skittlesRgood Posted April 2, 2011 Report Share Posted April 2, 2011 lol no dude. using a DMM its pretty damn accurate. WAY batter than guessing, or as you called it, going by ear. So you would use Voltage = SQRT(Power x Resistance) in order to adjust the gain until the amplifier's output voltage matches. Only problem is impedance is always changing. I guess it would get you close enough, but so would using your ear... yes. impedance is always changing, yes. but is it ever lower than nominal? no. using the DMM is accurate. i have tested it with my o-scope. clipping happens before it is audible at sub frequencies. above ~200hz its audible rite away. at least thats what i noticed while using a tone generator. Quote If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood. Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s. http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/ Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build Yeah. im pretty sure they dont warranty retarded people. Link to comment Share on other sites More sharing options...
stefanhinote Posted April 2, 2011 Report Share Posted April 2, 2011 lol no dude. using a DMM its pretty damn accurate. WAY batter than guessing, or as you called it, going by ear. So you would use Voltage = SQRT(Power x Resistance) in order to adjust the gain until the amplifier's output voltage matches. Only problem is impedance is always changing. I guess it would get you close enough, but so would using your ear... yes. impedance is always changing, yes. but is it ever lower than nominal? no. using the DMM is accurate. i have tested it with my o-scope. clipping happens before it is audible at sub frequencies. above ~200hz its audible rite away. at least thats what i noticed while using a tone generator. Yeah I would say 200hz is a bit out of the sub woofers response realm Quote Link to comment Share on other sites More sharing options...
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