A component speaker is simply a car stereo speaker matched for optimum sound reproduction. In most cases a set of tweeters, mid-range speakers and a subwoofer are all matching using a crossover to limit the high frequency range each component must reproduce correctly. Component speakers can be used with many different head units including CD, DVD and LCD. The advantages of component car speakers over other types are that they are easily added on to existing car stereo systems or they can be purchased as a component only, cutting cost and saving space.
For component speakers, it is much easier installation as there is only one set of speakers required instead of multiple amplifiers and crossover networks to wire. One component speaker is much easier to install than two or more. In addition, it is usually much easier to replace a single component speaker as opposed to several amplifiers. Also, it is common for component speakers to provide a great sound quality even at small volumes. They are not very expensive and can be found at most automotive aftermarket stores and even in some standard music retail stores.
There are some disadvantages of using component over coaxial speakers. The main disadvantage is that component speakers tend to produce less sound pressure than coaxial speakers, which can cause some sound distortion. Another drawback is that component sets are designed to fit in narrow spaces, making them hard to place in places where an amplifier and enclosure are needed. However, many component set manufacturers have listened to their customers and have developed enclosures that allow for the use of almost any size amplifier or speaker. These enclosures are usually referred to as component boxes.