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Old 10-02-2011, 03:43 PM
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Default I can't figure out this port! Help please

Alright, I'm having trouble getting the amount of port area I need with the tuning I want. So I figured I should post this here and see if you guys can help me. This is the overall design. I need 4 cubic feet per sub (theres 2) and 180-200sq inches of port for a slot port. If someone could tell me if its even possible.
I noticed I left out a dimension and thats the top parts height which is 11 or could go to 12 if need be.


Would like to be tuned around 30-34hz
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Old 10-02-2011, 04:23 PM
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if you have 8 cubes net (4 for each sub) and want 180-200" of port, you're going to have 22.5-25" of port per cubic foot. may i ask why you NEED that much port?
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Old 10-02-2011, 09:29 PM
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Thats what I was told by the guy building my subs. They are DD 3500 series motors with Sundown Z 18" soft parts. He's built tons of boxes with great results so I trust him.
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Old 10-02-2011, 11:08 PM
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Quote:
Originally Posted by DylanH View Post
Thats what I was told by the guy building my subs. They are DD 3500 series motors with Sundown Z 18" soft parts. He's built tons of boxes with great results so I trust him.
well have him design the box because thats an insane amount of port.
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Old 10-02-2011, 11:17 PM
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He's been pretty busy lately so I figured I would try to see if someone else could help me that way he could work on something else.
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Old 10-02-2011, 11:19 PM
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i dont see what you need anything near that amount of port. honestly doesnt make sense. it is just 2 subs and 4 cubic feet net for each correct?
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Old 10-02-2011, 11:21 PM
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Yup, 8 cubic feet after all displacements is the goal.
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Old 10-02-2011, 11:29 PM
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than to me, unless you're buiilding a competitino box, i would go over like 135" of port TOPS. and thats still over 16" per cube. id say anything from 120-135 would be good
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Old 10-03-2011, 12:14 AM
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I'm looking for a great daily driver that will get loww. But now that midwest spl finals are over he should be a lot less busy
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