Components of a loudspeaker. Electrical signals sent through the
coil cause it to act as an elipsis Learn more about loudspeaker
with a free trial on Britannica.com. A loudspeaker, speaker, or
speaker system is an electroacoustical transducer that converts
an electrical signal to sound. The term loudspeaker can refer to
individual transducers (known as drivers), or to complete
systems consisting of a enclosure incorporating one or more
drivers and electrical filter components. Loudspeakers, just as
with other electroacoustic transducers, are the most variable
elements in an audio system and are responsible for the greatest
degree of audible differences between sound systems. To
adequately reproduce a wide range of frequencies, most
loudspeaker systems require more than one driver, particularly
for high sound pressure level or high accuracy. Individual
drivers are used to reproduce different frequency ranges. The
drivers are named subwoofers (very low frequencies), woofers
(low frequencies), mid-range speakers