Concerning the issue of Aesthetix and power cables, I heard the EG directly to the Kubala-Sosna Emotion with the Aesthetix Callisto Signature and both were mighty nice. The EG brought a bit more detail but I suspect this could be fatiguing after awhile. I found the K-S to have a more smooth and natural balance and thus bring less attention to itself. The latter issue and K-S's ultimate black background makes this more of a transparent cable in my book. But these two were more similar than different. It would come down to a personal preference....not synergy. Saying that one cable here is "better" than the other is not realistic. We focus too much on the issue of "better" rather than to try and identify differences.
A few months later when I was able to directly compare the K-S Emotion PC with the Dominus PC, the Dominus fleshed out more of the midrange textures and dimensionality ..... smooth, smooth smooth. And this to me is liquid.
The Dominus simply goes far deeper in the bottom octave than the others whether I tried it with the Manley DAC, the Aesthetix pieces or the CAT JL-3 amps. For me anyway, the Dominus allows more of the Callisto's and Io's unique strengths to come through than the other cables. But there was no denying the K-S's see-through quality with any component I tried it with compared to the Dominus. And this is one thing that impresses me greatly about the Emotion and the Dominus: the strengths that they bring to the table are consistent at any link in the system chain.
I don't think of this as an issue of synergy but rather to simply choose the product that most greatly brings forward the sonic attributes that are most important to each of us. For some it might be the ultimate in top-end extension and resolution, for others it may be all about decays and harmonic textures, or low-end extension and dynnaics. And keep in mind, we are "tuning" a system, not simply a preamp or a power amp or source component. Everything in the system, including the room, affects everything else.
John