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LOW ET
06-29-2008, 05:26 PM
what does port tuning mean? i just got done building the 12w7 ported enclosure that jl recommends and it says recommended port tuning: 32hz.

Random1010
06-29-2008, 05:26 PM
it means that what the box is tuned to..

dumpin907
06-29-2008, 05:28 PM
i thought JL says 35 hz for the w7?

dumpin907
06-29-2008, 05:31 PM
Tune to:
(Hz) 36.7

actually it says ^^^^

LOW ET
06-29-2008, 05:34 PM
in the owners manual it says 32hz, http://mobile.jlaudio.com/pdfs/557.pdf. on this page it says 36.7hz, http://mobile.jlaudio.com/products_subs_enclusure.php?series_id=9

dumpin907
06-29-2008, 05:40 PM
down by enclousure recommendations it says 30 hz....

LOW ET
06-29-2008, 05:41 PM
down by enclousure recommendations it says 30 hz....

you're looking at the 13w7

dumpin907
06-29-2008, 05:44 PM
you're looking at the 13w7


oh my bad...you have pics of your box?

im probably makin mine today for my w7 12

LOW ET
06-29-2008, 05:45 PM
oh my bad...you have pics of your box?

im probably makin mine today for my w7 12

not yet. i wanted to carpet it before i take pictures. all the glue is drying right now.

dumpin907
06-29-2008, 05:47 PM
right on, how much mdf? like half a sheet? i have like half a sheet left over from my last box build that i hope will work

LOW ET
06-29-2008, 05:53 PM
i used two 4'X2'X.750" and two 4'X2'X.500" sheets to make the box. i had left over wood after all the cutting was done. i glued the two .500" sheets together to make the 1.000" front baffle. everything worked out great. hell, i even routered the begining edge of the port inside the box to get that nice rounded edge. i also used t-nuts for mounting the sub so there will be no stripped out screw holes.

dumpin907
06-29-2008, 05:54 PM
i used two 4'X2'X.750" and two 4'X2'X.500" sheets to make the box. i had left over wood after all the cutting was done. i glued the two .500" sheets together to make the 1.000" front baffle. everything worked out great. hell, i even routered the begining edge of the port inside the box to get that nice rounded edge. i also used t-nuts for mounting the sub so there will be no stripped out screw holes.

word. did you do the cuts yourself?

LOW ET
06-29-2008, 05:55 PM
yes, on a radial arm saw.

dumpin907
06-29-2008, 05:58 PM
nice. what did you tune yours to?

LOW ET
06-29-2008, 05:59 PM
nice. what did you tune yours to?

now did you read the title of this thread?

i have no clue. i built the box to jl specs and it is what it is. now i started this thread to find out what port tuning is. since i built the box the way they wanted i assume it's tuned to 32hz.

dumpin907
06-29-2008, 06:03 PM
yeah then yours is 32hz if you made the cuts correctly. your box should allow you to hit the lows.

LOW ET
06-29-2008, 06:06 PM
yeah then yours is 32hz if you made the cuts correctly. your box should allow you to hit the lows.

haha, what do you mean if? my cuts/measurements are dead on! it turned out better than expected.

dumpin907
06-29-2008, 06:09 PM
well congrats then. that should be a really effecient box. you will slam the lows and still hit the mids and highs. i wanna see pics though!

LOW ET
06-29-2008, 06:12 PM
i'll get them up once the carpet comes. it may be for sale to go with the 12w7's i have for sale, or maybe i'll have to install it in my car. here's a link to my stuff: http://www.caraudio.com/forum/showthread.php?t=263105

i also made some mounting rings for 12w7 fiberglass enclosures.

dumpin907
06-29-2008, 06:15 PM
i'll get them up once the carpet comes. it may be for sale to go with the 12w7's i have for sale, or maybe i'll have to install it in my car. here's a link to my stuff: http://www.caraudio.com/forum/showthread.php?t=263105

i also made some mounting rings for 12w7 fiberglass enclosures.

yeah thats where i saw your stuff and PM'd you. unfortunatly right now i have too many subs and need to sell some before i want to buy more stuff you know. i have a w7 12 on the way though.

LOW ET
06-29-2008, 06:22 PM
here's the rings

http://i233.photobucket.com/albums/ee302/msv4777/IMG_0551.jpg
http://i233.photobucket.com/albums/ee302/msv4777/IMG_0552.jpg

1" thick with step to staple the grill cloth on and build up the fiberglass.

dumpin907
06-29-2008, 06:28 PM
lookin nice man

LOW ET
07-02-2008, 05:32 PM
here's the jl spec ported box

http://i233.photobucket.com/albums/ee302/msv4777/IMG_0560.jpg
http://i233.photobucket.com/albums/ee302/msv4777/IMG_0563.jpg
http://i233.photobucket.com/albums/ee302/msv4777/IMG_0561.jpg
http://i233.photobucket.com/albums/ee302/msv4777/IMG_0564.jpg