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
For me, the dynamic and slam is the taste. Thus the Montana KAS tower speakers by PBN(Peter Noerbeck). Boasting 7 way system per side - twin 12" woofer, dual 9" mid's, dual 5" upper mids, and a tweeter in vertical array(dapolito). All scan speak components. Weighs in at 300 lbs per side. 4 monoblocks of 500 watts amps will produce bigger and better than live event.
Apogee Diva's 20 years ago at a HiFi show in London. I can still remember the incredible lifelike sound reproduction. Well, at least I think I can!
I can say with no doubt, that the Green Mountain
C-3 is the best speaker I have ever heard anywhere.

More later as they break in.
Nautilus 800 and 801.
There are always trade-offs in any speakers that I listened to. Some have 99% imaging but 85% in freq range Some have 99% transparency (like logan) but lacking in dynamic, some has good low level details but sound compress when played loud.
I like the Nautilus 800 and 801 because they score 95+ across all spectrums (excellent dynamic, imaging, details, frequency range and transparent).