I believe that a speaker using the electrostatic approach came before the magnetic cone speaker. We are talking about the early years of the last century.
A history question about planar drivers
This isn't rhetorical (i.e. a test):
Who invented magnetic planar speaker drivers as used by Infinity, Apogee, Magnepan, etc.?
I'd be interested in electrostatic drivers too - which preceded the other? Was the magnetic planar driver a development of the electrostatic planar driver, or vice-versa?
There's really no information about their development online, as far as I have been able to find. Does anyone here know?
Who invented magnetic planar speaker drivers as used by Infinity, Apogee, Magnepan, etc.?
I'd be interested in electrostatic drivers too - which preceded the other? Was the magnetic planar driver a development of the electrostatic planar driver, or vice-versa?
There's really no information about their development online, as far as I have been able to find. Does anyone here know?