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Message: <blockquote data-quote="burro breath" data-source="post: 4521735" data-attributes="member: 584212">ok so i bought an re sr 12" with dual 4s and put it in a 2 cu ft ported box tuned to 36 hertz. i powered it briefly with 80 watts rms to only one of the 2 coils. and it sometimes makes a tapping noise that sounds as if the coil is smacking the back of the magnet. the coil does not rub and the sub can handle 300 rms and i am only giving it 80. i just bought an amp that is 300rms and i was wondering if the noise will only get worse? and what could the noise be? thanks,burro breath</blockquote>

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