Bohlender Graebener Neo10 Planar Transducer is up.
Klif's notes: Very non-linear frequency response. Odd things in the unit-to-unit consistency with regards to the distortion. I know people have used them and liked them... I don't see it. Maybe there's a legit use for them that I'm just not aware of like line arrays (as the marketing indicates). Either way, I can't recommend them for 'standard' speaker applications based on what I'm seeing here.https://www.erinsaudiocorner.com/driveunits/bg_neo10/