Thank you ; 1971gto455ho as your response is appreciated but however, personal '' opinions '' regarding the sonic merits of Exotic power cords on a system as you have noted was not the intent of my thread. I thought that my inquiry on adding these cords to a specific piece of equipment was clear but obviously it nowseems that I have unfortunately missed that mark. Shunyata's Omega QR or QRs power cords are not inexpensive by any means and the purchase of them at least for me, has involved a lot of questions and research if I may. I have been fortunate ; blessed one could say, that I have been able to add two of these cables to my system with very positive results. One was added to my power conditioner and the other to my amp. Now, I would or wanted to hear from somebody that ahs added these specific power cords to their pre-amp and or CD player or streamer and what were the results. So, my question was specific and not about what power cords do or don't do yo a system, which as you noted ' '' a topic that's been beaten to death and therefore boring ''. I was not playing in that - sandbox......