And, for a simpler linear version that's used to drive air: electrostatic speakers [1]! [1] http://jazzman-esl-page.blogspot.com/2016/12/wire-stator-esls.html

And, for a simpler linear version that's used to drive air: electrostatic speakers [1]! [1] http://jazzman-esl-page.blogspot.com/2016/12/wire-stator-esls.html http://jazzman-esl-page.blogspot.com/2016/12/wire-stator-esl...