Loudspeaker

摘要

A loudspeaker comprises a yoke; one or more vibration driving coils disposed so as to interact magnetically with the yoke when an electrical current flows through the coils; and one or more signal amplifying devices mounted on or near the yoke, the amplifying devices being operable to receive an input audio signal, to amplify the input signal to generate an amplified signal, and to supply the amplified signal to the vibration driving coils.