The best speaker you ever heard?


In my opinion, the speaker is by far the most important part of the audio system. After all, it is the only part you hear. OK, the other stuff really matters a lot, but without a great speaker... No go.

I am a bit 'speaker-obsessed' I guess, and now I am wondering: What are the best speakers you have ever heard, and what made them the best?
njonker
Analysis Audio Amphitryon Full Range Ribbon Speakers. They even edge out, by a small margin, my second favorite, the Dali Megalines.
I have to break this down into three catagories; dynamic bookshelf, dynamic floor standing and electrostatic. Of the latter, I've only owned one, The Martin-Logan Aeriusi. While it was surely different, I cant say it was the best loudspeaker I've ever heard. As for bookshelf dynamic, I'd have to say the Paradigm Reference Studio 20. I wish I could afford them now. Paradigm also rules in the floor standing dynamic category. There, it's a toss up between the Paradigm Reference Studio 60 and Esprit bipolar. I really miss the Esprit's. Presently, I am listening to Mirage M-290's which I purchased for a ridiculously low price on ebay. They are very good indeed. Any comments?