Buzzing Sound in Speakers Rpm - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Audio/Video Talk about Chevy Cobalt Audio/Video and other mobile electronics here

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 07-29-2013, 11:14 AM Thread Starter
Newcomer
 
Join Date: Feb 2011
Posts: 24
Exclamation Buzzing Sound in Speakers Rpm

i installed a new stereo in my balt a while back, and this buzzing noise that comes from the speakers drives me nuts. I have a pioneer avic touch screen with navi and all the interiors are powered through my four channel amp. There is a faint buzzing noise coming through the speakers that changes its pitch dependent on my rpms. I think it may be interference coming from the power cable into the amp interfering with the signal in the cables. Does anyone else have this problem and how did they fix it.
i made sure my ground is secure, it goes directly to the battery now. I did use cheaper rca cables when installing it could this be the problem? how could i reduce the interference when the wires need to run pretty much right next to eachother
loizzo is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 07-29-2013, 11:25 AM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
You are suppose to ground amp and whatever other device closest possible to body ground. By running ground cable to battery you create a ground loop.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #3 of 6 (permalink) Old 07-29-2013, 11:54 AM
Staff Alumni


 
Jmesl8er's Avatar
 
Join Date: May 2011
Location: NKY
Posts: 1,316
Are your RCA wires away from your power and remote wires.
Jmesl8er is offline  
 
post #4 of 6 (permalink) Old 07-29-2013, 01:28 PM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
Also make sure input levels are not too low. You might need to balance amplifier output power with input level. In other words you might want to reduce the output gain and increase input level to minimize noise pickup and increase signal to noise ratio.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #5 of 6 (permalink) Old 07-29-2013, 05:03 PM
Veteran
 
i944scania's Avatar
 
Join Date: Jul 2012
Location: New Hampshire
Posts: 563
Garage
Ground issues

07 LSJ turbo swap
-to4e 50 trim .63 a/r @ 19psi
-2.5" intercooler system with zzp bov
-2.5" exhaust
-turbonetics deltagate II w/voodoo boost controller
-3" intake
-siemens #60s
-aem uego wideband afr
-HP custom tune


i944scania is offline  
post #6 of 6 (permalink) Old 07-30-2013, 08:53 PM
Super Moderator


 
Plain Jane's Avatar
 
Join Date: Mar 2013
Location: Montreal, Quebec
Posts: 3,860
Garage
Would wrapping up the cables together cancel out some interference? (Think wheel speed sensor)

'07 Eclipse GT build thread - 280whp, 254wtq
Plain Jane is offline  
Sponsored Links
Advertisement
 
Closed Thread

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome