enclosure help needed

[Fifty-Three]

I have a 2007 crew cab

The set up is currently a center console that holds 4 boston g5 12s

the box is a sealed, single chamber that gives each woofer 1.2 feet.

the internal area is 4.8 feet

the dimensions are 58.5"x13"x11"

the system hits hard....really hard....but doesn't have the vented/ported sound, and the box is lightly packed with polyfill

if everything is right, its currently tuned to 28-33hz

my question is.

i'm strictly limited to these dimensions, is there anyway i could possibly port this box to tune it to 40hz? and make it hit even harder?

i know the 12s are more than capable or hitting alot harder than they currently do.

[Fifty-Three]

?

[Miakehl]

I have a 2007 crew cab

The set up is currently a center console that holds 4 boston g5 12s

the box is a sealed, single chamber that gives each woofer 1.2 feet.

the internal area is 4.8 feet

the dimensions are 58.5"x13"x11"

the system hits hard....really hard....but doesn't have the vented/ported sound, and the box is lightly packed with polyfill

if everything is right, its currently tuned to 28-33hz

my question is.

i'm strictly limited to these dimensions, is there anyway i could possibly port this box to tune it to 40hz? and make it hit even harder?

i know the 12s are more than capable or hitting alot harder than they currently do.

wat?

[t-money]

might have to loose a sub to gain volume. cuz as u no. u need more box volume for a ported box