Is this Bad??? JL 13W7 Question

[LOW S-10 10+ year member]

Is the whole in the middle of the sub bad??? I know when it starts to show on the W6's, it means there going bad. And also, when you press in that area, Is it supose to make a popping sound???

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[btlking 10+ year member]

wow you broke that shit

lol idk

 

[BassAce 10+ year member]

What kind of amp do you have connected to it?

 

[Max_Power 10+ year member]

give JL a shout, maybe they could help better than us. IDK really, but it doesnt look serious, comparable to maybe the dustcap being crushed????

 

[LOW S-10 10+ year member]

What kind of amp do you have connected to it?

It had a single 1000/1

 

[JCivicHb 10+ year member]

cmon guys none of you have ever seen that? although that one pictured above looks too small for a dub 7, that is what happens what the coil and or former bottoms out and crunches up into the cone. its pretty bad to do also

 

[JCivicHb 10+ year member]

edit- not sure if you can even do that to a w7 because of the multiple dust caps and such, but thats my best guess, and i have seen another guy on here that bought some w6s and he got them like that and that was why.

 

[cotjones 10+ year member]

it's not the voice coil. it's the "middle portion of the W cone" there isn't really an equivanent to a dust cap breaking on a w7, cause there isn't a dustcap , or if you'd like the whole surface of the sub is the "dustcap" if any part of that face cracks its gunna sound like shit. its called the w cone because if you cut the sub in half the the lower portion of the cone litterally looks like a w, that impression on your sub is the middle point of the w, the reason it will sound bad if it's broken is because the entire rigidity of the cone works in together with the upper and lower parts supporting each other. it's likely to be caused because you played it at high levels, what happens is (if you can picture this)...

as the force is exerted on the cone assembly from the voice coil, the outer part of the lower of the W shaped part of the cone flexes more than the inner part...

...in other words picture a traditionally built sub with a dust cap and then add a cone in the middle to support the dustcap, the middle cone is going to be more rigid because its smaller, so at high excusion levels there is more force on the center of the sub than on the area near the surround.

now does this mean your sub is about to die? not always... it normally does, because it means you are putting more power to it than it was designed to handle long term, so if you don't turn it down a bit, yes it will go.. subs just don't last forever, and with the W cone design unfortunately power levels are very influential on how long your sub is going to last... i'm guessing it's not in warranty tho...

 

[regal8r 5,000+ posts]

friends brand new w7s taht i just installed tonight have that too...i wouldnt worry about it

OT: god **** 13w7s are heavy as shit lol

 

[TheFiverMan 10+ year member]

looks like a w6.

 

[teamquakecelica 10+ year member]

Umm.. had a 13w7 and a have a 12w7... both had/have that look... its no big deal.. NEVER had a single problem

Ryan

 

[LOW S-10 10+ year member]

cmon guys none of you have ever seen that? although that one pictured above looks too small for a dub 7, that is what happens what the coil and or former bottoms out and crunches up into the cone. its pretty bad to do also

Good eye. Thats a pic of a 10. I just found it with the same problem I was having.

it's not the voice coil. it's the "middle portion of the W cone" there isn't really an equivanent to a dust cap breaking on a w7, cause there isn't a dustcap , or if you'd like the whole surface of the sub is the "dustcap" if any part of that face cracks its gunna sound like shit. its called the w cone because if you cut the sub in half the the lower portion of the cone litterally looks like a w, that impression on your sub is the middle point of the w, the reason it will sound bad if it's broken is because the entire rigidity of the cone works in together with the upper and lower parts supporting each other. it's likely to be caused because you played it at high levels, what happens is (if you can picture this)...as the force is exerted on the cone assembly from the voice coil, the outer part of the lower of the W shaped part of the cone flexes more than the inner part...

...in other words picture a traditionally built sub with a dust cap and then add a cone in the middle to support the dustcap, the middle cone is going to be more rigid because its smaller, so at high excusion levels there is more force on the center of the sub than on the area near the surround.

now does this mean your sub is about to die? not always... it normally does, because it means you are putting more power to it than it was designed to handle long term, so if you don't turn it down a bit, yes it will go.. subs just don't last forever, and with the W cone design unfortunately power levels are very influential on how long your sub is going to last... i'm guessing it's not in warranty tho...

Thanks man. It still has the JL warranty, so do you think they will cover it???

 

[Atimm693 10+ year member]

Good eye. Thats a pic of a 10. I just found it with the same problem I was having.
Thanks man. It still has the JL warranty, so do you think they will cover it???

They should, and if they dont be an *** to them till they fix it, unless you caused it by user error.

How much longer is left on the warranty? If its quite a while till it expires then Id just keep using it to see if has any real bad probs. As said above, maybe its not something to worry about.

 

[cotjones 10+ year member]

Good eye. Thats a pic of a 10. I just found it with the same problem I was having.
Thanks man. It still has the JL warranty, so do you think they will cover it???

probably not, because technically there is nothing wrong with it... with the 1000/1 it's unlikely that you'd burn the coil with more than 2000 watts (which is warranty void, so keep it as long as you can, as long as it don't burn the coil) and check with your jl dealer about if it's under warranty.

 

[hardhitta47 10+ year member]

Didn't he say it was making a popping sound though?