Fieldcoil drivers

Is anyone besides Classic Audio using the Fieldcoil drivers or woofers in their loudspeakers?
Granada from The Lotus Group.

Shindo Latour.

Lowther America

The Cogent horn system uses their own field coil compression drivers.

Da Vinci has a speaker built with Fertin FCs.
Kondo (
Maxonic (

available in Calgary Alberta at Loyalty Sound.
The new HIFICRITIC has a review of the Feastrex NfSex, a 5" full range driver. Quite expensive with the frequency limitations you would expect but with considerable charm. Designed and built by a Japanese audiophile named Haruhiko "Hal" Teramoto.