Mine is its musicality... how seductive it is. After, about forty years of ribbon and electrostatic speakers, and massive amplifiers that gave me incredibly detailed and realistic paintings of the venue and each instrument... and of the musician that moved his foot. I have a system that changed the highlights from the details to the sound of the music, the emotional gestalt. All the details are still there, it is just that they are not in the spotlight. I am drawn into listening for long periods of time, finding it difficult not to tap my foot. I don't listen to my system any more, I listen to music. I happily have moved to a much more rewarding system than I have ever had before.
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?