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<blockquote data-quote="Jakeeck" data-source="post: 5434506" data-attributes="member: 604688"><p>i had my gain at about 80-85%.. its from 9v-.2v.. i set it by ear.. but today i decided to set it by dmm with a 50 Hz test tone.. so i calculated that with 900w wired at 2 ohms i should be getting an output of 42.4v.. so i set my gain to 46v with the dmm</p><p></p><p>just hooked everything back up and it was a little quieter than before.. gain is at about 4.4-4.7v.. i have the output measured at 46v since i know you can set the gains higher with music than a test tone.. but can i still turn it up a little more?</p><p></p><p>and also.. when i calculated all of this with an online calculator my gain should have been at 2.36v in order to put out 900w with my hifonics 1208d wired at 2 ohms(see pic)</p><p></p><p><img src="http://i301.photobucket.com/albums/nn80/Jakeeck/calc.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>what could be affecting this? i had no load hooked up to the amp when i set my gain with the dmm but i read another thread on here saying that shouldnt matter..</p><p></p><p>sub is a 15" ia li.. deck is an eclipse cd3100 5v preout</p></blockquote><p></p>
[QUOTE="Jakeeck, post: 5434506, member: 604688"] i had my gain at about 80-85%.. its from 9v-.2v.. i set it by ear.. but today i decided to set it by dmm with a 50 Hz test tone.. so i calculated that with 900w wired at 2 ohms i should be getting an output of 42.4v.. so i set my gain to 46v with the dmm just hooked everything back up and it was a little quieter than before.. gain is at about 4.4-4.7v.. i have the output measured at 46v since i know you can set the gains higher with music than a test tone.. but can i still turn it up a little more? and also.. when i calculated all of this with an online calculator my gain should have been at 2.36v in order to put out 900w with my hifonics 1208d wired at 2 ohms(see pic) [IMG]http://i301.photobucket.com/albums/nn80/Jakeeck/calc.jpg[/IMG] what could be affecting this? i had no load hooked up to the amp when i set my gain with the dmm but i read another thread on here saying that shouldnt matter.. sub is a 15" ia li.. deck is an eclipse cd3100 5v preout [/QUOTE]
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