Audio equipment manufacturers are in constant competition with each other, as well as computers and game consoles in the home entertainment market that are increasingly able to produce audio without additional audio equipment accessories. The demand for audio equipment is dependent upon personal income of consumers, and how quickly new innovations for audio equipment are discovered. Independent companies within the audio equipment industry rely on the efficiency of manufacturing practices and the effectiveness of marketing and distribution strategies to generate a considerable profit. Small companies remain in competition by focusing energy on providing specialty components and products for different systems in to appeal to a specific consumer base. Large companies that are already solidly established in this industry possess advantages in their advertising, manufacturing, and distribution practices that give them an edge in audio equipment.