Need Ported Box Designed

[Alpine CDA-9815 10+ year member]

Alright, I've need designed a ported box befor and I need someone to help and or design one for me. I'll pay to have it done if needed.

Anyways the sub is a 12" Fi Q. Box specs for what I have to work with are H-18" | W-36" | D-9", with using 3/4" MDF that works out to 2.471ft^3. I have no idea on what port area size should be used, if it needs bracing, etc. I would like it tuned to 33Hz.

Thanks //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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[Alpine CDA-9815 10+ year member]

Ok... I think I got it, I just need to know should I go with 2" or 2.25" for the port width?