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View Full Version : Is This A bad idea for kicker l7s???? HELP!



*Honda*Bass*
03-14-2009, 04:54 AM
Is putting 2 15in kicker L7 in a 18" height x 36" width x 12 depth vented box a bad idea?

*Honda*Bass*
03-14-2009, 04:58 AM
bump

delvryboy
03-14-2009, 05:06 AM
Whats the port area and length?

Hurry, I only answer 1 audio related question per year these days.

delvryboy
03-14-2009, 05:09 AM
Actually, even without that info, its too small. I wouldn't go anything under 2.5 cubes per, and that's pushing it.

itzme218
03-14-2009, 05:14 AM
that should be the size for 1 S15L7

*Honda*Bass*
03-14-2009, 05:32 AM
yea i know.... the box was all hacked too hell and i fixed it but that the size it had to be. will the subs sound like crap? also is it bad for them?

*Honda*Bass*
03-14-2009, 05:36 AM
.....

DidUHearThat?
03-14-2009, 07:04 AM
It's a bad idea.

Get rid of the kickers. Buy subs that sound better. Build a new box.

Problem solved.

delvryboy
03-14-2009, 02:50 PM
They sound fine. Build a new box.

tymoto21
03-15-2009, 12:41 AM
kicker's dont sound bad at all..... build a good box do 4cf each after displacements and they will slam.

*Honda*Bass*
03-15-2009, 03:15 PM
yea... i plan to do exactly that, but ill have to build the box inside my car.

shakinghorizons
03-15-2009, 03:54 PM
What Vehicle is this going in?

*Honda*Bass*
03-15-2009, 05:14 PM
There going in a 94 Honda Accord LX..... My measuring was a bit off im sure, but it would be possible to build a box for them thats about 8 cubic feet

rickymac21
03-15-2009, 05:23 PM
its gonna be hard as hell to build that box inside your car.. assuming its going in the trunk.. i would suggest doing around 3-3.5 cubes per sub. give it plenty of port area. do aero ports if needed.

*Honda*Bass*
03-15-2009, 07:33 PM
yea your right....need clearence for the screw driver n stuff.

9BlackN*Black6
03-17-2009, 03:11 AM
Ever thought of going sealed?
Ive heard they hit pretty low in a sealed, if space is an issue.

*Honda*Bass*
03-17-2009, 12:33 PM
yea it is..... what size box would you suggest for 2 15" kicker l7's

9BlackN*Black6
03-17-2009, 07:05 PM
yea it is..... what size box would you suggest for 2 15" kicker l7's

Personally Id go with 4 cubes for both, then throw in 4 lbs of polyfil. Id say at least 1.75 cubes per sub. Should have real good SQ too.

*Honda*Bass*
03-19-2009, 07:13 PM
Personally Id go with 4 cubes for both, then throw in 4 lbs of polyfil. Id say at least 1.75 cubes per sub. Should have real good SQ too.

Now the polyfil...thats tricks the sound into thinking the box is bigger than it actually is?

maximpakt
03-19-2009, 07:18 PM
I need to try some polyfill in mine. Mine are in a little over 3.5 sealed and a few songs slam but overall I dont think they are doing what they should.

9BlackN*Black6
03-19-2009, 08:18 PM
Now the polyfil...thats tricks the sound into thinking the box is bigger than it actually is?

Yea, I have never used it but Im stuffin 3 lbs in my box this weekend.

SWFL
03-19-2009, 08:20 PM
doesnt do nothing for ported if i recall

DonH
03-19-2009, 08:24 PM
bro polyfill in a ported box wont do anything.

case solved.

9BlackN*Black6
03-19-2009, 08:46 PM
doesnt do nothing for ported if i recall


bro polyfill in a ported box wont do anything.

case solved.

Really?? Now I'm no polyfil pro but, in my application Im going for a little deeper and lower extended freq. output, Hence why kicker recommends polyfil....but he can do whatever he wants. If you really are that ify on using it just call stillwater designs.

DonH
03-19-2009, 08:59 PM
Really?? Now I'm no polyfil pro but, in my application Im going for a little deeper and lower extended freq. output, Hence why kicker recommends polyfil....but he can do whatever he wants. If you really are that ify on using it just call stillwater designs.



ok well my input was to vague.....

normally a ported enclosure is large... polyfill works great in sealed enclosures obviously....

the bigger the box's internal volume the less effective polyfill gets. it becomes harder to "trick" the subwoofer into "thinking" its in a larger enclosure.

Now when adding polyfill to a ported enclosure you cant just THROW it in there and expect great things.
Now To properly stuff a ported enclosure and KEEP its original tunning depends on the internal volume of the box before and after stuffing. Common rule of thumb a ported box 3 cubes or bigger about 1 pound of polyfill is needed per cube.


obviously stuffing a ported enclosure has its benefits but one must remember that stuffing a already built tuned box will change the resonant frequency.

also consult this link op

http://web.archive.org/web/20020808224043/integra.cyberglobe.net/caraudio/resources/fiberfill/

9BlackN*Black6
03-19-2009, 09:07 PM
ok well my input was to vague.....

normally a ported enclosure is large... polyfill works great in sealed enclosures obviously....

the bigger the box's internal volume the less effective polyfill gets. it becomes harder to "trick" the subwoofer into "thinking" its in a larger enclosure.

Now when adding polyfill to a ported enclosure you cant just THROW it in there and expect great things.
Now To properly stuff a ported enclosure and KEEP its original tunning depends on the internal volume of the box before and after stuffing. Common rule of thumb a ported box 3 cubes or bigger about 1 pound of polyfill is needed per cube.


obviously stuffing a ported enclosure has its benefits but one must remember that stuffing a already built tuned box will change the resonant frequency.

also consult this link op

http://web.archive.org/web/20020808224043/integra.cyberglobe.net/caraudio/resources/fiberfill/
That sounds more better!

*Honda*Bass*
03-19-2009, 11:14 PM
ok well my input was to vague.....

normally a ported enclosure is large... polyfill works great in sealed enclosures obviously....

the bigger the box's internal volume the less effective polyfill gets. it becomes harder to "trick" the subwoofer into "thinking" its in a larger enclosure.

Now when adding polyfill to a ported enclosure you cant just THROW it in there and expect great things.
Now To properly stuff a ported enclosure and KEEP its original tunning depends on the internal volume of the box before and after stuffing. Common rule of thumb a ported box 3 cubes or bigger about 1 pound of polyfill is needed per cube.


obviously stuffing a ported enclosure has its benefits but one must remember that stuffing a already built tuned box will change the resonant frequency.

also consult this link op

http://web.archive.org/web/20020808224043/integra.cyberglobe.net/caraudio/resources/fiberfill/

Cool I understand now too. lol:D dont know wtf id do with out caraudio.com

DonH
03-19-2009, 11:20 PM
Cool I understand now too. lol:D dont know wtf id do with out d_man1

fixed :D


haha jkjk