Audio Research Ref 6 power cord

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.

Tried a Synergistc Research Black Quantum fuse in the Ref 6. Not a subtle, but quite a significant difference, especially in the high frequencies. Less wooden, more crystalline, especially with piano. For the cost, I highly suggest anyone try one.

Thanks jafant. I haven't heard Transparent's power line, other than at shows, but I have heard their interconnects and speaker cables, and they are Excellent. 

Between Sain line systems power cord, Synergistic Black and Blue fuses, and cryogenically treated tubes, I think I pushed about as much out of the Ref 6 as I could. And it is Amazingly Good. 

I never was able to quite get the crystalline pure highs, especially with piano, from the Ref 6 that I could bypassed, and run direct, DAC to amp.

I did solve that problem and found an option more tunable via NOS tube options. And that is with a VTL TL 7.5 III. The Ref 6 is 95% what the VTL is, and at a much lower cost. But I'm willing to pay more for the slight improvement in performance.