Stereo sounds good If I am engaged with the music, Engaged means, Not reading, Not typing & Not watching a movie, etc. IOW you are into it.
How do I know if I'm into it? I move in time. I tap my feet in time. I play drums on my chair arm. If not Its casual which isn't a bad thing. Sometimes I have to do chores.
How do you know when a stereo sounds good?
When do you know your system is pleasing to listen to? How do you conclusively prove to yourself that your system sounds good to you? How do you determine that you enjoy listening to music through your stereo? Do you have a suite of measurements that removes all shadow of a doubt that you are getting good sound, sound that you enjoy? Please share.