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?