Yes, I would really like to hear the Lelantos, but I've always been suspicious of ribbon tweeters, as I've found I always prefer soft dome. But no one I've read every mentions Alta's sounding overly bright or etched.
Alta Audio speakers--anyone heard them?
Here's another relatively little-known speaker manufacturer.
http://alta-audio.com/collection/
Anyone heard the Titanium Hestia's?
(Where do they get these names?...)