I've tried quite a few different cords in my DNA .5 and found that the best, by far was the Kaplan copper cord, available from www.tweekgeek.com
Best Power cord for McCormack DNA 225 or 250
What are some of my options for the best power cord in the $250-$400 for the McCormack power amps. I am running a CJ tube amp in front of it. I was considering PS Audio Perfect Wave, Kimber PK10 Gold, and Acoustic Zen Tsunami 11. Any suggestions would be much appreciated.