Seas Excel Diamond tweeter or Plasma?


Interested in building a speaker using, I think, the most expensive “conventional” tweeter available at $6k a pair for the Seas Diamond. I only want to use the best drivers available. TAD 15” woofer, ATC dome midrange and a great tweeter.
I well appreciate the art/science of speaker design working with an established Speaker designer.
Surely the enclosure and crossovers are critical. I lean toward the Diamond but not sure if the Plasma is better.
mglik
There's really only a tiny bit on the Seas Diamond tweeter.  I have used the Seas Excel Beryllium tweeter and that is just excellent.  Much cheaper at $1400 a pair.  Although, I really like the B&W 800 series with their diamond tweeters.
The little I have heard about the Seas Excel is that there is none better.
A least it seems that it may be the hardest material in a dome. So the fastest? And the back is sealed and in a diamond cut... kind of. It looks very cool and the front as well. Price certainly does not always reflect quality. But Seas is a super established and great quality company. It seems that they made the Excel at the lowest price point possible. 
Oh, Kenjit, Kenjit, Kenjit!
Pretty much like Beatlejuice!
But I do admire his chutzpah!
He also has a way with words even if very obnoxious!
Do I require the "Kenjit stamp of approval?'. I HOPE NOT.
But I do kid of miss him.
Do you think he is a complete put on?





How about the Beyma AMT surrounded by a pair of Faital 6" pro mid woofers in a D'Appolito configuration?

Talk about great imaging and outstanding output levels.

Put them on top of a DSP powered bass cabinet.

The Beyma/AMT mix is not an original idea, I saw it somewhere in an uber speaker by some one selling bending wave speakers or something.

If you have the room, THAT would be an outstanding system with dynamic range to rival horns.
I have to say that overall I've never heard a tweeter actually better than the Mundorf AMTs. 

I've heard crappy AMTs and I've heard great dome/ring radiators and people I respect say the Beyma is as good or better, but never have I personally heard any speaker with a better sounding tweeter.

Point to that is, I have no desire for exotics for the sake of being exotic.
I'd sure like to hear them. 6 thousand dollars. I want to hear them.

I'm real happy with a couple of combos I use.  I mean REAL happy.

6K, got to be something to hear.. Are the domes plated with diamond?
Or made of diamond? 

A single pair of drivers for 6K. Makes my head twist like my dog when she hears a weird sound. Yup..

Regards