I am wanting to upgrade my subwoofer from a my current sub to a single sundown x-15. I have a Power Acoustik crypt 1200w 4 channel amp hooked up to 2 Memphis m-class 6x9s and i was wondering if the amp could handle the new sub or if i would have to buy a new amp to power the sub and if i do have to buy a new one what amp would work well. thanks