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Message: <blockquote data-quote="jlfx car audio" data-source="post: 5112218" data-attributes="member: 572803"><p>box tuning and the subs copper coil moving inside the magnetic gap changes the resistance usualy big boxes have less imp rise than smaller boxes this is why you see 1-2 cf boxes with a pair of 5k amps strapped @ .125 or something crazy bigger boxes have actual resistances only about x2-x3 more than the sub actualy reads  this is why your 1000w ---?????----amp doesnt do 1kw only about 300 to 600 real power</p></blockquote><p></p>

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