buzzing sound

[Oscar0421]

I just installed 2 JL tower speakers and sub to a five channel amp. The tower speakers are bridged. I am getting a buzzing noise when I try to turn the gain up on the amp. I am thinking it could be amp ground or rca cable ends touching. If I turn the gain over 40% the buzzing gets pretty bad. If I keep it under 40% it goes away.

 

[anmut]

I get the same and my install was done by the pros. Only happens when there's no sound (hard to hear) or when the blower is on. For my install, it has to do with the LED controller.

 

[Oscar0421]

I connected my phone directly to amp via rca to headphone jack and got no buzzing. Which lets me know its either the rca cables, rca spliters or radio grounding issue. Tonight I am going to run a better ground for the radio. The infinity prv340 radio only has rear, front and sub rca outputs. I have splitters to run the 5 channel amp and 4 channel amp.

 

[Oscar0421]

I get the same and my install was done by the pros. Only happens when there's no sound (hard to hear) or when the blower is on. For my install, it has to do with the LED controller.

Did you ever get this fixed? If so, what did you do?

 

[ctyke]

Did you ever get this fixed? If so, what did you do?

Have everything connected to the same ground, I had this issue when I was doing a dry run before I mounted everything.

 

[mrcleanr6]

Yes that noise is a ground loop. Try the recommendation above. If you really cant figure it out then they do make something called a ground loop isolator. It goes inline on your rca cables