Need pro's advice on enclosure

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driverswanted

Member - Posts: 8

Joined: January 04, 2006

Location: United States

Posted: February 08, 2006 at 7:03 PM / IP Logged

Just make sure, as far as the length goes, that you're measuring in the center of the port. For example, the port turns 90 degrees right in the middle. You'll be measuring 14.5 inches (29" divided by two) in the center, whereas the outside of the port will measure 15.25 inches on either side of the angle, and the inside of the port will measure 13.75 inches on each side.

example (measure the red line)

Need pro's advice on enclosure - Page 2 -- posted image.

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bellsracer

Silver - Posts: 703

Joined: January 14, 2006

Location: United States

Posted: February 08, 2006 at 7:12 PM / IP Logged

downstarinc wrote:

can the ports be at any angle...meaning, can you make them in a shape as an L?? I need a long port without that much space..

from PM: I just noticed that the measurements u gave for the port was only for one port..i have 4...would that mean i would double up the width?? would 2 ports at 3wide 12.5 long and 29 deep each be good?? and what freq. would it be tuned at?

No you cannot do that. That port is completely out of range for these subs and would actually damage them if used. We looked at the link you gave us and the kickers in that are in the pics are made to work in a common box. The JLs that you guys have cannot do that. They each have to have their own division on the box. You can pseudo the ports together. We'll post a rough plan up asap for you. The frequency the ports are tuned allow for up to 80 Hz approximately. If we read our notes properly, the port will allow for 30Hz(possibly 26) to 80Hz before it starts to flutter.

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downstarinc

Copper - Posts: 119

Joined: October 22, 2005

Location: United States

Posted: February 09, 2006 at 12:13 AM / IP Logged

well im starting to glass the trunk tomorrow (the base) but i really wanna go ported..(bellsracer) your help is greatly appreciated...just to remind, 4 12" jl audio w6v2's...thanks!

jl audio..nuff said

no0p

Member - Posts: 14

Joined: February 01, 2006

Posted: February 09, 2006 at 12:46 AM / IP Logged

downstarinc wrote:

well im starting to glass the trunk tomorrow (the base) but i really wanna go ported..(bellsracer) your help is greatly appreciated...just to remind, 4 12" jl audio w6v2's...thanks!

a little off topic.. but 4 12's are going to hit hard! I used to have 3 12 w6 the original not v2 running off of a ppi 21400 in my 2000 caddy sts that used to hit hard! good luck on your project, hopefully I can start glassin my box soon as it warms up for my 1 12'' w7

reppin' clublexus!

downstarinc

Copper - Posts: 119

Joined: October 22, 2005

Location: United States

Posted: February 09, 2006 at 2:21 AM / IP Logged

it hits hard already..but its all box..so imma make it all purrdy..hope it still hits hard tho.

jl audio..nuff said

sk8ingsmurf

Copper - Posts: 198

Joined: March 18, 2004

Location: United States

Posted: February 09, 2006 at 3:24 PM / IP Logged

Hey downstarinc, sorry that I havent responded in a few days. I know you may have already started on this so hope I reached you in time, just a few quick questions, roughly what size is the box, and any idea what frequency you would like?

downstarinc

Copper - Posts: 119

Joined: October 22, 2005

Location: United States

Posted: February 09, 2006 at 5:16 PM / IP Logged

Need pro's advice on enclosure - Page 2 -- posted image.

jl audio..nuff said

downstarinc

Copper - Posts: 119

Joined: October 22, 2005

Location: United States

Posted: February 09, 2006 at 5:26 PM / IP Logged

i think maybe a freq. of like 30's or so...i want a sql/spl system

jl audio..nuff said

sk8ingsmurf

Copper - Posts: 198

Joined: March 18, 2004

Location: United States

Posted: February 09, 2006 at 5:30 PM / IP Logged

haha well thats a different response than I expected downstar, are all four subs gonna be in the same enclosure, or are there going to be baffles in between each sub? Ill work on trying to calculate the interior volume of this for now...

downstarinc

Copper - Posts: 119

Joined: October 22, 2005

Location: United States

Posted: February 09, 2006 at 5:54 PM / IP Logged

if they could all be in the same enclosure that would be better...well whatever you recommend for a freq., i want it loud and clean..

jl audio..nuff said

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