Yes those are modern drivers. Cessaros use TAD (not modern) + Supravox (modern).@bonzo75 … Ok , where do the following transducers fit into this topic scenario ? hORNS Universum MK4 , Cessaro Gamma II , AVG Trio III , Acapella Cellini ( Plasma tweeter ) , AER Pnoe , Tune Audio Anima , All Modern Transducers, in the main constructed from modern materials not utilised or available back in the Golden Age .
Not sure what Tune audio Anima uses, but someone speculated it was a modernization of Fostex.