Trying to Fix Problem, Size Earth

[COMMY VP 666]

hey all

what size earth is best for car stereo amp?

thanks to all

[Trayner]

well its best to match the same size wire as the power cable that your using for the amp

[lil_mickey]

well its best to match the same size wire as the power cable that your using for the amp

as a minimum... can be bigger if you want... and make sure you earth it to a solid steel place with nut and bolt preferably.

[COMMY VP 666]

yeah i got annoying buzzing, whats a good size for power and earth, lil bit more than minium for no problems.

what size you recon?

[hakhawk]

what size amps are you running now?

are your rca's on the same side as the power cable?

[holdenboy]

Upgrading the size of your power/earth cables generally wont get rid of "buzzing" or engine interference (unless your using like 16awg cable). As a minimum you want to use 8awg power/earth cable.

Normally this is caused by a poor earth connection. Make sure you sand/scrape back the area to bare metal, and as lil_mickey said earth it to a solid part of the car. The rear seat belt bolt is a good spot.

[COMMY VP 666]

yeah nah iv done everything possible to stop it

last thing is putting proper cable and a bigger earth wire at the cd player unit

[COMMY VP 666]

size amps i am running now is a 1000w and a 600w

[Captain Kermit]

What model amps, and is it 1000w RMS or 1000 peak/max/pmpo? If it's RMS you'd want a 4gauge earth each.

[HCVP]

What do you mean buzzing noise, from the speakers do you mean while the music is playing??

[bezz]

In your case mate id run at least 4ga (5.19mm diameter) power to a distribution block, which would then split to 8ga to all of your amps. From there earth each amp to the chassis with 8ga (3.26mm diameter).

Here's an example of a fused distribution block:
http://www.jaycar.com.au/productView...k&form=KEYWORD

Here's a good American Wire Gauge to mm conversion table:
AWG to square mm Wire Gauge Conversion