bass humming
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=101236
Printed Date: May 17, 2024 at 3:20 PM
Topic: bass humming
Posted By: absolutepower
Subject: bass humming
Date Posted: January 16, 2008 at 4:51 PM
so my boys got a 07 bmw 3 series with a 750x1 and a l7 12 he is using a prepherial hi-lo converter. now everytime he turns off his radio the sub humms. now i belive he just has to turn the gain on the hi-lo down but i wanted to get some other opions/advice
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Replies:
Posted By: 1carshowking
Date Posted: January 17, 2008 at 11:02 PM
sounds like you have a bad ground on your stuff, the humming can be caused by engine noise
Posted By: i am an idiot
Date Posted: January 18, 2008 at 10:45 PM
The problem is that your amp is not turning off with the radio. You turn the radio off and the amp stays on, you connected the line out converter to your rear speakers. The rear speakers move slightly and this produces voltage at the line out converter and that tells the sub to move this in turn moves the rear speakers more and the cycle starts all over again.
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