Quote:
|
Originally Posted by Ken@BSW
The negative battery cable is always the absolute best grounding point. The only reason that it isn't normally recommended is that in most cars, the battery is in the front, and this would mean an extremely long ground cable.
|
The negative battery cable is probably the best grounding point if you're using non balanced inputs. I tried grounding my speaker level balanced differential Zapco amp to the same post that the negative battery cable goes to, and the noise was really bad. This was before I called Zapco and found out that the balanced signal needs to be grounded to the "signal ground" on the amp chassis.