Earthing a battery in a VS

[MGNick]

gday, my sound system is playing up, ive always had a winding/whining noise coming out of my rear speakers but the only time i could hear it when my volume was on 0. since then i have upgraded my sound system from a 1000W 4 ch that powered 2 6x9s and bridged a 12 inch 1200w sub.

now im running 250w 6 inch splits.
300 watt 6 inch speakers amped from the 1000w 4ch
and a 1000w dual subwoofer off a 1000w amp.

the noise has increased ten times worse, but if i hit a knock on the road it will momentarily stop the sound, other small things tend to affect it. it always sings in tune to revs, the higher the revs the louder and more frequent this 'popping' sound is.

i was wondering if i need to run a more powerful earth or something as im not too savvy with how power works and what not off a car battery.
was just wondering if someone could help me out.
(RCA's and power are run on seperate sides of the car)

thanks in advance.

[wraith]

You love those max power figures don't you :P Have you checked the ground is OK to the amp? Turned down the gain a bit?

[seq4x4]

You havnt grounded it back to the battery have you?

Also have you tried the $10 fix of the alt noise reducer?

You can get grounding and voltage stabilizer kits. Their premade so their going to cost abit.

However, my sound system, before the ground kit, did not make one noise.

Could it be as simple as a wire touching somewhere, the speaker polarity's wrong?

[woteva]

Could it be as simple as a wire touching somewhere, the speaker polarity's wrong?

Speaker polarity would cause out of phase, not what the OP is experiencing.

To the OP, it could be a fault inside the amp if your wiring is ok.

[seq4x4]

My mistake. Not to crash hot on the sound system side of things. Just my past experiences with sound problems.

[MGNick]

lol max power figures was just to save people asking questions on what im running.

forgot to mention, as soon as the car is off the sound disappears, ive checked the wiring and it all seems okay its just so annoying when you want peace and quiet or that near of i get driven to near insanity.

[MGNick]

and no grounded straight from amps to back seat metal.

[Dobby525]

what kind of head deck are you using?

[MGNick]

what kind of head deck are you using?

i dont know what a head deck is :S

[Cracka]

My money is on it being internal in the amp.

For reference however check this thread out.

The Kings guide to elimanating stereo noise.

[MGNick]

My money is on it being internal in the amp.

For reference however check this thread out.

The Kings guide to elimanating stereo noise.

thanks! i will go through this tomorrow when i get a chance, really appreciate it! exactly what i was after

[VrWagz1]

You need to first of all find out if the noise is in ur power cable or RCA's. Unplug ur rca's and see if it goes, if it does then you need a $10 line filter that you plug inline with the rca's. If its still present when the rca's are unplugged(and the amp on) then its in your power cable and you need to consider a power line filter as the noise cold be coming from ur alternator or your high tension.

[Dobby525]

try earthing it out to one of the screws in the tail light that is where mine is earthed out to and it is fine ... i had mine earthed to the same place you do in my vt commodore and it made the same sound so my thought is that it is not a very good earthing point to earth to just try different places to earth to and see what happens..
and a head deck is the cd player lol

[MGNick]

ah ok, will all my rca's out it still makes the noise it just moves around the car to whatever is still plugged in and with them all out i could still hear it some how, its not my 'head deck' because changing songs or powering off does not affect the sound at all.
these are all good pointers, things i wouldnt of thought of thanks to all!

[ephect]

the reason the brand of your headdeck was asked, because if its a pioneer, an internal fuse blows and causes the same issue your having. No you cannot replace the fuse unless you know how to solder and are willing to disassemble your headdeck.

it does help to answer all questions that are asked! it'll help us and you in the end even if it does sound insignificant.

it does sound like its one of your amps, either internal issue or ground. a good test is to 1 by 1, remove power to each of your amps and test for the noise again, this will help pin point which amp (if not all) are giving you dramas.

[MGNick]

sorry mate, got a sony head unit.
yeh ive gathered that thanks to the help from everyone.
thanks all for the help and appreciate it, hope to be able to return it to you one day.

cheers, Nick