car audio

[_paralyzed_]

I'm redoing the system in my van. I'll be running 50x4rms amp and a 1000x1rms(at 1 ohm) amp at .75 ohms, so I figure my rms wattage at about 1500.

Now, the mids and highs will be high passed at about 80hz so I doubt the 4 channel will pull anywhere near its rated power.

My question is: will my stock electronics take this or be able to dish it out?

I've got a 100amp alternator, thats only 1440 watts w/o efficiency losses or factoring in the vehicles electrical needs. Is it all about the battery? I have a v-8 and live in MN so I always get the biggest battery I can get (I beleive 900cca?) but have no idea what the continuous discharge would be. (I know it will only pull max current during bass peaks)

It's not worth doing if I have to add a battery, and also not worth doing if the vehicle cannot meet the systems electrical demands.