Does this look about right?

[2007g6]

Sub Specs

12"

Fs: 30.75

Qms: 6.759

Vas: 67.7

sd (m2): 0.0504

Qes: .692

Qts: 0.545

SPL: 87.2 1w-1m

rms: 500

Each sub will be getting 450w rms. According to manaul for manufacture, ideal box is 3.5ft^3 so i got that covered. One thing im not sure of is port area. Do i have enough of it? To Much? All in all would this box work well?

Thanks

[Guest]

you see those two ranges of numbers right above Port Area on the lower right hand side? yeah...you should be able to judge for yourself then

everything else looks good though

[2007g6]

if that number fits in that range im golden then? ive never designed a box before just been doing some researching.

[Guest]

yeah you'll be fine

edit: i'd put some dowel rods or something in the box for bracing, just in case

Edited February 27, 2012 by Kranny

[carshateme]

Lol looks like krannys on his f5 spree again.

[SnowDrifter]

That's plenty fine for that power level

[Joe X]

Sub Specs

12"

Fs: 30.75

Qms: 6.759

Vas: 67.7

sd (m2): 0.0504

Qes: .692

Qts: 0.545

SPL: 87.2 1w-1m

rms: 500

Each sub will be getting 450w rms. According to manaul for manufacture, ideal box is 3.5ft^3 so i got that covered. One thing im not sure of is port area. Do i have enough of it? To Much? All in all would this box work well?

Thanks

If when you say: "each sub" you mean that the box is for more than one sub then your internal volume is wrong.

[2007g6]

each sub displaces .15ft^3. Double that for 2 subs and thats where i got my .3 for sub displacement. So i assume my calculations would still be right then?

[Joe X]

Yes are right, I would set the port area a bit higher if you can afford a little bigger box like 13-14.

[2007g6]

so after doing some more thinking how true is this?

The general rule of thumb is an EBP of 50 or less = a driver that is best used in a sealed enclosure. An EBP of 50 – 90 gives you flexible enclosure type options. An EBP of 90 or higher is best used in a ported enclosure.

This sub has EBP of 44. Should i stick it in a sealed box? Also the dimensions i used earlier were max i cant go any larger in fact i might have to decrease the depth by inch or 2.