Good enough for me.
That link sure does help. For a 29Hz F3, you’ll need 1.75 CuFt and a 2″Dx2″L port. Thing is, that’ll be down -3dB already, then down another 3 for F3. That’s why they want wall gain. If I can approximate the percentage difference in the other boxes, I can grab those #’s as well. Or if someone wants to give the sizes a shot, post ’em here and I’ll run ’em quick.
