Herron VTPH-2 power cord

Hello. I have this phono stage, and absolutely love it. I would like to know if anyone is using an upgraded powercord on the Herron VTPH-2. If so, what kind of power cord are you using, and what effects have you observed as a result of changing the power cord?

Thank you very much for your thoughts.

I'm using Empirical Design power cords throughout my system, including on my VTPH-2. I never compared with the stock cord or any other so this is a pretty useless recommendation--sorry!
When I had a VTPH-2 I used the Audience PowerChord SE with very good results. I use this same power chord on all the Herron, phono, pre and power amps.