well the only reason i am running two red tops is because my friend recently upgraded his system to kinetik energy cells and he gave me a deal of 100$ for both of his old red tops. i am saving up to either get a couple of kinetik energy cells or a couple of optima yellow tops. and i am running different subs is because well i am broke for the moment and my friend also sold me the kicker for the price of 40$ so in all i think its a good start for now but the final plan is to run 3 kicker comp vr's 2010 models.