unstopable whining noise from speakers

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bumpinexploder

Copper - Posts: 265

Joined: February 06, 2008

Location: Texas, United States

Posted: February 10, 2008 at 2:59 PM / IP Logged

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.

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

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Alpine Guy

Platinum - Posts: 2,478

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Joined: October 18, 2003

Location: Canada

Posted: February 10, 2008 at 3:50 PM / IP Logged

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??

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.

bumpinexploder

Copper - Posts: 265

Joined: February 06, 2008

Location: Texas, United States

Posted: February 10, 2008 at 4:07 PM / IP Logged

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

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

i am an idiot

Platinum - Posts: 13,674

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: February 10, 2008 at 6:30 PM / IP Logged

Pioneer radio?

bumpinexploder

Copper - Posts: 265

Joined: February 06, 2008

Location: Texas, United States

Posted: February 10, 2008 at 7:14 PM / IP Logged

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?

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

audioman2007

Copper - Posts: 580

Joined: February 20, 2007

Location: United States

Posted: February 10, 2008 at 7:27 PM / IP Logged

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.

bumpinexploder

Copper - Posts: 265

Joined: February 06, 2008

Location: Texas, United States

Posted: February 10, 2008 at 8:41 PM / IP Logged

it does make the noise for both on and off

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

i am an idiot

Platinum - Posts: 13,674

Joined: September 21, 2006

Location: Louisiana, United States

Posted: February 11, 2008 at 12:52 AM / IP Logged

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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unstopable whining noise from speakers

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