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<blockquote data-quote="Kevlar" data-source="post: 3303398" data-attributes="member: 578153">Tonight I finally finished building my sub box for my 12&quot; FI Q. Last week I had already installed my Hifonics BXi1606D amp, and run all of the wires for it, so tonight I put the sub in the car, and went about to set the gains...Well, I put in my 60 Hz test tone, set my HU (Alpine CDA-9887) volume at the max level I would ever set it at (above which I get distortion), turned off the internal amp, and went back to the trunk to set the gains (the level/gain had always been set to the lowest level before this). Well, I hooked up my multimeter, and only got ~.2 V AC at minimum gain. Turning it up some yielded only a few tenths higher... wtf is going on here? I know I hooked everything up right (it&#039;s not -that- hard), I set the subwoofer to on on the headunit... is there anything I&#039;m forgetting? Is it possible that I somehow severed one of the RCA cables when i fished it through under my carpet (using a coat hangar)? I&#039;m going to either find another RCA cable tomorrow and try that, or at least check the continuity of my current cables (brand new KnuKonceptz cable). Or does it sound like the amp is FUBAR? I bought it used from a member of the forum (not naming names yet), who claimed it only had a few hours of light use before. Any insight? I want to get my sub working //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif</blockquote>

[QUOTE="Kevlar, post: 3303398, member: 578153"] Tonight I finally finished building my sub box for my 12" FI Q. Last week I had already installed my Hifonics BXi1606D amp, and run all of the wires for it, so tonight I put the sub in the car, and went about to set the gains... Well, I put in my 60 Hz test tone, set my HU (Alpine CDA-9887) volume at the max level I would ever set it at (above which I get distortion), turned off the internal amp, and went back to the trunk to set the gains (the level/gain had always been set to the lowest level before this). Well, I hooked up my multimeter, and only got ~.2 V AC at minimum gain. Turning it up some yielded only a few tenths higher... wtf is going on here? I know I hooked everything up right (it's not -that- hard), I set the subwoofer to on on the headunit... is there anything I'm forgetting? Is it possible that I somehow severed one of the RCA cables when i fished it through under my carpet (using a coat hangar)? I'm going to either find another RCA cable tomorrow and try that, or at least check the continuity of my current cables (brand new KnuKonceptz cable). Or does it sound like the amp is FUBAR? I bought it used from a member of the forum (not naming names yet), who claimed it only had a few hours of light use before. Any insight? I want to get my sub working [IMG]//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif[/IMG] [/QUOTE]

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