The best speaker you ever heard?


In my opinion, the speaker is by far the most important part of the audio system. After all, it is the only part you hear. OK, the other stuff really matters a lot, but without a great speaker... No go.

I am a bit 'speaker-obsessed' I guess, and now I am wondering: What are the best speakers you have ever heard, and what made them the best?
njonker
The electrovoice carlton 4 speaker from 1948 but not released until 1954 is the best i have because of  the amount of recorded information they reveal that other speakers just gloss over along with unbounded dynamics and authority they are truly amazing on every type of music but shine on the challenging music that other speakers can not handle.
I'm relatively sheltered but the best I've heard in person were a pair of Magico S5 Mk IIs. A week ago. Mouth open, stupid grin amazement.

May have been the synergy of the system driving them, but for the sake of argument, I'll give most of the credit to the speakers.