Fi BTL 18s wall box help

[adam43633]

i am going to be building a wall for my 2 fi btl 18s on 2 2400 watt hifonics brutus amps at 1 ohm.

What is the difference between a wall that is

12 cubic foot and 130 square inchs of port area tuned to 30HZ

VS

16 cubic foot box with 200+ square inch of port area tuned to 30HZ

[john253a]

Are they n2 or n3

That makes a difference

Idd aim for 16cuft net 250-260sq in port for n2

And 20cuft net 310-320sq in port fo n3

If you can give a gross or size box

People may be able to help more

[adam43633]

N2s.i plan on getting a box design from RAM designs

[john253a]

plenty of experience there good choice