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
Get a pair of Ohm Walsh's! Mine work and sound great pretty much anywhere in the room - unlike box speakers! They act as true point sources and are quite affordable!
No need for a sub with the Walsh's. For more bass just move them closer to a wall!

I think you are asking for too much.  The Ohm Walsh speakers are nice and they are 360 degree radiating, but compared to other speakers, you are going to sacrifice coherence/clarity.  They are not extremely efficient at about 87db.

You could look into MBL speakers with the 360 degree metal ribbon radiators, but you are at a significantly higher cost area, and they are much less efficient at about 84db.  They sound absolutely amazing, though.

You are most likely going to have to compromise one of your requirements.

For a conventional speaker, look for tweeters where the dome extends further out of the surface plane.  This allows the dome to radiate in a wider dispersion area.  An example would be the Morel Supreme Tweeter:

https://www.madisoundspeakerstore.com/soft-dome-tweeters-morel/morel-titanium-supreme-tsct1104-tweeter-each/

Though, I don't think the Morel speakers are that coherent/clear.  They have a tube-like bloom to the sound.

Good luck.

what is the problem? wide dispersion plus high efficiency 
or wide dispersion plus coherence?

Vandersteens have a tiny sweetspot
MBL are lifeless and are not coherent at all.
Ohms lack in dynamics and detail.
If coherence is truly your biggest point, then you may be better off looking into the idea of designing and building your own speakers. If you are willing to look at something open baffle, then your degree of difficulty will be reduced dramatically - no enclosed box to design, calculate for and try to build...OB can be done much more simply and inexpensively.

But, if you’re looking seriously at coherence then you’d also in fact have to rule out passive crossovers. They can really do a number on the entire crossover zone. They spoil stage coherence, dynamic coherence (by robbing lots of power from the amps) and also tonal coherence which can affect things like clarity, timbre and vocal sibilance and intelligibility.

You will need active crossovers, digital are best...standalone active crossovers that use passive parts are too limited to be of any real value. But Behringer DQX, or Crown XTi-2 amps or the DEQX with the amps of your choice And a good conditioning solution that works for you and you can have real coherence that few other systems are capable of even at many times the cost.

I’ve done all this myself. I went with the Crowns and a buttload of Alan Maher Designs to completely tame the (mostly) digital noise and - presto, it’s all to die for.

Oh, and for wide dispersion you might want to consider excellent quality dome tweeter designs (beryllium??) rather than ribbons. Ribbons may have better detail usually, but they may also tend to beam a bit more than cones or domes.