Level 5 18"

[Megavanman 2]

hey im gettin a level 5 18" and im going to b putting 4000 watts to it does anyone know how big of a box i should use to get max power out of the sub

[RustyWCA 0]

5-8 cubes with 15 si of port per cubic foot of box =]

[KU40 173]

Boxes don't make subs make power.