Suppose I want to compare the sound of the same radio program via streamer/DAC vs. broadcast (FM tuner). I simply switch between input X and input Y on the preamp. That's an example of critical listening, and it's neither nonsense nor self-flattery. Or I want to compare the sound of preamp A vs. preamp B into the same amp (one on balanced, the other on RCA). Just switch between the two inputs by pushing button on front panel of amp. That's another example of critical listening, and a useful one. The list of potential listening tests is pretty much limitless, but of course, once satisfied, we lean back and enjoy until some other aspect of the system warrants our critical attention.
What exactly is critical listening? Who does it?
I'm supposed to listen to every single instrument within a mixture of instruments. And somehow evaluate every aspect of what I'm listening to and somehow all this is critical listening.
This is supposed to bring enjoyment?
I'm just listening for the Quality of what I'm listening to with all the instruments playing and how good they sound hopefully.
And I'm tired of answering that I'm not a robot all the time. That's being critical.