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Message: <blockquote data-quote="Boomin_tahoe" data-source="post: 8604658" data-attributes="member: 562180">Couple of free tests you can do is take a few small pieces of speaker wire hook it up to the terminal of the sub and the other to a small battery...doesn&#39;t matter which one or how big. The sub should move upwards. If it moves downwards, reverse the polarity. If nothing, you may have a blown sub.Another thing you can do is place your hand flatly on the cone and press down....if you feel scratching at all, it&#39;s def blown. Post pics if you can.  Just noticed your in WA....where at? If your close, I can test it for ya, no charge. [USER=673912]@TrevorP[/USER]</blockquote>

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