The alternating current in the stereo system is used to convert the audio signal of the stereo system. After amplifying the changed signal, the amplifier circuit in the stereo drives the speaker, and the speaker converts the alternating current energy into the vibration of the paper basin and makes a sound.
Extended data:
When connecting audio devices, pay attention to the difference of input and output signal levels between devices. If the input signal level of the previous equipment is too high, it will produce nonlinear distortion, otherwise it will reduce the signal-to-noise ratio of the playback system and even fail to drive the amplifier of the next equipment. Therefore, it should be noted that the level difference between devices should not be too large.
If the signal level does not match in actual use, the input signal level must be lowered by the attenuation circuit or raised by the amplification circuit. It can be sent directly to the preamplifier.
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