Hairtrick port area?

I would say a 1x15 inch port should get the job done, depending on the subs you use that is............//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 
The larger the port the more air displaced. It will also have to be longer to get to a given tuning frequency. It is a trade off with space and displacement. Also, larger ports will have less port noise.

Or to be put simply: go a big as you can while keeping the desired net volume of the enclosure.

 
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