FET power amplifier with supreme sound quality

This article introduces a burn-in power amplifier circuit that claims to be equipped with imported original components and has extraordinary effects. When I first heard it, I felt
a little dismissive. Among power amplifiers, there are many who advertise themselves based on how advanced their circuits are and how superior their sound quality is. But after getting this
board, I realized that some "underestimated" the layout of the entire circuit board. Imported five-color ring metal film resistors, all-color VM()S-
FET field effect tubes sit firmly on the board, which is quite popular. Now introduce it to the vast number of audio enthusiasts, hoping to provide some help for your unremitting
pursuit.
    The circuit principle is shown in Figure 7-20. From the figure, it can be seen that this is a full VMOS-FET field effect tube power amplifier.
converter. Since 3 pairs of high-power field effect transistors are used to form a push-pull circuit, the output power can reach izsw, and the distortion of the entire circuit
is below 0. 01%.
    The midpoint potentiometer of this circuit is adjusted to oV± through RP1 50mV; adjust RP2 so that the quiescent current of the power amplifier tube is 500mA. The circuit gain of the whole machine is about 31 times. The specifications of the field effect transistors
used in the circuit are as follows: IRF522. 9522: 7A 100V40W.T0-220 package; IRF150. 9150:40A lO OV 150W.T0-3 package