What Makes your System Special?

Could be anything but interested in what makes it special for you.   Is there something you would want to change?
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The ability to listen all day and into the night with absolutely no harsh treble, or teeth gritting ear searing painful treble. 
  Just smooth , smooth, smoooooooth.

zero fatigue at any volume. Great detailed and flawless midrange.
And, yes it’s all mine!!!
@lalitk That setup does look very special!

@akg_ca  I've heard those Harbeths and agree completely.
What makes my current system special for me is that even though I am fully aware that it could be improved in many ways, when I am listening to it, I am always far more aware of the music than I am of the system. 
I attribute that to my current speakers which I have owned for about 13 years. I have had 19 other pairs, far less than some audio guys here, and the only others that were near as satisfying were Spendors that I had for some years.
I do believe that in my experience, speakers are probably the most important ingredient in a satisfying system. They are not the soul of the system, but they have the ability to express or impair the expression of what comes before them.