800 Watts too much for stock system?

[tracyrick 10+ year member]

I'm putting in a 300/2 and a 500/1 - both JL Audio amps.

Car is an '07 Impreza with stock battery and alt.

1. Will I experience electrical problems like dimming lights from 800 watts?

2. Will the "Big 3" make a difference?

I searched but I can't find a guide on amp wattage capability of stock battery/alternators. Is there such a guide?

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[Big Dee 10+ year member]

no

 

[PESteele 10+ year member]

im running 1000 for my Q and then 300 for all speakers and getting some dimming but it all depends on your alt. Some cars ive gotten dimming with 800 some get none with 1200