building a box, need advise on ports

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Mar 28, 2006 | 06:40 AM

05colorado

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building a box, need advise on ports

i'm doing a generic ported box for 2 rockford fosgate hx2 15's (1999 model)
the box is about 5.50 cubic feet and I am going to be using 2 4"ports 7.5" long.how far away can i place the port from the sub & ive heard that having a bend or elbow is important to reduce port noise is this a myth???

is there anything you guys would change

cheers

Mar 28, 2006 | 07:00 AM

hofulstrof

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i would say adding bends could only increase the chance of port noise because you want the air to flow as smoothly as possable through the ports.

Mar 28, 2006 | 03:20 PM

05colorado

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cool man, I also wanted to know if its better to position the subs in a downfiring position if possible. and in that case should the ports fire in the same direction

Apr 7, 2006 | 09:47 PM

jimmyslide

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Preferably fire the ports the same way as the subs...if at all possible anyways. Firing down isn't necessarily a good thing. I like firing down in jeeps, but in a colorado I would fire up or straight at the back of the seat. Up if possible.

Shawn