I wish Amir had placed more emphasis on the absence of audible differences, rather than on better-measuring (but audibly indistinguishable) engineering being available at low cost.
The OP over there asked objectivists/ASR to "
Measure using an ADC map out the waveform and show us the actual output." Amir replies "This is done at the start of almost all of reviews" and shows this graph (among others) for an $89 DAC:
The OP also asked "
Compare more high-end gear with budget audio equipment". Amir replies "Here is the same output as above, but for a $14,000 DAC" and shows this graph (among others):
Amir then writes "Clearly the "high-end" DAC is producing tons more garbage than the ultra low cost one. You want your music unadulterated or with a lot of rancid leftovers?"
IMO, this language is not helpful when speaking to subjectivists. I would expect "tons more garbage" and "a lot of rancid leftovers" to
make the sound bad. But it won't be bad. That "tons of garbage" is all at least 90dB down and hence completely inaudible.
This difference in performance (ignoring the price difference) only matters to those who value good engineering for its own sake. And that is not a value held by most subjectivists, or even many of us objectivists.
I, for one, only care about
audible (to me) differences. To me, those two DACs have
identical performance, because I know that I will not be able to
hear a difference. I don't care at all about the "tons of garbage" and "rancid leftovers" that can be
seen in measurements.
To speak effectively to subjectivists (or any group) requires understanding their values and framing points in terms of those values.