Home-made high-performance four-dimensional surround sound amplifier circuit

  
The surround processing section C1891A is Sony Corporation of Japan launched the four-dimensional
Home-made high-performance four-dimensional surround sound amplifier circuit - schematic

home theater surround processing circuit parent roll phase shifting circuit matrix surround sound amplifier. Also set up a concert hall, a cinema, three kinds of analog stereo sound field effect mode. Application specific electrical path shown in Figure 10-20 r each function pins as outlined below: , feet to the left and right channel output; , feet to the left and right sound channel input; a feet surround output; a , pin state select pin (connected to + 5v level to change the sound field mode), the use of set circuit CD4017 made one-button selector switch status, and has shade indication dare fruit good; pin effect adjustment ends.




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