+1 on both Don and his cords, nothing but terrific experiences for me over the past few years with DCCA...I cannot comment on differences with Shunyata, no experience with them.
DCCA or Shunyata help?
I've realized quite a nice increase in detail after installing some NOS tubes in my 300b integrated amp. Now, I've kind of got it in my head that this improvement has revealed a need to upgrade power cords. I'm currently using an older Shunyata Taipan and am looking hard at a DCCA Eminence PC. Any shared experiences and thoughts on these products will be appreciated. Also, I'm more than willing to hear that I should stay put.