Zu Definition, AG Duos orCoincident Total Victory?

Of the speakers on your list, I'd choose the Avantgarde Duo, or if that wasn't possible then the Uno.

I would go with Zu or Beauhorn over Avantgarde-From what I hear, uno and duo owners all prefer the trio if only they could afford them-and many trio owners have switched to the Beauhorn to get off the endless upgrade track and do away with the driver intagration problems all together. Now I don't want to degrade the Avantgardes too much but the value issue is something I cannot get over.

I have no experience with the mentioned speakers 'cept the Definition 1.5s. Wonderful detail at very low volumes. I run mine with an Audio Sterling Premier integrated. 18 SET watts to die for. From my experiences, as well as many others, the Defs can be brutal on SS. My Definitions are almost fully broken in. Electrostatic speed, midrange to die for, and the highs are airy, light with excellent dispersion. You may not find these results with your amp. I was told early on, that the Defs are very sensitive to amplification: may be more important with these speakers than the source. The absolute most enjoyment I have ever had from a speaker since my Magnaplanar Tympani 1D days. peace, warren :)