What's the best sounding dome tweeter available?


I'm thinking of trying the DIY route for a pair of full-range speakers. In your opinion, what is the BEST dome tweeter available and the best place to buy it?
Thanks and happy listening!
myraj
The Esotar tweeter is my favorite. The kicker is that they are $1000.00 each. I ahve them in my Extremas and there is nothing like them.
Dynaudio is not selling raw drivers to the public anymore, but if you can find a pair of Esotars floating around somewhere, buy them. If not, or if you're concerned about replacement ability, Scan Speak is the next best choice.
That VIFA RING radiator tweeter really sounds awesome..seems to qualify as a top 21st century driver...i may have to eventually get a pr...put that with the scanspeak 10 inch woofer. or the focal 11WX..WOW!!!
VIFA RING(1K) + SCANSPEAK 10 (500) + xover + cabinets..for under 2K... and what commercial could touch it?
The standard Vifa ring radiator has an inherent resonance that keeps me from putting it anywhere near "the best tweeter" list.

If I had to pick a reaonably priced tweeter, that comes damn close to the best of the best domes (which in my opinion is the $1000.00 special pro version of the Ring radiator, that is WAY different from the standard version) I'd pick the Hiquphon dome without ferofluid. This dome is in my Avinci 1 speakers, and it's crushed every dome speaker that we've ever compared it to. It's so smoooooth and transparent sounding, that other dome tweeters sound crude, slow and disconected in comparison.