How about a list of speakers that are time and phase coherent? Thiels and what else?

Hold on a second while I get my head out of its' listening clamp...

Most timing issues have to do with the same signal reaching different drivers, and can be mostly corrected by a properly designed crossover.  If the speakers sound good, I would not be too concerned about "time and phase coherence".

On the other hand, if you prefer to run test equipment (and music is mostly just a bother), then you may find hours of enjoyment testing for time coherence.

Excellent discussion about this by JA, interesting...

https://www.stereophile.com/features/100/index.html

+10000 @kahlenz

From that speaker design article by JA, on time/phase coherence:

"Many loudspeakers are claimed by their manufacturers' marketing departments to be time-coherent. There are also a number of speakers that have sloped front baffles, implying that they are time-coherent. However, its step response immediately gives you an indication of whether or not a loudspeaker is time-coherent (on the chosen measurement axis).

And almost all loudspeakers are not. Along with false claims of high sensitivity, false claims of time coherence are among the commonest lies in high-end audio."

We're lookin' at you, Wilson Audio.

;-)


Read more at https://www.stereophile.com/content/measuring-loudspeakers-part-two-page-3#v9HvcSQGM5O3Ciq3.99