I have a 2003 Trailblazer, and I am looking to get a new system in it. The problem is, I don't have the money to get subs or an amp. I plan to just get a pretty basic Pioneer head unit, and 4 speakers. The only thing I am worried about with this setup is the bass. I want it to have decent, good sounding bass, but I don't need it to be overpowering. Can I get a good all around sound with just new speakers and a deck?