problem with tuning

[littledude 10+ year member]

im kinda confused on what my box is tuned to.. im using three different programs, winISD pro, and 2 online calcs. my outside dimensions are 22"high by 40"wide and 21.2"deep the port is 6"wide by 20.5"tall and 13.3"deep winIsd says 35hz and thats what i want, but i just wanted someone to make sure its tuned right.

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[littledude 10+ year member]

anyone?

 

[BJ The Man 10+ year member]

you have to remember to calculate sub displacement into the RE one. thats probably why they would come out different.

 

[SeanDub 10+ year member]

You need to read the box design tutorial in the enclosure and design forum section. It is stickied at the top