7.2cu. ft. Enough Space for Ported 18" FI Q?

[snb778 5,000+ posts]

I think it wouuld be 7.2 before Displ. AND Port, (but im using aero to save room) Just wondering if anyone has any experience with an 18" Q, or know anybody who's ran one in a smaller box.. I know FI recommends 6-12cu. ft ported, but thats all I have to work with, so.. WILL IT WORK... The dims would be

36x24x14.25

My next big question is..... I have 4x 4" aero ports that are 10" long... would these work if I wanted to tune to 28-30Hz... I dunno the calculation.

Thx

Click to read more...

 

[Lingerfelt 10+ year member]

Mine was in 6.67 prior to sub displacement. It was very loud, and sounded good.

.02

 

[kicker33 10+ year member]

yes it is.

 

[snb778 5,000+ posts]

ok, then im still lookin for if the 4x 4x10" aero's are enough to tune to 30Hz

lingerfelt, what did you tune to?

 

[Lingerfelt 10+ year member]

ok, then im still lookin for if the 4x 4x10" aero's are enough to tune to 30Hz
lingerfelt, what did you tune to?

34 hertz

 

[snb778 5,000+ posts]

bump.. anyone else. .any input

 

[boalova13 10+ year member]

Should be fine. I've got my bl in a box the same size

 

[snb778 5,000+ posts]

i dunno what a BL requires...

anybody know aeroport tuning though?? what's that website that has it?

 

[snb778 5,000+ posts]

ok, for a 6.5cu.ft box, with 2x 4" aero ports.. I got 9.65" long each... does that sound right??

I wish this site http://www.psp-inc.com/ would tell you how much displacement these calculated ports were.

BL actually has smaller box specs

 

[snb778 5,000+ posts]

bump for the port situation??

 

[dcole18 5,000+ posts]

not enough port area for that sub (two aero ports)

and it looks like none of your ports are long enough if you tried to use all four of them

 

[snb778 5,000+ posts]

not enough port area for that sub (two aero ports)
and it looks like none of your ports are long enough if you tried to use all four of them

according to that site, the less ports I use, the shorter they have to be..... but thats what I was thinking to... so you think I need to get longer ports so I can use 3 of them?

 

[dcole18 5,000+ posts]

according to that site, the less ports I use, the shorter they have to be...

correct... but two 4" ports is not near enough port area for that sub...

 

[snb778 5,000+ posts]

ahhh crap... would a hardware store sell plumbing PVC that's big enough to fit a 4" flare?

 

[dcole18 5,000+ posts]

ahhh crap... would a hardware store sell plumbing PVC that's big enough to fit a 4" flare?

they should... pull the flair off and take it with you... try out pvc pipes untill you can find one that fits