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Technical and scientific discussion of amps, cables and other topics.

RE: Cable shootout... Are all audio cables the same?

Dude, you are hopelessly confused with marketing spray.
I will try to explain in non-engineering terms for you.
In 100% of all analogue audio signals, “the signal” IS conveyed by the voltage.

Starting with the microphone, the alternating pressure which IS SOUND is converted to an alternating voltage where there is a precise relationship between the voltage and the pressure (positive and negative) that the microphone experiences. In fact, one can determine the sound pressure IF one has the Voltage at any given instant AND the microphone sensitivity, a Sound level meter simply converts that voltage (rectified) into a meter reading.

Ending with the loudspeaker the Voltage = pressure relationship is preserved and the perfect loudspeaker produces a pressure exactly proportional to the Voltage, independent of frequency , the inverse of the microphone.

In all cases, the signal is an alternating signal that ends up producing sound pressure that is positive and negative relative to ambient air pressure.

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