Coaxials - Reality vs. Experience?

Maybe you could be more specific about the sound qualities you ascribe to concentric drivers.

@tomcy6 For me: Coherent, natural sound with solid & sharp imaging, because the tweeter and mid/woofer covering the critical midrange crossover point act more like a single point source rather than a tweeter and woofer barking at you from different locations. That said, high tech multi-driver speakers like Magico and Acora are getting better at this and seem to be closing the gap, plus the other benefits all that tech & exotic material offers. Tannoy materials are rather pedestrian by comparison. 

@russ69  So much of the audio tech we enjoy today is positively ancient in origin. The moving coil dynamic driver itself is ancient. Maybe you enjoy class D amplification with digital streaming and, I dunno, air blades? Plasma tweeters? Is there any other speaker tech that isn’t ancient? I myself enjoy vacuum tubes, so the fact that something came from the 50s or 60s (or 40s, etc) is of little concern to me. 

I guess class D hybrid and Walsh drivers are as hip as I can get but my point was not the age of the design but that there are successful designs of  most all configurations and coax drivers are not a magic tonic. 

I guess class D hybrid and Walsh drivers are as hip as I can get but my point was not the age of the design but that there are successful designs of most all configurations and coax drivers are not a magic tonic.

@russ69 I don’t think anyone in this thread has been pitching it as magic tonic for any and all audiophiles. I specifically disclaimer’d my 1st post with "Tannoys are not for everyone". However this IS a good place for coaxial and dual-concentric aficionados to express what they love about ’em. Which I did :) 

@mulveling 

Coherent, natural sound with solid & sharp imaging,

I'm sure that's how your Tannoys sound to you, but isn't just about every speaker manufacturer shooting for those qualities, some with more success than others?  There are exceptions going for a different sound, of course.

The real purpose of a coincident source driver is because of the waveguide affect of placing the tweeter in the center of the bass driver. A waveguide to a tweeter extends the frequency response lower allowing a 2 way to utilize a larger driver for more bass extension and volume while not asking it to operate outside its physical abilities thereby introducing distortion. Andrew Jones mentions this in his description of his speaker. Not really anything new though.