Well, it’s been a while and I’m rusty on the boxes, but this is what they calc out to:

cut low 20Hz
cut high 98 Hz
frt box vol 0.284 CuFt
rear box vol 0.779 CuFt
Total Box Vol 1.063 CuFt
Frt Box Freq 50.4Hz
6″ port 33.73″ long

cut low 20Hz
cut high 62 Hz
frt box vol 0.827 CuFt
rear box vol 1.768 CuFt
Total Box Vol 2.595 CuFt
Frt Box Freq 36.4Hz
6″ port 27.75″ long

Here’s a link to an explanation of the calculation process, which I think I’ll have to sit down and read over to give me a refresh on it all, and to verify my program.

4th order bandpass calculator – With box design example

Now on to Thanksgiving preparations.

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