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?
Revel salons paired with Burmester pre power. If I had the money, this is what I would be living with.
Anyone hear the Paradign Signature 8 and Signature subwoofer combo? Reactions??

I've heard many, but since I've heard Ohm F's, no other speaker I know comes close (I'm not exagerating here).

Take care
When a local store blew a tweeter on their Wilson Watt/Puppies, they hooked up their Hales Transcendence 8's to their flagship system. Part of it has to do with the million dollar system and the good room acoustics - otherwise the Dunlavy SC-Vs would probably win instead of being runner up - but the Hales, at that point, were the ones to beat for their precision and naturalness.