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<blockquote data-quote="Telegon80" data-source="post: 2311990" data-attributes="member: 571584">You conveniently forgot the biggest reason of all, that i stated on my last post... which is the Price Factor.Let&#039;s rewind behind the issue of whether they are intentional or not.&nbsp; The dimple is there because surround material cannot comform to the travel to which is subjected to.Why? Because the thickness and profile (shape) of the surround are not conductive to the type of movement it is subjected to.What is a dimple? A dimple is 1 more movement that the surround is subjected to, therefore, 1 more thing that can go wrong.&nbsp; Whether the dimples are planned or not, the fact that they are there means that the way they act will have an effect on the movement of the cone.If 1 dimple changes shape or dimension then the whole balance of the cone is thrown off.. and there goes your SQ and over time, there goes your speaker.&nbsp; There are speakers with a 4&quot; peak to peak excursion which exhibit no dimples under full excursion, for example a 13w7.No FEA was done on the eD sub.&nbsp; I dont need to do more than just look at the video to deduct that.&nbsp; No engineer on his right mind would let that surround hit the market after putting it through cosmos.</blockquote>

[QUOTE="Telegon80, post: 2311990, member: 571584"] You conveniently forgot the biggest reason of all, that i stated on my last post... which is the Price Factor. Let's rewind behind the issue of whether they are intentional or not. The dimple is there because surround material cannot comform to the travel to which is subjected to. Why? Because the thickness and profile (shape) of the surround are not conductive to the type of movement it is subjected to. What is a dimple? A dimple is 1 more movement that the surround is subjected to, therefore, 1 more thing that can go wrong. Whether the dimples are planned or not, the fact that they are there means that the way they act will have an effect on the movement of the cone. If 1 dimple changes shape or dimension then the whole balance of the cone is thrown off.. and there goes your SQ and over time, there goes your speaker. There are speakers with a 4" peak to peak excursion which exhibit no dimples under full excursion, for example a 13w7. No FEA was done on the eD sub. I dont need to do more than just look at the video to deduct that. No engineer on his right mind would let that surround hit the market after putting it through cosmos. [/QUOTE]

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