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Grounding amp to battery vs chassis?

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I personally like grounding to the chassis. Reason being is EVERY TIME I've grounded to my battery I'll get terrible whine. I actually have a charger too. The stock ground isn't bad, I'd try both and see which one you like more.

do you have a pioneer deck by chance?

Yup, I never found a way around that stupid pico fuse problem.

hmm maybe your whine was because of your h/u then?


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I personally like grounding to the chassis. Reason being is EVERY TIME I've grounded to my battery I'll get terrible whine. I actually have a charger too. The stock ground isn't bad, I'd try both and see which one you like more.

do you have a pioneer deck by chance?

Yup, I never found a way around that stupid pico fuse problem.

hmm maybe your whine was because of your h/u then?

That's what it seems like. There's a way to fix it permanently but I never got around to it. Switching my ground from the battery to chassis stopped it though. Like I said before, the problem only happens with my front stage amp.

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I personally like grounding to the chassis. Reason being is EVERY TIME I've grounded to my battery I'll get terrible whine. I actually have a charger too. The stock ground isn't bad, I'd try both and see which one you like more.

do you have a pioneer deck by chance?

Yup, I never found a way around that stupid pico fuse problem.

hmm maybe your whine was because of your h/u then?

That's what it seems like. There's a way to fix it permanently but I never got around to it. Switching my ground from the battery to chassis stopped it though. Like I said before, the problem only happens with my front stage amp.

I'm pretty sure I read that soldering your rca outputs to the frame of the h/u fix that


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Boosh- dont give bad information and ground your rcas

PioneerFix.jpg


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I always ground straight to the batteries

I see no reason to ground to the frame other than laziness. Why spend a shit load of cash for good OFC wire and terminals only to connect it to the mild steel chassis that does nothing but add resistance?

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Cant explain why and my own logic tells me to go straight to battery too but I had the same noise issues by grounding to the battery. Cant explain it but when changed to chassis it went away. And no I dont have a pioneer. and it made the noise with no head unit even connected. Noise issues are some of the most aggervating bugs in car audio.

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Grounding to the battery is optimal as long as the battery ground to chassis is upgraded to the same size wire or bigger of your amp.

-Drew


detail.gifI am a United States Military Arts and Crafts Professional. Sand it off, Paint it on. detail.gif

uhoh_45 said:
dont be a pussy P give the jeep to drew

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What most people said.

Ground directly to the battery so long as the ground from your battery is equal to what is required of your amplifier.

The reason why you're getting noise from the different options is because you are creating a ground potential difference by using multiple grounding points or poor grounding points. The reason why people say to ground your RCAs is it eliminates the chance of the Amp trying to ground through the RCAs.

To put it simply get a good ground to the frame(check if you have a unibody or body on frame style vehicle) and run that ground to your rear battery and then run your amps from that.

Also you can test the difference in potential between grounding points to isolate if that is a problem using a DMM.

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