Quote:
Originally posted by sketch1
When you say power wire do you mean the wire running off the battery or the amp remote wire? They power wire off the battery and the groun wire should not be the same size....amp power wire should be 4 gauge or smaller (I used 1/0 on my mustang) and the ground wire only needs to be around a 16 gauge or so.
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Where did you learn this? Just curious, because it goes against conventional wisdom. The remote turn-on lead could be around 16 awg, if that's what you meant. It all depends on the amount of current through the wire too, so a blanket statement like "amp power wire should be 4 awg or smaller" is true for certain amps, not all amps.
From:
THE 12VOLT INFO
"Ground cables should be the same size (or larger) as the power cable.... we recommend using 10 gauge as the smallest wire size for any amplifier of 100 watts or more. The goal is to provide as much current to the amplifier as it could possibly need for optimal performance."
Yes, ground cables should be kept as short as possible: 1.5' or less is ideal. But if you have a beefy enough cable with a super connection to the vehicle's chassis, you can get away with a longer cable (like I said before, my 2 ground cables are 2-3' in length, but I have 0 noise due to using 4awg ground cable and a clean connection.)