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
Electroslacker, yes I had such an experience with Infinity ServoStatic 1s driven by ARC early tubes stuff. I had to go in and ended up buying them and the ARC a week later. But I've had many more instances at CES and other shows, where I walk in hear awful sound and turn around and leave. Once this was a McIntosh speakers where the young woman at the door who had welcomed me looked curious and I said, that had just remembered an appointment.

Incidentally, I will never have an experience walking past a dealer anymore, as there are no dealer with 200 miles of me. I expect within 50 years all dealers will be gone.
I spent some time at a friends house today listening to the Raidho D1. This was the best sound I've ever heard to date, on all genres of music. In all fairness, the entire set up was very well thought out and my friend does own a high end shop. He was also using the Raidho stands. If I had the money I would buy them without thinking twice.
I don't think I'm ready for ceramic drivers again. I think the B.M.C. Arcadias sound much better than any of the Raidhos I've heard.
I personally have loved most any speaker using a carbon fiber variant for the Tweeter and a fiber Mid range. Just very natural and open as heck. FAST is a word that comes to mind. I have heard ceramics sound great too, but not like carbon drivers when utilized properly.