Box for 2 12 L7. Need help bad!!!!

[Civic_boi334 10+ year member]

Ive tried two different boxes for these subs and I know these sub can do way more damage!!!!! Ive tried these 2 boxes:

32w x 15h x 24d 1 2in port that goes back 18 5/8 This box was a monster but they told to do a 2nd port and it would do even better.

34w x 15h x 24d 2 2in ports that goes back 18 5/8 This the sorry *** box that they told me to build and was worse!!!!!!! When low bass hit, the subs barely move!!!! I decided to put polyfill behind 1 of the subs and that one outdid the the other. Then, I plugged the port up on the other sub and that one outdid the polyfill. I got more sound from doing this but it still sucks!!!!! The bass is not solid @ all.

Can someone help me please???????? Thanx

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[coolahan 10+ year member]

get it professionally done

 

[80INCHES 5,000+ posts]

put it in a 4th order bandpass tuned to 40hz and u will have wat u want

80

 

[iamamp3pimp 5,000+ posts]

indeed.

 

[vetkilr 10+ year member]

lol

 

[mazdakid 5,000+ posts]

use more port area than a 2" port

 

[orphe 10+ year member]

Ive tried two different boxes for these subs and I know these sub can do way more damage!!!!! Ive tried these 2 boxes:
32w x 15h x 24d 1 2in port that goes back 18 5/8 This box was a monster but they told to do a 2nd port and it would do even better.

34w x 15h x 24d 2 2in ports that goes back 18 5/8 This the sorry *** box that they told me to build and was worse!!!!!!! When low bass hit, the subs barely move!!!! I decided to put polyfill behind 1 of the subs and that one outdid the the other. Then, I plugged the port up on the other sub and that one outdid the polyfill. I got more sound from doing this but it still sucks!!!!! The bass is not solid @ all.

Can someone help me please???????? Thanx

is space an issue?

 

[Civic_boi334 10+ year member]

I went by a local shop measurements. Thats what I came up with.

 

[Lakota 5,000+ posts]

2 2in ports? I'd have more port area than that for a single 10.

 

[Civic_boi334 10+ year member]

Everytime I do a bigger port I would get 1 or the other. I got high bass but, when the low end hit, the subs bottom out. I had 1 2inch port that out did all the boxes Ive had. so, the local shop told me to add another port to the box and I would hit twice a hard. I figured out what the prob was, When I added the port, I added 2 inches to the port and didnt take the inches away from another section of the box. So im going to take 2 inches off the height. Will that help????

 

[SouthRuninIt 10+ year member]

nope because u should have the box at lease 14 - 14.5 for a 12...

 

[coolahan 10+ year member]

Everytime I do a bigger port I would get 1 or the other. I got high bass but, when the low end hit, the subs bottom out. I had 1 2inch port that out did all the boxes Ive had. so, the local shop told me to add another port to the box and I would hit twice a hard. I figured out what the prob was, When I added the port, I added 2 inches to the port and didnt take the inches away from another section of the box. So im going to take 2 inches off the height. Will that help????

this is from improperly built boxes i believe //content.invisioncic.com/y282845/emoticons/up2something.gif.dd110ecf3ae4b76050d87598f2f8de7c.gif

 

[ex_03]

Have you looked the http://www.kicker.com website? I have almost always DL'ed the specs or talked to there techs on the phone and told them my situation. They have never steared me wrong! Noone knows there stuff better then them! As for the L7 12's I have used the recommended specs from the site for the large ported enclosure and everytime sound beautiful!