how to make preamplifier for amplifier

how to make preamplifier for amplifier:

how to make a preamplifier. if we need quality sound. we have used this circuit in our amplifier to make a quality sound. if we don’t use this circuit in our amplifier. the amplifier will make a lower sound. here in this circuit, we can input the audio as audio-R and audio-L and we can get the output as audio-R and audio-L.

The front side of this circuit.

The back side of this circuit

transistor circuit diagram of 2sa1943 and 2sc5200

Build a Transformer or construct the transformer. home theater circuit diagram 5.1

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