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yea. wattages add up for multiple subwoofers.

so it counts for the speakers too not the subs

If you're amping speakers, then you use the rms wattage of each for each channel (2 channel or 4 channel).

http://www.onlinecarstereo.com/CarAudio ... ctID=16692

so let me guess get right that amp is perfect for my application so i think so and its 100x4 rms is that 100 rms watts per speaker???

Yes, 100rms x 4 = 100 watts per speaker

the "power handling ratings" on speakers [SEE FAQ SECTION] is nothing but a thermal rating for how much heat (measured in watts) the speaker's coils can handle without physical damage.

This has nothing to do with how much power the speaker needs to reach full output, or excursion.

the power required to drive the speaker is usually considerably less than it's "RMS power handling" spec on the box.

For door speakers and component sets, most times 50-75 watts per channel is all you need from a good, clean amplifier.

^ Also a good thing to keep in mind when setting your gains

very cool thank`s for your help it looks like i will be going with the crunch amp, it also says it is bridgeable do you think it is a wise idea to bride the speakers?? or just hook it up normally??

I'd stick with running the speakers in the normal fashion... allows for balance... bridging better suited for running mid bass

oh so kinda like if i was using a component speaker then i could bridge,
so basicly regular speakers hook up normally components i have a choice of bridging