Hi experts,

I have a 5 channel amp. My amp recently got a little background noise. It goes along with the engine RPM. If RPM goes higher, the noise pitch will be higher too.

I went to check the amp. When I took off my left right speaker, the noise goes away. Put it back, noise back on.

Could it be the speaker? or the ground point?

please advice, Thank you!

 

Run the A/V wires on the left side of the car. and the Power wires on the right side of the car, if that dosnt eliminate your problem then idk.

 

with good rcas you shouldnt have that problem.


what head unit are you running pioneers are known to have problems with alt whine. try taking some wire and wrapping it around the outer end of the rca cable on one end and grounding that wire. that should take out the noise.

 

Aside from RCA's, check your ground connection to amp. You stated this noise just started? Did you move anything where the amp sits? any changes at all?

 

Are the speakrs mounted directly to metal?

 

Thank you for the reply guys.

Yeah the noise just came out. I have the Pioneer head, and the noise started coming out couple days ago. I didn't move my amp around and the speakers are mounted on brackets.

But just so weird that after I remove the wire for my front left speaker, the noise goes away. If you put the front left speaker back on, noise comes out.

Could it be my amp has bad front left speaker terminal? Bad ground?

 

sounds like what i went through. turns out it was a faulty preout on the head unit. try this, swap the input from the head unit to the amp. see if the noise goes over to the right side.