do i have to upgrade the big 3 with.

The wire doesn't matter... It's the load being placed on your alternator, PERIOD. An additional 1200 watt amplifier (if digital, this will be the best case scenario, if class A/B, the numbers will be HIGHER) will be another 92A worth of load that the alternator has to supply current for, and I expect that that alternator ISNT more than about 65A as it is! Upgrade your alternator... which necessarily means an upgrade to the Big 3 as well.It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Just curious as to what wire you have running where that is better than car wire for a car application. Did you capture a downed alien spacecraft and steal it's technology? Where can I get some?

sarcomax wrote: Just curious as to what wire you have running where that is better than car wire for a car application. Did you capture a downed alien spacecraft and steal it's technology? Where can I get some?

Funny, but the stuff DOES exist... A good quality, flexible welding cable is a place to start looking for such a specified cable. Teflon insulation, rope lays, mega-multi strands... they all exist. As far as I am concerned, in the car all you are REALLY worried about should be temperature and chemical resistance, first and foremost. Multiple strands are a good place to look next, as the car (being a place frought with vibration) will be quite a bit happier with a nice flexy cable... it'll just lay in place nicer, too. I would finally look for abrasion resistance, although this won't be QUITE as important a spec, certainly. A properly installed power cable should already be routed where there won't be a potential for abrasion.It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."