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
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
@charles1dad   thanks for your recommendation.  
i wonder anyone have experience with Vaughn Loudspeakers. very interesting crossover network but didn't spec the crossover point! 
-p