A sound system typically consists of audio sources, such as music players, and components like amplifiers, speakers, and cables. The audio signal is sent from the source to the amplifier, which boosts the signal's power. The amplifier then sends the amplified signal to the speakers, which convert the electrical signal into sound waves that can be heard. The quality of the sound system depends on the quality of the components, including the speakers, amplifier, and the source material itself.