looking to build a box for 2 RE SXX 12's feedback please!

[coolio3800 10+ year member]

Re audio SXx 12" 1000W rms 4 ohm dvc

so i went on the website for the subs and found the box should be tuned to 33hz which i have no idea how to do (problem 1). the optimal space is 2.0 ft^3 per chamber. is that before or after displacement of the sub? (problem 2) the rough dimensions that i got for the box are 31.75W x 20H x 11.75 D. that was with a "golden rule tool". is there some calculator or something that can build me a virtual box? i know i need a spec box for these subs but it's a little over my head, any feedback or comments would be greatly appreciated.

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[DukeNut 10+ year member]

re audio has a box program at LPort Box Calculator - RE AUDIO

 

[pro-rabbit 5,000+ posts]

re audio has a box program at LPort Box Calculator - RE AUDIO

It is not accurate though.

 

[coolio3800 10+ year member]

thanks, can i use it to make a single port box but still use two subs? or does the box need to be dual chambered with separate ports?

 

[pro-rabbit 5,000+ posts]

You only have 3.3ft3 of available space after wood displacement but that is before sub(s)/port. In short, you do not have enough available space for two.

 

[coolio3800 10+ year member]

well im going to make a bigger box, i messed around with the dimensions and have about 4.1 ft^3 after port displacement. their optimal space is 2.0 ft^3 per so that should work right? to avoid the sub displacement i'll just do a reverse mount or increase the box size just a bit