Flat membrane acoustic loudpeaker has 2 exciters connected in series or parallel dependent on frequency via coil and blocking capacitors

摘要

The loudspeaker has a number of exciters, with each 2 exciters (1,2) connected in series via a coil (L1), providing a parallel connection at high frequencies, with 2 blocking capacitors (C1,C2) connected between the ends of the coil and the supply voltage terminals of the exciters which are not connected in series.