Hi Mike-
The quick answer is no, they will not replace the Reference Power Cables in the line up. The Infinity Strings Power Cable was designed to offer magnificent sound quality at a low-budget price, keeping in mind the economic crisis. As you are aware with the Reference Power Cable, geometry is used to filter noise and EMI before entering the component and before the component leaks back to the wall. This type of geometry creates a warm, organic, slightly open sound quality with increased soundstaging benefits. The Infinity Strings geometry was designed to be absolutely neutral, it does nothing to cancel out noise within the wiring. All noise suppression is done through the AC shell which is filled with the Infinity CBF and the IEC shell which contains the Pulse Gen filter. If you like those two designs,then you'll love the I-Strings PC. The I-Strings was also designed to gel with the remainder of our other filters. It doesn't really matter if your budget only permits a PEv3 or a CBF or a Quantum Studio, the I-Strings cord will be at home with all those systems.
Thank you!