hey everyone, i just bought a pioneer 12" 800w max sub today. I'm running it off my profile 400w amp, pushing 200w rms. the sub is rated for 150w rms, and i listened to it before, sounded good, i cranked it, and it sounded like crap. the sub just sounds sloppy... i have the gain and bass boost set up all the way, could this be the problem? if so, what would i set it to?