unstopable whining noise from speakers
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=102061
Printed Date: May 15, 2025 at 12:22 PM
Topic: unstopable whining noise from speakers
Posted By: bumpinexploder
Subject: unstopable whining noise from speakers
Date Posted: February 10, 2008 at 2:59 PM
i got a two channel amp. (oldschool legacy 400) and i ran power ground and remote wire and when i hook the speaker up to the amp its a constant high pitch whining noise. i have a short ground with good connection and the power wire is seperate from rcas. only thing i was thinkin is its a wiring kit from walmart. maybe it just sucks? any help would be awesome.
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Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Replies:
Posted By: Alpine Guy
Date Posted: February 10, 2008 at 3:50 PM
My assumption would be bad amp...no matter what school your talking about, Legacy has been failing class for ages.
But, does it do this when the vehicle is off too??
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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
Posted By: bumpinexploder
Date Posted: February 10, 2008 at 4:07 PM
no i took out the amp today but when it was in it only did it when i hook the speaker up to the amp. never any other time. just when i touched the wire to the speaker
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Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: i am an idiot
Date Posted: February 10, 2008 at 6:30 PM
Pioneer radio?
Posted By: bumpinexploder
Date Posted: February 10, 2008 at 7:14 PM
yes it is a pioneer radio but i dont have any money to change or try new radios. how sure are you that this could be the problem?
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Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: audioman2007
Date Posted: February 10, 2008 at 7:27 PM
see if the speaker makes this noise when you have the vehicle turned to accessory (engine off). If the noise isnt present, but is when the vehicle is running, then its a ground loop problem, therefore your amp doesnt have a solid ground.
Posted By: bumpinexploder
Date Posted: February 10, 2008 at 8:41 PM
it does make the noise for both on and off
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Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: i am an idiot
Date Posted: February 11, 2008 at 12:52 AM
Your radio has lost it's ground reference on the shield of the RCA jacks. Take a short length of wire, ground one end of the wire. Touch the other end of the wire to the Outer shiny part of the RCA cable that is going to the amp. This should make the noise go away. Let us know what happens.
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