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Old 11-04-2013, 10:28 PM
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Default Box design for 4 American Bass XFL 12s

I need a box designed for 4 American Bass XFL 12s. The box will be going in a 99 Suburban. Subs will be powered by two Sundown 1500s. I have two 6 inch aero ports that I can use if they provide enough/not too much port area. If those won't work, I can slot port, or buy different aeros, but I'd like to keep the cost down. I want the box tuned to around 35Hz. Box size is 45 wide, 26 tall, and you can adjust the depth as needed. I'd like to save as much room as possible, so I'd like the size to be on the small side of the recommended air space. I want the subs to fire back and the ports up if possible....maybe side would work too, but not much clearance there. I'm not sure what box design cost, but I'm willing to pay a fair, reasonable price.
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Old 11-05-2013, 08:41 AM
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Contact vitveet on here... Great guy does good work... And he's local..
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Old 11-05-2013, 09:43 AM
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Op if you need any building done im in lower Sc, 2 6in ports wont be enough for those subs. but with that power i wouldnt be afraid to go 8 cubes with 140ish sq in of port.
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Old 12-04-2013, 11:38 PM
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So I know the 8 to 1 rule for width to height ratio for slot port , but I don't think I can follow that. I'm thinking about a slim port running the entire length of the box firing backwards. The port would be roughly 3" tall and 43.5" wide running along the bottom of the box. I'm pretty sure I'll go with an 8 cubic foot box after displacement etc. My question is should I go with 3"X43.5" port yielding about 16 square inches of port, or should I go bigger with a 3.5" or maybe even 4" X 43.5" port yielding 19/22 square inches of port. I think I understand that the 8 to 1 ratio is because of resistance with the airflow, so my thinking is that maybe I should increase the port area because of this. Does any of this make since, or should I go with just two 6" aeros? With my box dimensions, I can't really fit 3 6" areos because they would have to bend.
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Old 12-05-2013, 12:02 AM
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2 8" round ports would work out better. Could even oval them a little if needed to make them fit within your design.
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