Hey guys im Jamie from australia i have a Toyota Hiace running 6x Earthquake DBXI-10D subs and 6x PH5000W/D1 amps currently i am doing 155.4 until 2 weeks ago when i smoked a sub and amp. I am running in superstreet 5+ atm and i think i wanna stay in this class, i was think about goin 4x12s or 3x18s but have decided to upgrade to 6x15 subs i have ordered them and are waiting for them as we speak/type. I will get piks up soon.