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  #1  
Old 09-18-2011, 08:36 AM
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Default Need Help From Experienced No Wall Box Builders

Experienced No Wall box builders:

I have 4Skar Audio VVX 12's in ~7 cubic feet on 3kw.
They move pretty damn close to XMECH with the current box.

What would you recommend in order for me to add my second AP 3000?

I know this isn't the most efficient box, and I resent that, but it's done everything I've asked of it.

Current box Specifications:
7 Cubes Net with Displacements +/- .2 cubic feet
8 4in PVC Ports 23in long
All 8 open = 39hz (~100 sqin of port)
Block off 4 for my daily tuning of 28hz

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Last edited by Bigpimpin91; 09-18-2011 at 08:40 AM.
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  #2  
Old 09-18-2011, 08:42 AM
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why not try less number of aeros, just bigger aeros.
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Old 09-18-2011, 08:46 AM
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Quote:
Originally Posted by ltr450racer690 View Post
why not try less number of aeros, just bigger aeros.
This has already crossed my mind.
Especially for numbers.

But, please explain how this will help the excursion issue?
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Old 09-18-2011, 08:49 AM
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idk how much i would he the xmas prob. but def would help make the box more effiecent. then needing less power to do that
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Old 09-18-2011, 12:56 PM
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I would go with a bottom slot port box in my opinion.
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Old 09-18-2011, 01:00 PM
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Where do the subs have crazy excursion? On the upper punch, or the low(bottom) end?
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Old 09-18-2011, 01:13 PM
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Turn the gain down, turn the volume down, make box smaller. You wanna give 1500watts to a 600watt sub
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Old 09-19-2011, 02:08 PM
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Quote:
Originally Posted by surreal View Post
I would go with a bottom slot port box in my opinion.
I planned on it, but this still doesn't help with the issue at hand.

Quote:
Originally Posted by Novicaine View Post
Where do the subs have crazy excursion? On the upper punch, or the low(bottom) end?
It depends on what tuning, really.

At 28hz tuning, they move a **** ton @ 33hz and above.
They move less than half of that all the way down to 23hz.

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Turn the gain down, turn the volume down, make box smaller. You wanna give 1500watts to a 600watt sub
This is America, we give everything too much of everything.
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Old 09-19-2011, 02:59 PM
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Smaller box less port area using one larger diameter port

10" flared would work well
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Old 09-22-2011, 10:45 AM
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Anymore input?
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