Pretty much what Clfcarney says... But to add to that, I think realistically the only way to totally satsify you everytime you flip those switches on, it must be 99% of what you expect to hear in your mind for that specific recording coming out of that system.. Bass too lite, To heavy, too forward, too thin, too blended, all add up to you not being totally content. Its cause your brain is expecting one thing, and that is normally correct, so don't second guess yourself, if its wrong sounding, its just wrong, and not what you expected, and if its not what you expected then in your mind always something will be a miss. If your an audiophile than admit it or not your a perfectionist.
It might be impossible for many to gain that balance in every single type recording, but some systems (very few anyway) seem to somehow magically make even those recordings your tired of mainly because they just never came out how you wanted them to sound, and brings them back to life.
When you can finally say it is not making me think about it you have achieved something. Thats when you get to hear the music again, and stop trying to pinpoint tone your electronics, cause they don't matter, the media your trying to play is all that matters.
It might be impossible for many to gain that balance in every single type recording, but some systems (very few anyway) seem to somehow magically make even those recordings your tired of mainly because they just never came out how you wanted them to sound, and brings them back to life.
When you can finally say it is not making me think about it you have achieved something. Thats when you get to hear the music again, and stop trying to pinpoint tone your electronics, cause they don't matter, the media your trying to play is all that matters.