Do you ever listen to your system and say WOW that is great? It really sounds excellent.
Yes, every time I switch it on. Weird I know but it is still amazes me even after many years.
Then, other days you say, ehh why does it sound like that...I don't remember it soundin like that?
No - my system is constant - it does not change in response. The only time I don't enjoy listening is when I have a cold and my ears/sinuses are blocked. If your system does not enthrall you every time then you there is something not quite right. Music played well at realistic levels is always extremely impressive.