Hey Justin, like nick said, dont forget about those other speakers. What i got and think is very good is that instead of having front and rear speakers in the car, i have a component set up front and the rear. So thats 4 tweeters instead of just 2. You'd be amazed at how good the sound gets filtered to the filter to perform its specified job. So now, you got 4 tweeters producing the highs and 4 speakers producing the mids. Now the other thing i have in my car is the 2 gauge power ran into a distributer block, so i can have another amp to power stuff. I use that amp to power a pair of 6x9's in my back dash.
Now, I got 2 component sets, a pair of 4-way 6x9's, w/ a pair of subs goin.
Trust me, you'll definately be heard. And even if you've got your subs off, you'll be heard for your other speakers, which also contribute to a great deal of having a great stereo.
And they all lived happily ever after.
THE END