Thanks for the link, randy-11. There's a reason I specifically asked if anyone has heard a difference in power cord with the Ref 6. I used to own an Audio Research Reference 75 SE. I heard a subtle but not ignorable difference much like jperry noted when I swapped a Nordost Red Dawn cord for the stock unit. Surprisingly, I heard an even bigger change when swapping in a Synergistic Black Quantum fuse. So, I guess I fall into the camp that cords and fuses can make a difference. I guess I felt maybe there would be a bigger change on electronics that draw more current, amp vs preamp for example. But I don't know that. And I have tried two different power cords with Ayre MX-R Twenty amps when I had them, and noticed No significant change in sound.
