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
Im a skeptic. I dont think that just because a speaker costs 100k it is the best. As of now the PSB Synchrony One holds my attention.

Revel Salon II second pick.
Not to go off topic but I've compared exotics to the PSB M2s and still prefer them. I agree with the skepticism about price in the previous post. This weekend I'm listening to SF Guarneri Mementos which if I buy will automatically become the best speaker I have ever heard, in my limited experience.
Oeiras99 - What does purchasing have to do with making a speaker the best you've ever heard? Their sound doesn't change simply because you didn't take them home. If they're a significant investment and you're happy with your PSBs, why change?
Mceljo. I will buy the Mementos only if they sound better in my system in a home audition than the PSBs. In that case, the Mementos will be the best I have ever heard; if not, the PSBs are still champs. Thanks for your input.
There are a lot pages to this. Which PSB's do you have now? Is it the M2? Get a demo on the Synchrony Monitor too. I was skeptical of PSB when they started making speakers in China but the Synchrony is their best yet.