I have had the Ocellia reference power cord in my system for over 9 months. I have used on CD player, transport and dac in my system and have heard it on pre-amp in another system. More recently, I added the reference silver interconnect.
With both of these cables, there is a degree openess and natural sound that I have not heard in any other cable. The sonic benefit is across all frequencies - nothing is emaphasized or out of balance, just sweet, open, relaxed & natural.
The Ocellia cables IMO perfrom well above their price point and are a fantastic value.