Need some advice from anyone who knows a bit about subwoofers ect. I currently have a half decent clarion head unit and running from that i have a vibe 10inch black air ported box with built in amp in the boot and I also have a pioneer compact subwoofer under my drivers seat and some 13cm alpines in the doors ect. Now I have managed to get it sounding mint a few times and then messed it up by trying to make it better ect. What i want to know is what freq should I be at as both my subs are adjustable and also what gain and phase. I mostly listen to deadmau5, pendulum, eddie halliwell, electic house ect. The bass at my head unit is adjustable in terms of freq, and also a number that goes from 1 to 2 (dont have a clue what it does) it is also has a number between 80-100 or something like that of the top of my head, I also dont know what this does. i know i can get this system sounding good and not have to touch it again so any advice would really be helpfull. The Bass i am really after is the low stuff you feel in your back ect but without it being at a stupidly high volume.