Have you ever wondered how your vehicles audio system is setup, or how things work.
This is a basic setup of a typical audio system. They can also be very complicated with muiltiple components. When you upgrade you bascially eliminate specific components of your system
Most factory speakers are made of paper or a thin plastic, ranging fom 10-40 watts of power. aftermarket speakers usualy consist of a polyplastic or something of better quality, right of the bat its a better product, that magnets on the bottom are usally bigger as well allowing for more power.