Mega D'Appolito Speakers - The Holy Grail?

Now we are getting into the weeds of a slightly different topic. When I started this thread I was thinking more of the W M T M W type of design, or W W w m t m w WW like the mega speakers use. I borrowed the good Dr.’s name to kind of illustrate a design for which I have no better name for than "mega D’Appolito." Maybe I should have said "Multi way, vertically symmetrical around the tweeter."

But this is not a bad path either.

The original Focal-JmLab Utopia series had a couple of M T M W designs which kind of qualify too. I also very much liked the idea of having the mids tilted inwards a little to improve the phase alignment. Wilson also seems to like the idea and uses it in the Alex among other designs.

So you like lots of midrange surface area to improve dynamic range?

I like the Scanspeak 6.5" mid-woofers a LOT. They measure much better than on paper. Not sure if they ahve been improved since original, but they are much easier to deal with and cross over well around 2 kHz. Also love the rich warm sound.

Is the dynamic range, detail, transparency, distortion and imaging consistently better than other type of designs? 

No. 

The  OP's example speakers are all fairly unique not only to each other but to most speakers in general, and some cases carry (ied) some rather lofty prices compared to most typically bought speakers. I'm not at all surprised that commonality is somewhat limited. That said; I'm not sure that the outlined driver alignment alone would necessarily have provided overwhelming commonality in more typical speakers either.

Is the dynamic range, detail, transparency, distortion and imaging consistently better than other type of designs?

I would say not really so much,only tiny differences in presentation.


Kenny.

Like Ricred I also own the Pl-500 from Monitor Audio. For this money you will never find this level in sound quality.

It outperforms in stage depth, width and especially in diversity in height the Magico speakers.

But the D’appolito system creates a level in physical appearance you seldom wil hear. It makes voices and instruments so much more physical tangible.

Beside this the level in grip and authority is of a different level compared to other speakers who have no d’appolito system. The ease and accuracy in grip is really impressive.