Zu Definition, $9,000/pr new. 101 db/w/m efficient, 300 watts power handling, 16hz - 20,000hz response. This speaker, and its little brother, the Druid, got me listening to classical music on a stereo again. Tonal accuracy is excellent, dynamic behavior can telegraph a full orchestra, yet solo presentation is nuanced, delicate, intimate, expressive and real. Honestly, I couldn't suggest another speaker under $10K new or used that can approach it, let alone equal it, for your application.
http://www.zucable.com
Phil
http://www.zucable.com
Phil