Budget High Current Power Cords

One problem with these expensive cables is the manufacturer doesn't make a million feet a year of the stuff.   Economy of scale is the big deal in getting the price down.   So, they are expensive, regardless of how they sound, which means it is difficult or impossible to compare bang for buck.

New GR Research B24 is good

Virtual Dynamics Power 3 / Power 1 / David Series. Takes a bit of hunting but well worth it. I was able to source them for every component in my rig. 
 

@hickamore 

Thanks for reporting your findings so far. Very interesting. I will be interested in hearing if you hear any difference on the subwoofers. When I had subwoofers I never did more than a token upgrade to them.