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subwoofer noise, but no whine

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=94114
Printed Date: June 08, 2024 at 10:23 AM


Topic: subwoofer noise, but no whine

Posted By: justodd
Subject: subwoofer noise, but no whine
Date Posted: May 21, 2007 at 8:28 AM

I just installed an 8 inch Kicker sub in my 03 Denali.  The HU is Kenwood DDX 8017, and the amp is Hifonics.  The complaint is that the sub makes a low humming noise at key on, and at idle.  The noise doesn't get worse as RPM go up, but you can definetly hear it at idle.  I made sure that my ground to my amp was clean, and changed the ground to the HU.  The noise occurs using either channel on the amp ( I tried both).   I also tried hooking up different RCA's  (from stinger), but the noise persisted.  I have kind of hit a wall, any help would be much appreciated.

thanks,

todd




Replies:

Posted By: austincustoms
Date Posted: May 21, 2007 at 10:19 AM
Something we always do at Custom Sounds is Y off the ground at the head unit, run it back to the amp, and ground it to the amps ground terminal. This seems to eliminate a lot of noise problems. It may also be the amp. Hifonics is not really known for quality, so I would bench test it.


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