ssa's ported box calculator

[Lucky 76 5]

how does it measure the frequncy of the port if it does not know the displacement of the sub?

[Basshead 3]

since net volume plays a role in the frequency, it'll just calculate the port with the total net volume of the box. sub displacement will change the net volume slightly which will in turn change the net volume. i have never used the ssa port calculator, so i would either guess it takes out a set amount for sub displacement automatically, or just has zero in for sub displacement which i think is more likely

[Lucky 76 5]

so i should be alright with the frequency i tuned it at then if it only brings it down a little bit

[Lucky 76 5]

it is only a 1.2 cu ft box tho so will it be effected more

[johnecon2001 82]

Sub displacement is usually so minimal, it won't change the sound noticeably.