How to connect the audio frequency divider and power amplifier

  There are two ways to connect the audio frequency divider and power amplifier.

  One is the electronic frequency divider (active frequency division), which enters the frequency divider after the front stage comes out, and then the mono channel is divided into two or three channels and sent to each power amplifier to output to the speakers. For stereo, mono There are at least four power amplifiers, or even six,

  Of course, the speaker connection is also increased accordingly, directly output to the speaker speaker, no need for power frequency division. Generally used in top HiFi systems.

  There is also a power frequency division (passive frequency division), most of which are integrated in the speaker, no need to consider the connection, just connect the output line of the power amplifier to the speaker in the same phase.

　　 The HiFi systems we are using now are basically like this.

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