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
I would suggest the Vifa XT25TG30 ring radiator!
You can get this at Solen or other speaker parts dealers
in the US.
If I was going for the best, I'd get the Accuton D20-6. The diaphram is made of diamond. Claimed frequency response to 100K. Avalon uses it in the latest version of their Eidolon speaker (the Eidolon Diamond). They are available from Madisound.

Oh, there is one little problem. They sell for $2800.00 EACH. :-(