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Message: <blockquote data-quote="Papermaker85" data-source="post: 6684333" data-attributes="member: 572595">the hifonics is nice and does abit over rated.. but so does the SD they are capible of doing 3500+ @1ohm with 14 volts.. your seeing a small efficency drop going from 2 to .5 with the SD.. frequency response won't change between the 2 amps.. im 99.9999% positive you just need to properly set the gains... honestly i don't know hwy you sold the hifonics there great amps..check you CDC players settings, turn the SSf on the SD all the way down turn the HP all the way up and make usre your wiring is correct, make sure you didn't wire a coil out of phase etc.. chanes are you won't hear any difference between the 2 amps..</blockquote>

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