Questions for custom box for 3 12's

[Tundra_jim 10+ year member]

I'm building a custom box to fit in my tundra to hold 3 type r 12's. My question is just on port size/length.

Box is going to be 6cf total, 2 per sub. This is factoring in the displacement of the speakers, and some bracing.

will 3 4" aeroports (one per sub) be enough, or will I still get some port noise?

If I do go with 3 4" ones, shouldn't 12" long give me around 33-34hz?

I'm definitely open to ideas, feedback, advice... whatever you have to offer...

Thanks,

Jimmie

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[Tundra_jim 10+ year member]

bump

???

 

[PhatTonyDeMarco 5,000+ posts]

I would do more port area, 2 4inchers per sub or a single 6 (aero ports that is) Or do a slot port with ~90 sq inches of port would work as well.

 

[Tundra_jim 10+ year member]

Slot port is almost impossible due to the shape of the box... I considered that. The deapth also varies, so my port deapth is somewhat limited.

The baffel that the subs will be mounted in is only 20x36... If I went with 2 15's I could probably do 6" ports, but I'm up in the air on that one. I like 12's better... we'll see....