I have a rockford 3002 amp and a sony xplod amp (new 5-sided amp) connected to two 12" 1200 watt each sony xplod subs. i also have the pioneer 9300 deck. what should the settings on my amp be and if someone can answer this, what should all my settings be on my head unit? i know this is mostly personal preference , but i want the most outta my system. someone PLEASE help, thanks a lot!