The working principle of a dynamic coil receiver is to convert electrical energy into sound energy through two transformations: electricity, force, and sound. The sound emitted by its diaphragm is not directly coupled with the air, but radiated through the damping of the front and rear sound outlets. The sound emitted by the diaphragm is only heard by our human ears after passing through the acoustic components (sound chamber and sound outlet). At this point, the vibration of the system is mainly controlled by sound resistance. The larger the sound resistance, the wider the frequency range of sound resistance control. Therefore, we refer to the receiver as a damping control element.

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