The best speaker you ever heard?

The Surrountec - Germany !!!

This may be a studio monitor, however, it is not 'dry' & 'lifeless'
Rather 'fast' + 'precise' yet reasonably musical.

Please do take a look.

Try and audition if possible.

It is one of the best [well implemented] T & P Diamond & Ceramic Drivers design. Well implemented.

http://www.surrountec.de/public/indexEn.php

"'The people making comments including myself, no matter how experienced have limited comparisons. There would be other loudspeaker design we would consider if we heard them irregardless of taste.'
--Armyscout41

"Excellent point, Armyscout41. I would bet that few of us have heard more than a handful of speakers in which all other conditions are constant. And I'm certain that many among us would change our response 2 or 3 times in the 5 years that this thread has been running."
Evita

I agree with Evita and Armyscout41. It's essentially impossible to do TRUE A/B comparisons with a significant number of speakers because of their size, etc. This point became immediately obvious to me at the 2007 RMAF. I do NOT claim to have heard every speaker (well, DUH!), although I have heard quite a few. With that in mind, I will state that I think the best I've ever heard are the

Denalis by Intuitive Design.

Aerial 8Bs on a Theta system.

harbeth SHL5

Jamo Digital 130.(1), Norh 6.9(2),JBL 4430(3),Magnepan 1.5qr(4),Magnepan 2.7qr(5).