I'm long out of shopping or looking around at equipment. But the best thing I ever heard was a long time ago at what I am sure is a long defunct store in Alexandria, VA. A gentleman I worked with several years before in a similarly defunct audio chain worked there and we were looking for new speakers. This store was set up in an old very, very large house. Almost mansion level I'd guess. In the large main room, likely an old ballroom or some such, were the Infinity IRS of some version. They were playing a solo piano selection. The only time I've ever heard a system that when you closed your eyes you would swear there was someone playing an actual grand piano in the room. Simply awe-inspiring. Not screaming loud or anything, but truly beautiful and natural.