Conclusion: I bought these speakers along with the kenwood kfc-st01 tweeters to compliment my 2 alpine type r subwoofers and hifonics Brutus 1200. Being that my sound system is pretty bass heavy these speakers and tweeters keep right up with my system. Highly reccommend!!!
Summary: The speakers were perfect for my '04 alero. Fit like a glove. They were very easy to install and sound excellent. I only wish I could have afforded to replace my Power Acousik 6x9's at the same time because I'm certain Kenwood 6x9's would sound much better.