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Ground-loop problem and something else?

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=56111
Printed Date: May 10, 2025 at 3:30 PM


Topic: Ground-loop problem and something else?

Posted By: alpine_canada
Subject: Ground-loop problem and something else?
Date Posted: May 20, 2005 at 12:34 PM

Just installed my amp into my truck. Hooked everything up and noticed that my sub plays the sounds the deck makes when its working or something. On top, i've got an alternator whine so I assume just a bad ground/ground-loop.

P.S. Sorry if this is a repost but I couldn't find anything in Search



Replies:

Posted By: bullman96
Date Posted: May 20, 2005 at 12:43 PM
yup, use a dmm to check the resistance of various spots to the negative terminal on the batt to ground to and pick the best. scrape and sand all the paint off.

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Pioneer PEH-9660mp
Mb Quart PCE-216 biamped
JL 12W6v2
Sony XM-4026 amp for tweeters
Kenwood KAC-7251 amp for mids
JL-4100 amp for sub




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