Production of superior performance home theater AV combination

This article introduces a set of high-performance, low-cost home VA combination, very suitable for the majority of enthusiasts to make. Let the listeners in the living room (about 10 square meters) feel a higher level.

Circuit principle:

Process control. The functions of each potentiometer are as follows: RP1 is the volume control of the surround back channel sound effect, RP2 is the front and left channel balance control, RP3 is the left and right channel volume control, RP4 is the front center channel volume control, RP5 and RP6 are respectively Low and high tone control of the front left and right channels. The function of toggling S1 and S2 is: S1 high level and S2 low level are concert hall mode; S1 low level and S2 high level are cinema mode; S1 and S2 high level are analog stereo mode; S1 S2 is low level for stereo pass-through state.

Component selection and production:

Application:

 

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