Ok, first off, I would like to say im a beginner, and quite inexperienced with equipment. I can however play pretty damn good, so take it easy Anyways, I have a smaller practice amp that ive been using, just for at home. I go to other people's houses and they have much larger amps. So i have experienced the improved sound. My question is, what is all this i hear about cabinets and heads and stuff like that? I know that they had a fairly large amp on the bottom, and i guess what would be called the "head" on top. But what does all this do, and if u have a larger amp, do u need a head? Im quite confused while reading these threads. Please give input.