What are the differences in Tweeter materials?


I am curious,

Is there someone that could tell me about the differences between the various materials out there that are used to make tweeters? Both soft and metal type.

What are the materials used in each and what are the sound differences both positive and negative?

Soft Dome Tweeters:
Soft dome, Silk dome, Cloth dome, Polymer dome, Polyamide dome and Textile domes.

(I am very confused in particular between Soft, Cloth, Silk, and Textile?)

Metal Dome Tweeters:
Aluminum, Titanium, Beryllium, Diamond coated, domes and inverted.

Thanks!
mezzanine
Mezzanine, the Dyn and ScanSpeak tweeters are both very good, the few Morels that I have used had very good response curves and used at the right frequencies are excellent, not as detailed as they could be, but I have also found the Morels to have high HD that is very audible when crossed low.
Just a general observation: I've heard plenty of metal-dome tweeters that sound the way soft domes are reputed to sound, and I've heard plenty of soft-domed tweeters that sound the way metal domes are reputed to sound. I don't think you can make generalizations about the sound character of one or the other.
-Bob
To my point of view à tweeter that does not have à contribution to the mid-driver can not realy help the speaker to breath.the only one the answered the need in the case of my speakers talon khorus II was AUDAS titanium