JR C500 Power Cord

I currently have the Rowland C500 fed with a Lessloss PC from a Hydra4 PLC. The C500 replaced a Plinius integrated and with this Plinius the Lessloss PC IMO bettered a Shunyata Anaconda Helix in comprehensive listening tests. Not sure though if the same comparative result will be similar with the Rowland, and unfortunately I no longer have the Anaconda to test.

For those with experience with the C500 I will appreciate your thoughts on power cords. I'm also wondering whether the PFC built into the C500 power supply makes this insensitive to power cords.