I am a newb at subs and amps. I recently got installed two kicker 12's cvr's with a 750.1 zx kicker amp. On it there are three dials, bass boost, gain , and frequency. I listen to rap and am wondering what the best place to put these controls at. Also there is a button for input high and low. Please tell me what you recomend I do to get the most out of my system thanks.