I suspect Devilboy meant to say is, "Yes, it is ok to use different power cords in the same system."
With all the different factors that make up an audio system, including parts from many different manufacturers, feet and feet of transformer wire, different types of caps, hook-up wire, IECs, switches, etc. you are probably best off choosing whatever cables sound good to you. In a general sense, cable manufacturers sometimes have a house sound where certain cable lines for example provide more detail and speed in comparison to others that may provide more body and tonal density. But that doesn't mean using cables from only one manufacturer is going to give you a better sounding system.
The need to use cables from only one manufacturer is a pipe dream fabricated by people who fabricate cables when they are not smoking pipes. You no more need to use only one brand of cables than you would need to use electronics from only one manufacturer. IMO
With all the different factors that make up an audio system, including parts from many different manufacturers, feet and feet of transformer wire, different types of caps, hook-up wire, IECs, switches, etc. you are probably best off choosing whatever cables sound good to you. In a general sense, cable manufacturers sometimes have a house sound where certain cable lines for example provide more detail and speed in comparison to others that may provide more body and tonal density. But that doesn't mean using cables from only one manufacturer is going to give you a better sounding system.
The need to use cables from only one manufacturer is a pipe dream fabricated by people who fabricate cables when they are not smoking pipes. You no more need to use only one brand of cables than you would need to use electronics from only one manufacturer. IMO