Only three manufacturers?

It makes sense to me. I want to match my front-end, pre-amp and amp with time and phase coherent speakers. Like they say: "you can't be part way pregnant." Likewise, I don't partially coherent musical reproduction.

Playboy is commenting on "the original sound"?! What the hell do they know about original!!! So much silicone graces their airbrush retouched photo shoots, they must think "original" comes from Dow-Corning & sprayed pigments!

Agree with Jmcgrogan2 & Royy.
Big boy toys are discussed in these forums.
They forgot about *Dahlquist*

There are a few more manufacturers but these are the BIG players. All three have been around for a long time and have never wavered on their philosophies. I for one am in their camp. I too believe that these parameters are important and someday when better testing becomes available, it will be proven to be important since that appears to be a must in this world today---proof! Funny how people pick their truths.
Everyone is entitled to their opinion and as the fellow stated above, everyone has one. Just look at any one requesting any speaker information and how many suggestions you get.
I do find it interesting that some of the main stream electronics folks use Vandersteen. Not because they think it is the best speaker on the planet but because it lets them hear what is actually there. Also, the engineers from some of these companies use the same speakers. A short list includes Audioquest, Steve McCormack, Ayre and Aesthetix to name a few off the top of my head.
There are a lot of proven inaccurate speakers out there that people use and that's fine. If they like them more power to them.
I always thought "High end" audio was interested in improving the art and some of this stuff is a giant step backwards(even on a test bench.) The term "High end" is overused just like "High efficiency" on a 10 Seer AC unit. It is all marketing BS and about the dollar.
I have been at this for 37 years and watched the "Hits" of the day come and go. There is only so much that can be done with designs and I genuinely think manufacturers screw it up so that can lay claim to a different sound. Honest improvements do not jump out of the woodwork every year! Most people will steer away from the accurate system because it isn't exciting. We ARE accustomed to certain inaccuracies that most find pleasing.
As for Playboy, yeh, they listed the 3 "Major" players but they need to stick to what they do best.
Also, for the fellow that mentioned JM Labs, why would they make one speaker correct in these parameters and no others?
I personally think we would all be better off if we get our heads out of magazines and educate ourselves.

The older Dahlquist speakers of the 70's were an early attempt at time alignment only. They are not and never were phase correct. Even Vandersteen's earliest Model 2's in the 70's were not time and phase correct. Vandersteen, a few years later, introduced phase and time correct speakers of a sort.
I truly believe that current manufacturers today use their argument against time and phase speakers because it would drastically raise the price of their product and hurt their bottom line. I also think it would be too expensive to R&D this design for market. Also, Vandersteen holds patents on his specially designed drivers. It takes years to refine designs.