I'm wondering if this is the tapped delay line line source electrostat I've been waiting for for years.
It's been a mystery to me that nobody has applied the ESL-63 concept to a line source, which would have not only the line source advantages but larger surface area, important in a full-range electrostatic. It could potentially overcome some of the limitations of the ESL-63 while retaining (and improving upon) most of its virtues.