I have two 15 inch kicker l7s. They are currently hooked up to 1 Kx1200.1 amp but I have two identical 1200.1 amps and I want to hook them up separately to each sub. I have a 2 farad cap, a regular battery, and a 140 amp alternator. The capacitor is hooked up but i dont think its charged properly at the moment. What would i need to get for power to run these two amps?