Removing alternator whine

[marc_scirocco@yahoo.ca (Marc scirocco Québec)]

 --- Allyn <amalventano1@comcast.net> a écrit : >    
If you want to isolate noise to the whole car
> (and therefore the stereo as well), you would need
> a pretty big capacitor (about a farad). If you
> install it just on the amp, you will have to be sure
> the head unit is on the same circuit (i.e. after the
> cap). This means relaying the switched ignition
> power (since the ignition power going to the amp
> would be unfiltered).

With electronic equipments, alway, alway, always use a
COMMON GROUND. With as big a conductor as possible. If
needed, isolate the equipment from the car to be able
to run one single ground.

>     A remote cause of your alternator whine may be
> ground loops. If the amps/head are low grade they
> will pick up the ripple voltage in the low voltage
> inputs and amplify them.
> Al
> 


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