How to make home theater amplifier?

How to make a home theater amplifier:

How to make home theater amplifier. here used one IC. STA540 is a 4-channel amplifier IC. This IC has 4 inputs and 4 outputs. here this circuit has 3 inputs and 3 outputs. 2 for stereo and another 2 inputs make in a bridge mode for Bass speaker. we can use 8 voltage to 22 voltage in this amplifier circuit. 

How to make home theater amplifier
 

Using 12 voltage it can make 4+4 watts and 8 watts. using 18 voltage it can make 9+9 watts and 18 watts. using 22 voltage it can make 17+17 watts and 34 watts. 

we can connect directly with the speaker. 

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