ok guys. My amp is a soundstream dtr2200. my amp has adjustments for subsonic filter 15-50htz. a low pass filter 40-220htz, and a phase 0-180. along with the gain and bass boost (which i have already set). I have 2 ppi pro 104s in a sealed box. what should i set these 3 settings to. i dont want to set up wrong and ruin the subs or amp. Please help