Itu use dual polarity power supply to work, then you may use this power supply to supply the circuit. Use 5A transformer with center tap output, change the diode with bridge diode 5A, use capacitor minimum of 6800uF/63V for better output supply.

200 Watt High Quality Audio Amplifier Schematic and PCB Layout

Schematic diagram:

Component part list:

Description:

Top PCB Layout:

Bottom PCB Layout:

Good luck in bultd 200W high quality audio amplifier project

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