with 2 10s on ~600-700w clamped power...
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