how many watts is (good) 4 gauge good for?

[the mange 1]

im about to do my big 3 in 4 gauge this week, but I'm wondering if I should just sack up and do my amp power/ground + big three in 1/0 gauge instead, for 600w rms.. would i notice any difference or would i just be wasting my money? (i have stock electrical w/ only 4 gauge going to my amp right now) thanks. this is my third question of the day sorry everyone!

[Duran 387]

1/0 gauge.

[dtcharneski 0]

4 guage is good for your application but if you ever plan on upgradeing to more power I would go ahead and do it in 1/0 gauge. better to get it out the way now so you dont have to do the big three all over again.

[loudcav 1]

you may not need the big 3 I dont have it on my daily driver using a single sax 100.4 front 2 channels on the highs and the rear channels bridged to the subs