Sub box size Please help!!

[carlos_320i]

I have a old JL 12w0.4 sub that I need to build a ported box but I haven't got a clue what size I need and what size port I need.

If any of you can help me out I will be most grateful

Many thanks

Carlos

[lenny-d]

do you have the leaflet

i've a 10w3 and the port runs a 1/3 across the back and up the side

ported boxes are louder but i'd recomend a sealed boxfor better quality cause i've built both sealed and ported boxes for my sub, sealed every time

[lenny-d]

just found this


http://mobile.jlaudio.com/pdfs/12W4_BDS.pdf

good luck

[carlos_320i]

So you say sealed is better

But what do you get more bass out of???

[lenny-d]

ported will be louder but the bass wont be as crisp where you get a good thight bass from a sealed box

lenny

[chu346]

just found this


http://mobile.jlaudio.com/pdfs/12W4_BDS.pdf

good luck

That's the wrong one, that's for a 12w4 and he has a 12w0 4ohm.

http://mobile.jlaudio.com/pdfs/10_12_15W0_MAN.pdf

[carlos_320i]

Thanks mate so that is the right one I will get to work now

[carlos_320i]

That list is saying I need a 13.6" port well I have looked around and cant find one larger than 5"

has anyone got any ideas

Many thanks

[chu346]

you need 4" diameter by 13.6 length

get some from a plumbing centre

[kam325itouring]

use a sealed box, jls run better sealed, my w3 is in a 1 cuft box. and subs last longer too!!!!!!!

[cliffybabe]

1 cubic foot sealed mate, thats what im running with my jl's in my merc and and its wicked

[carlos_320i]

Not to sure what to do as I want loads off bass but I have to be careful on what size box it is

[chu346]

Either make a ported box by the jl design or buy another sub to go with it and do it sealed. You'll get the same output but your pocket will be abit emptier.