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Message: <blockquote data-quote="mylows10" data-source="post: 8325954" data-attributes="member: 614593"><p>You need a clamp meter with a max hold and a multimeter with max hold.  Set the clamp meter at ac amperage  and multimeter at ac voltage  probes in the pos and neg speaker wires and the clamp around the pos speaker wire  make sure the arrow on th clamp is pointed towards the sub box  or the natural flow of the current   Multiply the readings  when you burp  or play music. That should give rms wattage</p></blockquote><p></p>

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