I think I finally understand heads. a head is basically a replacement for the stock electronics in an amp? meaning I could go out, buy a 100 watt speaker driver, then hook a 100 watt head up to it, and it would work, and have 100 watts, and if i hooked a 200 watt head to a 300 watt driver, it would have 200 watts, right? but then how do you hook up a head to a normal cab, do you just unhook the speaker wire from the stock electronics and then run wire to the head? 
