I don't have Dominus PC in my system but I am familiar with it. I am not familiar with either Audio Magic or JPS Aluminata. I know better Purist interconnects and speaker cables but not all of them at all. Purist cables with either fluid or Ferox are very very quiet, quieter with Ferox, and have this seductive midrange, more seductive with fluid, and soundstage depth that is hard to resist. So I don't, resist.
I use Custom Power Cord Co. Top Gun power cord with my CEC belt drive player. It is very good too but it is not Dominus.