@dkidknow I believe the Zavfino power cords are very well made (check out their website for further details) and will work well on the PS Audio Stellar Phono.
Also, check out the links I'll list below and read them.
I don't own the PS Audio Stellar Phono but I believe my suggestion will work.
Paul of PS Audio used a lot of the Audioquest products, if I was a personal friend of Audioquest I might use their products also with the friend discount that I'll bet exists (no disrespect intended).