What does this mean?

"Perhaps stating the obvious, but what you hear from any amplifier or preamp is because current flows from a power supply and then back to it. Basic understanding sees that It leaves by one terminal and returns to another.



Thanks to Kirchhoff's scientific current laws and the law of conservation of energy we can see current leaves from its origin somewhere in the power supply and has to get back to that origin. Signal current, no matter how well it is treated by the phono stage, must negotiate the inner workings of the power supply. Knowing that origin and how it gets back to it is crucial in understanding how best the micro-signal current returns to its origin with the least possible disturbance.



The Enigma solution was to lower the dissipation factor, improving dielectric absorption (similar to PTFE and polypropylene) for greater frequency stability such that all frequencies of signal current are treated more equally. And additionally: fine tuning its Kelvin paths"

From Wikipedia:
Marketing speak is a related label for wording styles used to promote a product or service to a wide audience by seeking to create the impression that the vendors of the service possess a high level of sophistication, skill, and technical knowledge.

So this is rubbish, as they are not showing anything...

You need the TK421 - for an extra 3-4 quads per channel

Kirchhoff’s laws are what you use to work out voltages around defined loops of the circuit, and currents into and out of specific points. One of the many loops is the power supply and output signal. It’s true that the power supply is in series with the audio signal. But that applies to all audio (and other) circuits with outputs. The marketing text doesn’t describe how their circuitry differs to make it better than others, it only describes that it’s preferable to understand it.
So for me, nothing interesting was mentioned.

AMR-iFi R&D