You Judge sound for more different parts. You need to understand all these parts. In 16 years of time I have done thousends of test with cables, sources, amps, speakers, conditioners etc.
I can hear all these parts in a few seconds with my own music. Most people can only focus on a few of the parts to Judge for.
So what I do for these people is to explain what the difference is. I do one part at a time. So it becomes a lot more easier also for those who have less experience.
When you do it right, it is even for people who have not a lot of knowledge very clear. You only need a normal working hearing.
When people say: I don't hear the difference. At a show I don't think it is that good. Often it is not that good in real.
My experience is that when all parts are there in a set it is convincing for every person. When a part is missing. At shows many people make mistakes ( they don't know what the f.. they are doing0) or what I said parts are missing.
When is sound convincing for every single person?
when all these parts are in a set.....
http://forum.audiogon.com/cgi-bin/fr.pl?rcabl&1393266431
read my story about total sound