so why are you quoting me telling me not to worry when i was talking for the new tweeters not for the 100khz comment, did you quote the wrong person?
i'm so sorry, pardon my mistake.
With the Electrostat tweeter, where is the energizer going to be stored? The problem I see is we now have to either have a powered headphone, (which is either heavy or needs frequent charges) or a cable that provides signal and power to the electrostats and is thus proprietary and limits options. I am obviously for any advance in sound quality, but if it is at the expense of portability, they may have limited utility.
with these things built in, powering the iem
https://www.weibo.com/ttarticle/p/show?id=2309404278868461644048&is_hot=1#_0