getting subwoofer hums

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=93569
Printed Date: May 03, 2024 at 8:14 PM

Topic: getting subwoofer hums

Posted By: alpine dude
Subject: getting subwoofer hums
Date Posted: May 03, 2007 at 12:42 AM

when my amps are on with no volume one of my subs tweaks and rumbels.you can hear it when changing the song. if i run sub one to amp one works fine when i run second amp to second sub using the pre-outs from the first one, i get this problem, if it's fixable please help

Replies:

Posted By: DYohn
Date Posted: May 03, 2007 at 8:26 AM

Could be a number of things including bad ground, improper gain setting, bad speaker wire, bad RCA cable, defective amp, defective speaker, etc. How is this system set up and how is it installed? What are the makes/models of the gear? What else is in the system?

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Posted By: i am an idiot
Date Posted: May 03, 2007 at 11:44 AM

Chances are you lost ground on the shields of your patch cords going to amp 2 why not get a set of Y adaptors and not use the output of amp 1

and what happens if you bypass amp 1 all together, does amp 2 make noise if it is the only amp being used?

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