the paradox of accurate speakers

That's easy: There is no such thing as absolute accuracy. At the very least, there will be aberrations from a microphone and the recording system that will separate the live music from the reproduced music. Then each playback system will add its own abberations. Two different speakers have different aberrations but they are aberrations nevertheless. Nothing is perfect.

If you seek some sort of absolute, you will always be frustrated and never be happy. Just find what you think is "accurate" relative to youself and your budget, forget all the rest, and enjoy the music.

Arthur

do all so-called accurate speakers sound the same ?

Yes accurate speakers do sound very close...not perfectly the same (that would mean they were perfect) but very close.

There are a great many "so-called" accurate speakers (you can call anything you like accurate, as it is an over used term)

Even if there was such a thing as an absolutely accurate speaker, it would be rendered less than accurate when placed in a given room. That's because the room is also a speaker enclosure. Just like a speaker cabinet, the room imparts standing waves, reflections and refractions that defeat the illusion in just the same manner as the speaker cabinets do.

That's the dilemma - even if you overcome the laws of physics that stand in the way of a perfect speaker (massless driver with infinite rigidity, inert cabinets and infinite baffle with no refraction energy), the room it plays in spoils everything.

To throw another wrench in the works, not all people hear the same way due to age, physiology, whatever. So if one builds a speaker he voices as "accurate", another may disagree.