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
Wandered in to Audio Visions in San Francisco and they had a system going (just 44.1Hz if I recall) through a pair of Epicon 6s and I was just stunned at the musicality and soundstage.I'm sure they were using high end electronics (Simaudio? Naim?) and cables (Nordost?) but I will remember those speakers forever. They are on my list for my retirement system.
My newest set of speakers. Infinity RS-1. Love my AR-90s but these are just spectacular. Just need some cash for VTLs.
The newest speaker model on the market that I can afford them. My speaker now is B&W 802 Diamond and the best speaker I ever heard will be their new replacement model.