Please help with enclosure!

[Virindok 10+ year member]

Hey I am trying to build a new ported box for my 8" Sundown Sa-8 and could use some help.

Specs of sub here: SA-8 D4 - Sundown Audio 8" Dual 4-Ohm SA Series Subwoofer

I am trying to tune it to between 30-34 hz and keep it around .8 cubic foot. Woofer displacement is .1.

This is what I've come up with so far.

Max dimensions width = 26, depth = 14, height = 13.

It's almost 1 cubic foot and tuned to 34 hz, according to this calculator.

Anyone have any suggestions? Know a better site for this?

Thanks!

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[Phoenix Risen 10+ year member]

that doesnt look bad, but the port in the pic looks really small

 

[Buck 5,000+ posts]

Did you make the port 1.2" wide? You want to stick with quarters, so you can build the box. Like 1.25, 1.5, 1.75...

 

[Vossy 10+ year member]

Check out aeroports while you're at it.

 

[Virindok 10+ year member]

thanks for the tips guys. anyone know a program similar to this one that will also allow for a third port wall?

thanks

 

[RAM_Designs 5,000+ posts]

Your tuning will bump up to 36hz after to count your .1ft^3 sub displacement.

 

[Virindok 10+ year member]

Thank you for response, I don't know why I didn't even consider that - I forgot this calculator didn't ask for driver displacement.

How can I find out how much square port area I should have? I made some changes but am still at 13.125 - is that enough?