Did ASR change my opinions?
It changed my opinion on DACs. There is very little difference. I did some prikitive blind-testing at home and can't hear differences.
I never had the feeling of audible differences between cables and solid-state amplifiers. There are exceptions (TotalDAC and Devialet Class-D sounded strange and ASR measurements afterwards confirm it).
What disturbs me at ASR (mostly the users not Amir only): SINAD as a fetish, not looking at other measurements more. Anything above 90dB is inaudible. Benchmarking on 120dB or more is theoretical. Even the low performance of 60dB of record players is irrelevant for sound differences.
I also differ from ASR's view on room acoustics and loudspeakers. There are big differences in data and perceptions, where ASR insists that research suggests, that people don't care. Also I agree with Magico, that resonances and diffraction need to be minimized. More focus should go there, to me it's very audible.
Loudspeaker measurements on Klippel is an important source. It should be mandatory for high end speakers, because in demo rooms one can't discern well the room from the speaker and they sound different at home. Why don't Magico and Wilson disclose their data?
I prefer ASR over the always positive reviews of Guttenberg, absolute sound, Stereophile.
And finally: ASR gets facts back in HiFi, which was lost for more than 25 years. The ears are very bad sensors compared to the eyes and other senses, it's the brain which extracts the sound using imagination and other senses. That's why it can be easily fooled. Everybody can see differences between TV screens side by side, audio is harder.