Couple of Port Questions

[Hintzyboy 5,000+ posts]

OK, I'm hoping to build my new box this week, but I have a few questions for you guys before I get started.

First off, the box is for a 12" TC9. After sub displacement, I have almost exactly 2 cubes. I'll be using aeroports to make it a bit easier and to save some volume. TC recommends a single 4" port for the 12" TC9. Does anyone know if this is going to cause port noise? I'd like to avoid a second port if I can because I have a set amount of volume to work with and each added port takes volume away from the box. With a single port, I can still have around 1.9 cubes after sub and port displacement, but I'd be down to about 1.6 cubes with an extra 4" port (if all my calculations ar right).

Secondy, I need to know where I can buy aeroports. I've only ever seen them pop up sporadically on ebay and in the classifieds here. Any store or website where I can get them??

Thanks guys,

Aaron

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[rpfuror 10+ year member]

partsexpress.com

but based on the readily available calculators and the ts parameters of that driver your min port dia is ~7" @ 32hz, so you may want to use 2 4" ports.

 

[Hintzyboy 5,000+ posts]

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[tcguy85 10+ year member]

yea i used a 4" on a ten inch woofer and it made a lot of noise, now i have a 10.5" x 2" which is 21sq inches and i have no port noise and the sub sounds a lot better and gets a lot louder. so i would say use 2 4" ports or at least 1 6"