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<blockquote data-quote="squeak9798" data-source="post: 1404061" data-attributes="member: 555320">Not saying the 9512 couldn&#039;t &quot;walk all over&quot; a W7 in the lanes...but it&#039;s not really because of their surrounds.&nbsp; One thing you are forgetting is that the W7&#039;s surround overlaps the mounting ring, whereas most other subwoofer&#039;s surrounds do not.&nbsp; What&#039;s this mean?&nbsp; The surround is moved further outward, increasing cone area //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif Even though the W7 does have a wide surround, it isn&#039;t really at a cone area disadvantage to most other subs because of it&#039;s unique design.&nbsp; The 12W7 actually has slightly more cone area than the 12W6v2, which uses a comparatively smaller surround, but &quot;typical&quot; mounting system.&nbsp; Compared to other &quot;supersubs&quot; like the XXX, Brahma, MTX 9512 (which uses a &quot;high roll&quot; surround), IDMax (high roll surround), etc etc.....the W7 again comes out either on top or equal as far as Sd is concerned.Though I couldn&#039;t find an actual Sd for the DD 9512, I&#039;d venture to say the 12W7 does not have an Sd disadvantage to it.</blockquote>

[QUOTE="squeak9798, post: 1404061, member: 555320"] Not saying the 9512 couldn't "walk all over" a W7 in the lanes...but it's not really because of their surrounds. One thing you are forgetting is that the W7's surround overlaps the mounting ring, whereas most other subwoofer's surrounds do not. What's this mean? The surround is moved further outward, increasing cone area [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] Even though the W7 does have a wide surround, it isn't really at a cone area disadvantage to most other subs because of it's unique design. The 12W7 actually has slightly more cone area than the 12W6v2, which uses a comparatively smaller surround, but "typical" mounting system. Compared to other "supersubs" like the XXX, Brahma, MTX 9512 (which uses a "high roll" surround), IDMax (high roll surround), etc etc.....the W7 again comes out either on top or equal as far as Sd is concerned. Though I couldn't find an actual Sd for the DD 9512, I'd venture to say the 12W7 does not have an Sd disadvantage to it. [/QUOTE]

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