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<blockquote data-quote="mrjoeyjiffy" data-source="post: 5209698" data-attributes="member: 586325">ok so my setup is as follows:2001 tahoeBig 3rebuilt alt 190a(shitty at idle though)stock battery under hoodyellow top in the rearok so my problem is that my voltage drops very badly during bass notes, especially at idle.normally im at 14ish volts wise(my pioneer HU seems to read about .4v lower than what the dash reads) whenever im above 800 rpms or so, at idle im probably at about 12. but when a hard bass note hits i can drop to as low as 11 volts at idle, and it still can go as low as 13 when not at idle.im getting pretty bad dimming if its a really bass heavy song and i have it cranked.my sound setup is as follows,nfinity reference 6022i 6.5 2-waysHifonics titan txi 4006Earthquake PHD5000WPioneer DEH-P780mp2 Jbl W12Gti MkII&#039;sI bought the amp from a friend of a friend who has 2 120 mm fans mounted on top of it that keep it cool(when i had the fans unhooked, 10 minutes of max play would have the amp too hot to touch, with those fans on it stays very mildly warm. Ive heard they are pieces of shit, but it seems to get everything pretty loud, most people find it uncomfortable to listen to a loud volumes, so im assuming its working.but my question is, does it sound like something else is wrong here? or should i get an isolater? any help would be appreciated.</blockquote>

[QUOTE="mrjoeyjiffy, post: 5209698, member: 586325"] ok so my setup is as follows: 2001 tahoe Big 3 rebuilt alt 190a(shitty at idle though) stock battery under hood yellow top in the rear ok so my problem is that my voltage drops very badly during bass notes, especially at idle. normally im at 14ish volts wise(my pioneer HU seems to read about .4v lower than what the dash reads) whenever im above 800 rpms or so, at idle im probably at about 12. but when a hard bass note hits i can drop to as low as 11 volts at idle, and it still can go as low as 13 when not at idle. im getting pretty bad dimming if its a really bass heavy song and i have it cranked. my sound setup is as follows, nfinity reference 6022i 6.5 2-ways Hifonics titan txi 4006 Earthquake PHD5000W Pioneer DEH-P780mp 2 Jbl W12Gti MkII's I bought the amp from a friend of a friend who has 2 120 mm fans mounted on top of it that keep it cool(when i had the fans unhooked, 10 minutes of max play would have the amp too hot to touch, with those fans on it stays very mildly warm. Ive heard they are pieces of shit, but it seems to get everything pretty loud, most people find it uncomfortable to listen to a loud volumes, so im assuming its working. but my question is, does it sound like something else is wrong here? or should i get an isolater? any help would be appreciated. [/QUOTE]

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