Atelier Rullit field coil tweeters AERO 1. Another offer from Atelier Rullit: Two elaborately re-built vintage tweeters. In my laboratory, they are absolutely fine with a classical Klangfilm Eurodyn KL-L431 - a must-have for the reproduction of unplugged instruments, as played in acoustic jazz or whatever kind of chamber music, and the reproduction of the human voice in opera or musical. Perfectly suitable to your "large" Jensen, WE, Klangfilm and for many others high-class speakers!!!