Why would you do this? It is most likely going to sound like crap. Get four 10's or 12's- all the same brand and model. For amplification, you need either one powerful amp, or two identical amps. Decide what you want, sub wise, then you to figure out your wiring options- based on voice coil configuration- then decide what to do about the amp situation. Depends on your budget, goals, how much room you have for the enclosure for the subs.