Good Earth Point?

[ash sv6]

I have 3 amps running and haved earthed the amps all to the same point. I have used the nut & bolt that holds the latch that the centre part of the rear seat locks onto, I sanded away the paint.

I have run the power cables and RCA leads down seperate sides of the car.

Problem I still have is a pop when the engine is started, could it be the earth point? Any ideas, its a VZ sedan with the factory HU.

 

[azzfox]

im pretty sure iv read somewhere that your not ment to earth more than one amp to the exact same spot, theres ment to be a space between them (not on top of each-other). i could be wrong.

 

[253@7k]

im pretty sure iv read somewhere that your not ment to earth more than one amp to the exact same spot, theres ment to be a space between them (not on top of each-other). i could be wrong.

Should not matter.



Something to do with h/u maybe if it pops on startup?

 

[ash sv6]

Should not matter.



Something to do with h/u maybe if it pops on startup?

The earth or internally??

 

[253@7k]

The earth or internally??

Dont quite understand you there.

What I am trying to say is that if a pop is occuring on startup, then the interferance will have to be coming from a power cable assoicated with starting

the car. Unless the pop or another sound is present when the car is running?


If a power cable runs near your RCA adapter things then that could cause it as well. Forget what I said about the h/u, I just remembered stockies dont have preouts..

 

[garfa]

if you have your amps earthed to more than one point then there can be a "ground loop" created, eg a type of noise induced into the system.
i have heard of the problem happening when the amp is sweiched off, not on. but i have very limited experience.

 

[ascension24]

You want the H/U to turn on, then the amps.

If its the other way round, you normally get a pop.

Probably because your still running the stock h/u, after market one would prob fix the problem.

 

[ash sv6]

The pop only happens if the stereo is on and then I start the ignition, if I turn the stereo on while the car is running no pop?

 

[253@7k]

Is it a really bad pop?

 

[ash sv6]

Pops pretty bad, fairly loud and cant be good for speakers?