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quick questions on grounding an amp


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Posted

First off how "golden" is the 3ft ground wire rule and why? And second is gounding my amps to the negative post on my second battery a bad thing?

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Posted

3 foot rule is mostly bullshit. its all about resistance. if you use a big enough wire then it wont matter. the best ground is a negative run from front battery to back. and yes, grounding amps to the battery is a good thing. quickest complete circuit.

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Posted

First off how "golden" is the 3ft ground wire rule and why? And second is gounding my amps to the negative post on my second battery a bad thing?

On grounding the amp, the shorter the wire is the better. Less wire = less resistance. More power.

Grounding to a second battery is just fine as long as the battery itself has a big enough ground wire to the chassis itself.

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Posted

Ok

http://www.dcsoundlab.com/

2008 Chevy Impala (Daily Driver)

Pioneer touchscreen w/navi

1 DC XL 15" (around 4cuft ported box)

1 AQ2200

1 AQ90x4

Memphis MClass 6.5s (front doors)

Memphis MClass 6x9s (rear deck)

stock alt & front batt; 1 Red top in the trunk

139.2db sealed (on my old JL1000/1)

140.0db outlaw (on my old JL1000/1)

1992 Chevy S-10 Ext cab. (project car)

Coming Soon: Bagged with some kind of wall.

Posted

Not forget that your earth ground must be 0 ohm resistance..

Posted

So just get the biggest wire that will fit in the amp for ground as short as possible to the frame/chassis or ran to the battery? Is there a way to test for a good ground? Right now I have my ground under the seat to the body...wondering it it's good or not

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