This is an amplifier circuit diagram using STK4191. This circuit diagram can make 50+50 watts of output. Each channel is 50 watts. It’s a stereo audio stk4191 ic. Here we can use a minimum of 20v-0-20v to 45v-0-45v maximum. The best voltage is 35-0-35 voltage.

This is an Amplifier circuit using STK4141. This is a stereo diagram. We can use a maximum of 24-0-24 voltage on this board. This diagram can make 50+50 watts. This type of circuit makes a musical sound. The per channel is 50 watts.
DIY amplifier circuit using STK4141:
This is a DIY amplifier circuit using STK4141. We can get 25-0-25 watts using this diagram. We can use 15-0-15 voltage to a maximum 24-0-24 voltage. The voltage depend with the IC quality. STK is the best sound quality amplifier. Sony Sound are maximum use STK IC. It’s a stereo audio diagram. This diagram also inculide bass tone circuit with a pre-amplifier. The pre-amplifier uses the 4558D IC.

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