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Big ports


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From what I understand big ports are to gain more output. What exactly is meant by output? I'm assuming It applys to spl. In a non-spl setup are big ports important? Also is there a way to figure out how much or what size a port should be based on each sub requirements then using standard guide lines?

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I would ask the manufacturer what they recommend. You're not going to have a universal answer for this.

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Not having enough port area will hurt the output(sound level) of the port, but it will also cause port noise and compression, which you really do not want.

There is a way to figure out how much port area you need. Here is an online calculator that uses Small's formula to determine how much port area you need:

http://www.carstereo.com/help/Articles.cfm?id=31

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