I got to hear these speakers at Pacific Audio Fest. They did not disappoint. They sounded wonderful. If I could afford to spend $37k on a pair of speakers, I wouldn't hesitate to buy a pair.
All New Songer Audio FIELD-COIL Speakers : Taking Field-Coil Speakers To A New Level !
They are making their Field-Coil speaker drivers like nobody else !
https://songeraudio.com/technology
More info here
https://www.whatsbestforum.com/threads/an-introduction-from-songer-audio.36021/