amp noise

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qdaddy

Copper - Posts: 133

Joined: March 06, 2006

Posted: October 27, 2008 at 11:54 PM / IP Logged

07 tahoe installed clarion 675 cd player with 4channel amp have not a whine sound but more of backround hissing noise. did not use the chime chevy harness just standard metra wiring but only use the 12v and ground from that plug. have had same problem in 08 tahoe with pioneer indash screen and 4channel amp and used the chime metra harness that time and had similar noise. this also happened in 06 pontiac g6 and an 07 impala has anybody witnessed this occurence in newer chevy vehicles and jus to mention all these vehicles had new wiring, radio, amp, speakers, and were installed by different installers using different brands each time thnx in advance

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i am an idiot

Platinum - Posts: 13,670

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: October 28, 2008 at 4:07 AM / IP Logged

Turn the gains down until the noise goes away, and then see if you can still reach your desired listening level.

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qdaddy

Copper - Posts: 133

Joined: March 06, 2006

Posted: October 29, 2008 at 12:44 AM / IP Logged

that helps a little but still some noise could it be the alternator on these newer chevy vehicles jus does not filter current noises and ripples out efficiently or maybe the factory battery i noticed the factory radio had similar noise but not as loud

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i am an idiot

Platinum - Posts: 13,670

Joined: September 21, 2006

Location: Louisiana, United States

Posted: October 29, 2008 at 2:07 AM / IP Logged

If it were coming from the alternator, or it was alternator related, it would change according to engine RPM. What you are experiencing is known as System noise. If it was there with the factory system, and you added an amplifier, the amp amplifies whatever it sees. That is why it is no louder than before. You can't have a 69 Camaro run an 8 second quarter mile and expect it to idle smooth.

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qdaddy

Copper - Posts: 133

Joined: March 06, 2006

Posted: October 29, 2008 at 3:05 AM / IP Logged

we all know this but question still remains whats the deal there is low whine but mostly noise as i stated this been seen in multiple cars done by multiple installers talk bout possible hidden underlaying solutions not jus obvious observations

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qdaddy

Copper - Posts: 133

Joined: March 06, 2006

Posted: November 11, 2008 at 9:34 AM / IP Logged

wow no one with solutions here anybody with similar experience

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amp noise

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