Car Audio

[tri5-73dart]

hello,
I'm not sure if this is the right place to post this but if not please move it to the right place.
I just have a quick question about car audio. I am going to be putting 2 6x9 speakers with these specs into the back of my car: 4-way coaxial sound reproduction system
4-way crossover for strong reproduction in each frequency range 6" x 9" speaker
Big enough to handle your sound requirements without interfering with your passenger space Composite IMPP cone material
Lighter than most other materials, these materials can respond more quickly and create clear, powerful sound Strontium magnet in the midrange
2-1/4" lightweight midrange with magnet fluid and strontium magnet projects rich aural textures 300Watt maximum output
The speaker can handle a fairly high maximum of 300Watts with a nominal rating of 40Watts
Then in the front im going to be putting 2 of these:
Key Features & Benefits:4-way coaxial sound reproduction system
4-way crossover for strong reproduction in each frequency range 6.5" speaker
Big enough to handle your sound requirements without interfering with your passenger space Composite IMPP cone material
Lighter than most other materials, this composite can respond more quickly and create clear, powerful sound Strontium magnet in the midrange
1-5/8" lightweight midrange with magnet fluid and strontium magnet projects rich aural textures 260Watt maximum output
The speaker can handle a fairly high maximum of 260Watts with a nominal rating of 50Watts

Now my question is about amp's
The place I am going to be getting the amps have a 4 way amp which is what i need, with a max of 600 watts. But im not sure if this will handle it the watts from the speakers.
Now they also have a 2 way amp that puts out 760 watts, so would it be better to get 2 of the 760 watt's or will i be fine with the one 600 watt amp.

Thank you.
-Mike