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<blockquote data-quote="cotjones" data-source="post: 2962769" data-attributes="member: 573988">it&#039;s not the voice coil. it&#039;s the &quot;middle portion of the W cone&quot; there isn&#039;t really an equivanent to a dust cap breaking on a w7, cause there isn&#039;t a dustcap , or if you&#039;d like the whole surface of the sub is the &quot;dustcap&quot; if any part of that face&nbsp; 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&#039;s broken is because the entire rigidity of the cone works in together with the upper and lower parts supporting each other. it&#039;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&#039;t turn it down a bit, yes it will go.. subs just don&#039;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&#039;m guessing it&#039;s not in warranty tho...</blockquote>

[QUOTE="cotjones, post: 2962769, member: 573988"] 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... [/QUOTE]

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