new amp, new sound, whining
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=29588
Printed Date: August 26, 2025 at 4:17 AM
Topic: new amp, new sound, whining
Posted By: walty220
Subject: new amp, new sound, whining
Date Posted: April 02, 2004 at 11:29 PM
hey guys, today i unhooked my he2 and 401s amp because my subwoofer blew, and hooked up a kicker kx150.4 to my 4x10s and 3.5s. It sounds incredible with the car off, but as soon as its turned on i get static and a whine, its rpm related. I know there are filters of some sort applicable for my problem... any pointers? thanks
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1983 Oldsmobile Hurst/Olds
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Pioneer Premier DEH-P360
KICKER K35 & K410 Speakers
KICKER KX150.4 Amplifier
Rockford Fosgate PUNCH 1200W Amplifier
Rockford Fosgate PUNCH 800W 12" HE2
Replies:
Posted By: beav
Date Posted: April 02, 2004 at 11:33 PM
i had that same problem with my amp too. I just hooked up an RCA cable with a ground loop isolator right on the output of my cd player before the amp and that worked for me.
Posted By: walty220
Date Posted: April 02, 2004 at 11:59 PM
Describe the sound that was coming out of your speakers please. Before the amplifier, like in the trunk... or right off the cd player, hence, behind the dash? ------------- 1983 Oldsmobile Hurst/Olds
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Pioneer Premier DEH-P360
KICKER K35 & K410 Speakers
KICKER KX150.4 Amplifier
Rockford Fosgate PUNCH 1200W Amplifier
Rockford Fosgate PUNCH 800W 12" HE2
Posted By: Ravendarat
Date Posted: April 03, 2004 at 12:07 AM
Its ground noise. Its a good chance you have a bad ground and just couldnt hear the high pitch wine before because its outside the frequency response of the subwoofers. Reground the amp to an unpainted piece of metal and make sure its screwed down tight. That will probally fix your problem and save you money because you wont need the filter.
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: Clean Install
Date Posted: April 03, 2004 at 1:06 AM
Ravendarat, is right save your money, all a ground loop isolator is, is a band-aid for a problem that can be a simple fix, simply check your grounds to make sure that they are grounded well , especially make sure there is no paint, an have your ground, grounded to the chassis ------------- If we learn from each success and
each failure, then we can improve ourselves
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