kicker L7 dissapoints me.

[tommyk90 5,000+ posts]

You're ridiculous. I never said a box with a large hole will return slowly. Of course it will spring back as fast as the suspension will allow. The reason it returns slowly with a small leak is because the air is trying to enter the enclosure but it is heavily restricted. The larger the hole, the faster the sub will return because the air becomes less and less restricted. Just like said above, you create a vacuum when you push in the sub and there is a small leak. This does NOT happen when the enclosure is properly sealed because there is no vacuum because there is no leak. The air acts as a spring and forces the sub back to it's position.

Please make a video. Don't forget to duct tape around the sub and get tons of shots of inside the enclosure.

Either way, you will not listen to me or believe me because you think you're the Jesus of car audio and I'm some loser trapped in "theory" world or whatever.

i'm not going to bother to prove anything to you. You think you know all based upon physics therories and whatever you read in textbooks. I base my opinions on what I have seen in real world situations.

Neither you or myself are going to prove that we are right and they are wrong, so it's not even worth it to continue on any more.

Believe what you want, and I'll believe what I want. A box with a small hole is going to allow the sub to return to "normal" faster than a completely sealed box. This is my opinion, and if you don't agree with it, I'm sorry.

 

[Demi 10+ year member]

i'm not going to bother to prove anything to you. You think you know all based upon physics therories and whatever you read in textbooks. I base my opinions on what I have seen in real world situations.
Neither you or myself are going to prove that we are right and they are wrong, so it's not even worth it to continue on any more.

Believe what you want, and I'll believe what I want. A box with a small hole is going to allow the sub to return to "normal" faster than a completely sealed box. This is my opinion, and if you don't agree with it, I'm sorry.

This isnt an opinion situation there home slice. A SEALED box means no air can escape. If you push on the sub the air inside pushes back. Its like pushing in on a beach ball, it doesnt slowly refill itself, it pops right back. If there is a small leak in the beach ball you slowly push air out, if there was a way to force the beach ball back to its original shape, the air would leak back in as slowly as it did out (slow cone return to neutral positions. What subs are the best and what size inclosure sounds the best are OPINIONS, as were you are talking about a physical occurence which can be proved. Look man, if you dont understand physics thats fine, but dont assume you know more than someone thats studied it, you will never learn anything with that attitude. If you have slow cone return on a sealed box you have a leak. If you have done this yourself and gotten those results, that doesnt prove your point, it proves that you need to stop arguing and go and seal your box up. To summerize big hole = fast cone return. No hole = fast cone return. Little hole(s) = slow con return.

 

[xtremekustomz 10+ year member]

If I'm not mistaken, in the Kicker tech manual it tells you how to check and see if the enclosure is properly sealed. And believe it or not, it says when you push the cone in on a completely sealed box it will take a few seconds for it to return to normal. But what the hell does Kicker know?????????????

 

[almond 10+ year member]

because most boxes woin't be completely sealed. i'm sure few poeple here have ever even seen a air tight enclosure. if a sealed box has such a small leak that it takes a second or two to refill it will be sealed enough and you won't have any consequences. that is what kicker is saying. think of a soda bottle. when you push in on it does it slowly come back to it's shape?? i can see everyones sides of the argument, however i can't really explain it.

 

[Demi 10+ year member]

If I'm not mistaken, in the Kicker tech manual it tells you how to check and see if the enclosure is properly sealed. And believe it or not, it says when you push the cone in on a completely sealed box it will take a few seconds for it to return to normal. But what the hell does Kicker know?????????????

I belive you are mistaken.

http://www.kicker.com/06/tech-support/manuals/manuals/2006/2006%20L7%20Sub%20b01%20WEB.pdf

The acoustic suspension design has several advantages: it is easy to build, easy to tune, and offers high power handling, tight response and extended low end output. Acoustic suspension enclosures roll off at 12 dB per octave. Cone motion is better controlled at all frequencies because of the constant pressure on the back side of the cone, which enables you to run more power to the woofer. They are called acoustic suspension enclosures because the air inside the box acts like a viscous brake to control the woofer. That is why the box must be sealed tight. If there are any air leaks in the enclosure, the woofer cannot function properly.

 

[sue bee 10+ year member]

I belive you are mistaken.http://www.kicker.com/06/tech-support/manuals/manuals/2006/2006%20L7%20Sub%20b01%20WEB.pdf

He said "a manual" not an online FAQ.

 

[Immacomputer 10+ year member]

i'm not going to bother to prove anything to you. You think you know all based upon physics therories and whatever you read in textbooks. I base my opinions on what I have seen in real world situations.

No. I'm saying what I'm saying because that is what I have EXPERIENCED! You think that I don't have any real world experience because I don't compete but what the hell do you know about me? Who are you to tell me that I think I know everything from reading it in a book? My experience is backed up by physics. Your experience isn't supported at all unless you had a small leak in your enclosure (probably from where the sub is mounted). Get off your high horse and go fix your leaky enclosure.

 

[Demi 10+ year member]

He said "a manual" not an online FAQ.

Thats right he did. Check the link again. Its the 06 L7 manual.

 

[xtremekustomz 10+ year member]

The tech manual......not given to the general public. You have to be a dealer to receive this one.

 

[Demi 10+ year member]

Thats strange that an elite, selectively distributited manual would print inaccurate information. This isnt hard people, if you push a cone and there is a small leak you force air out of the box and it takes time for the sub to pull the air back in. If there is no leak you are compressing the air inside the box and it pushes right back out. If you cant figure this, simple as it gets physics, phenomonon you have no business reproducing. I dont see why people would argue this, more over why this is even an issue as clear cut as it is. Unless someone can prove that pressurized air expands slowly, its open and shut. If you are interested in seeing the effects of pressurized gas expanding, grab so tech-duster and tell me how slowly it expands when blown out the nozzle. Really at this point with all the explantions, if you dont get it you **** at life. Im done.

 

[Polecat 5,000+ posts]

IMHO, a properly sealed enclosure, if you push in on the cone, the driver would come back immediately if there was an airleak.The better the sealed enclosure, the slower to 'dead set' .

Nobody's gonna build a 'perfectly' sealed box with a woofer in it anyway.