SurferDud50

I'm looking into getting a all in one subwoofer for my car, something thats max $200 AU. I want something that will add bass to the music, rather than overpower it. I was looking at one of these two subs, either the Fusion CP-AS1080 or the Fusion RE-SS18, has anyone had any experience with these? And what are your recommendations for subs in the same sort of category? Thanks