different components may require different power cords.Yes, I should have mentioned this. I'm using 14 gauge for low-current-draw components. Power amps which draw higher current may require 8, 9, or 10awg. My custom PC from the mains is 8awg with gold Furutech terminations.
And then there are the different designs using copper strand, silver, and copper+silver. Definitely find a dealer with a return policy or trial period.