Charles, the reason we see no such measurement is because we can't see past the amplifier. In the case of the amplifier, if it is solid state it will have an output impedance of near zero or even below with negative feedback. We won't be measuring the LCR of the amplifier as a whole. The SS amp will have an input impedance which is important because the partnering preamp has to drive the LCR of the ICs and the input impedance without a premature HF roll off or a rise in distortion. Once again because of the active circuitry involved you can't measure the LCR of the preamp from input to output. You can probably measure the LCR of a transformer or autoformer based passive preamp.
I understand what you want to do, you like to be able to measure the changes you hear when you switch from IC or speaker cable to another
And at this time I don't think we can do this unless the LCR component of a cable large enough to cause a measureable change in frequency response. Most of the time a change that you might hear does not correspond to a change in a measurable parameter.
Scotty