Rkny, I have learned a little more about the Power Factor Correction device called PFC. Rather than feeding a 110V 60Hz AC signal, the PFC uses a microprocessor controlled circuit containing both inductors and capacitors to feed a PC1-compatible amplifier or preamplifier a 384V steady DC current. The current is then stepped down to approx 30v in the power supply of the amplifying device, and in turn is expected to facilitate a much smoother charging rate of capacitors in the circuit. In turns, smoothly charged capacitors are expected to contribute to reduce distortions and maximize reproduction of low level detail, etc. . . .