Caelin Gabriel used to work for a defense contractor specifically in the area of reducing noise in electronics. It has been awhile since I researched it, so I am not sure if I a remembering correctly, but I believe he was reducing noise in submarine systems to avoid their detection and tracking. His expertise has nothing to do with marketing, which, as with most audio companies includes a number of statements which seem unscientific and/or hyperbolic. The reasons for these kinds of marketing approaches is twofold: 1. The company does not believe the general public would understand the actual, full technical explanation. 2. The company uses unprecise language so as not to disclose proprietary designs in the public domain.
I am not suggesting using a power cable as a filter specifically (although I am not sure why one might object to this if the filter is properly tuned to the circuit). I would avoid putting actual filter circuits in the cable, as one may not know the filter elements in the SMPS (or connected power conditioner) and multiple filter elements may lead to resonances if they are not tuned appropriately. I prefer building cables for digital and class D/SMPS devices which use RF damping materials, which are non-reactive with other filter elements in the circuit.
So: no RC or RCL elements, just materials which can damp RF energy (converting some of it to heat). I will not reveal what materials I use as I may be interested in selling cables at some point, and I have tried a bunch of approaches and invested considerable time. But this stuff is not rocket science (of wait, some of it is) and the info on these materials is readily available on the Internet.
