Wide dispersion + high efficiency + detail + coherence in a speaker?


And coherence is the biggest point! I like the liveliness of single driver speakers but I am looking for something with coherence AND bass! High efficiency is important for liveliness, and wide dispersion for a huge sweet spot and instruments in the room presentation.

Any recommendations?
128x128zuio
Hi Phil,
I have the Coincident Total Eclipse II which are no longer in product.  I've own them for over 9 years and my happiness with them if anything has grown. It has a simple 1st order crossover and to my knowledge is phase and time coherent. 

This speaker is very open, lively and quite emotionally involving.  Excellent natural tone and exceptionally dynamic(similar to a high quality horn speaker). High resolution but isn't a uber detail type of speaker. Definitely is not clinical or analytical. Overall  summary,  natural, organic presentation and an easy to drive impedance load.

I have no reason to replace this speaker other  if I were forced to use a smaller room. Other than that I have no desire for change. Other speakers I believe that I would also enjoy just for comparison. 
Horning speakers
Trenner Friedlander RA Box
Tekton Encores or Double Impact SE
Aries Car at (smaller floor standing models)
Coherent Audio speakers
Daedalus
Vaughn Audio
Charles 

For 20 grand you can buy 10 pairs of Heresy IIIs and stack them pointing in various directions to insure dispersion. 
@zuio  are you close NJ ? go to Audio doctor , He get what you are looking for