... WHAT POWER CORD(S) ARE PLAYING IN YOU SYSTEM TODAY?

Power cords and interconnects have the biggest impact, a real effect on the punch, compression, imaging. They have different degrees in term of enveloppment feel. Nordost, for digital, are fabulous. Valhalla v1 is very airy, detailed but very natural connected to a streamer or a DAC. For high current, bigger power cords like Dr. Accoustics Redfire Ultra are more balanced, bottom to the top end. AQ high current (eg. Tornado) and Furutech Lineflux are better for conditioners (not a natural timber directly connected IMO).

Wire World Eclipse 7,Black Sands Violet

I use Straight Wire - Black Thunder for all of my IEC components.

DIY DH Labs cables on all my gear. 

Red Wave on the Parasound JC-5 and PS Audio Power Plant. Power Plus on everything else.

But based on the SQ I'm getting from the amp, I will probably replace the Power Plus cables with Red Wave over the next few months since they are all short cables. Red Wave bulk is currently on sale for $32/ft. 

Transparent premiums connected to a shunyata Denali 6000t.