2400 wrms how much amperage?

Hi guys,

Just wondering how amperage do I need to power that kind wattage, I have calculated all the fuse's from my amps and it is 440 amps, if I upgrade my alternator to HO 170AMPS, and use 1/0 guage wire and use a 500amp ANL CERAMIC FUSE from the battery will that be sufficent given that I use 2 1.5 farad caps for my 2 mono block amps that push 1000wrms each. And leave my 2-2channel stereo amps that push 200wrms each with out caps. I am worried that according to the awg 0 guage wire can only handle like 300amps. What do you think any suggestion will be well appreciated, I know this ties into my old post but hopefully this is more accurate.

My system

2- rockford bd1000.1, 2-rockford p400.2, 2-rockford p3 12", and 1-Jbl 15" GTI series, jbl 953 components 6 1/2" 1 pair, jbl 6x9 1 pair 

The mods will likely tie this thread in with your previous thread of yesterday.  There's a forum rule in the stickies above that talks about this...

In the first thread you used the phrase "technically 2400 watts total" when you referred to total system wattage.  In this one you didn't say it quite that way.  But it IS technical, insofar as how you have the amplifiers loaded and how accurately you have the gains set.  Counting up fuse values is the common practice but you can also temper that ideal with HOW you actually have the amps loaded.  For example:  are the sub amps loaded at 1 ohm each, or 2 ohms?  And your component amp, is it running at 2 ohms per channel or 4 ohms?  You know that the ratings for these amplifiers is somewhat generous and wattage is referring to lowest impedance load.  Wattage boasting nowadays tends a bit to the "max".  So...

...if your front speakers are 4 ohms (as most are) you can cut that amperage in half.  And if your subs are 2 ohms you can cut that in half as well.  This is referring to the loads on the amplifiers themselves.

Any gains that are set inaccurately (e.g. too high) can cause a great increase in amperage pull by producing those flat top sine waves.  If the system sounds unbearable at your "loud" volume then this is likely happening.  Make sure you take the time to set gains correctly.

Caps:  parallel both caps before the distro block and keep everything close together with short wire runs.  I read that in one of haemphyst's posts the other day and it makes a lot of sense (rather that just capping the mono blocks).

1/0 gauge wire has handled a lot more than what you have, I think.  If it gets warm to the touch at WFO, its not enough.  I doubt that happens.