Hearing aid acoustic transducer ED/FED series

compact

Knowles' most versatile and most popular receiver, the ED series powers applications ranging from Standard BTE aids and Mini-BTE aids to Full Concha and Half Concha ITE instruments. The ED is made even more functional by the addition of ferrofluid. Its shock survivability makes it a robust receiver for many applications. FED receivers also damp acoustic peaks and reduce vibration to solve feedback problems and closing issues in ITE hearing instruments. Features Compact size - 0.081cc Appreciable output power - 112dB nominal, 129dB maximum Two-terminal zero-bias and three-terminal center-tapped configurations Undamped, screen damped, internally damped, and FerrofluidTM damped responses with 2dB, 4dB, or 6dB peak amplitude Numerous port locations Wide range of coil impedances Available with FerrofluidTM technology for screenless damping and improved shock performance