which enclosure size to follow?

[enerlevel]

the woofer is a 04kickerL7 15"


On the kicker specs , there is a box which is 6cubicfoot and fb is 30hz. along with the cutout dimensions.

but when i add in the same dimensions to bass boxpro6 , the fb it shows is 35.67hz :S

so which one is correct? and which one should i follow if i had to fine tune the size abit?

[ricky_db]

well i dont know which one is correct but kicker proberbly accounted for speaker displacement in their specs

[enerlevel]

yes i copyed exactly wat the kicker specs told me to which includes speaker displacment , 3/4 wood , port displacment etc still there is a huge difference of kicker specs showing 30hz and bass box pro6 showing 35.somthing hz.