Single driver vs traditional 3 way loudspeakers

You are quite right Eric.
Tannoy makes coaxial speakers.
Coaxial speakers provide the magic that those with full range drivers are looking for.
Maybe that should be rephrased. What I assume those with full range drivers are looking for.
Tannoy and Altec got it right decades ago.
Point source is where it's at.

Tannoy dual concentric driver...I love mine....

Everyone's talking cones.
By far the best approach to a full range single driver speaker is electrostatic.
True, none is flat below 50Hz but there isn't the distortion produced by a full range cone at that frequency.

Not willing to give up frequency extremes for the various music genre I enjoy, so multiple drivers with seamless crossover integrations - sounds like a cohesive whole.

Everyone's talking cones.
By far the best approach to a full range single driver speaker is electrostatic


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Now wait just 1 minute there. A xover low sens cone is not the same asa  WBer cone.
Totally different speakers. 
Its xover low sens (SB Acoustics/Seas/Scanspeaks vs WBers)
Stats/panels have issues/complexities.that WE9The WBer cultists) don't want to deal with.
Horns vs Stats vs low sensxover types vs WBers. 
Take your pick.