[Puma Cat]

Originally Posted by audio bill

With all due respect I'd like to make a technical point of clarification about these devices. They're not passive... it's a unique active circuit which operates in parallel with your power-line so they can't limit current since there's nothing placed in series with your power. The best description of what they do is taken directly from their website:

[I]ADD-Powr technology is Algorithm Digital Defined electrical energy and power. Energy is added to electrical signals and systems. It is unique because it is non-invasive.
[LIST=1][*]The products generate low frequency electromagnetic fields to affect harmonic energy change audio signals and systems.

So...I read their website, and I did not find that it explained anything that is meaningful to actually understanding what it is doing.

So, I'm curious what the phrase: "...to affect harmonic energy change audio signals and systems" actually means.

ALL electric and/or audio signals are electromagnetic waves/fields. Just read Dollard, Steinmetz, or Heaviside...all electrical energy is the result from the interaction of dielectricity and magnetism.

So, how is this product different, and in what way? What is the transfer function and what is the functional response it is mediating? It's not explaining what the transfer function is, and what the functional response is. If it mediates some sort of physics-based functional response, it can be described by a transfer function. I don't get any of that information from the web page, so it reads like marketing-speak to me.