Bass Box Pro or WinISD?

[bikinpunk 10+ year member]

I'm using both, and I keep getting a very large discrepancy. When trying to figure out length for the same internal volume, my calculations give me this:

Side A 12.00

Side B 13.00

Desired Internal Volume 3.00

Gross Internal Volume 3.23

Side C (unknown) 35.75

Bass Box Pro gives me this:

12

13

47.87

Anyone care to reason why?

My calculations are done in excel.

Gross*1278/(12*13)= 35.75

My gross is 3.24 in BBP & 3.23 in Excel. So those are almost the same.

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[neonrt 10+ year member]

are those internal dimensions? they must be to get that much intenal volume.

to get a 3.23 gross internal volume you missign dimension must be 35.75 inside the box.

 

[jcbabb 10+ year member]

It may have been just a mistype, but you have 1278 instead of 1728 on your typed equation.

The Bass Box Pro dimensions you listed are EXTERNAL. One you subtract for the width of the wood, you get the same IV(~3.2).