Knowles TEC Balanced Armature Speakers

Knowles TEC Balanced Armature Speakers are intended for use in high power hearing aids and combine output comparable to the larger BK receiver in an ultra-thin package. They are a similar size to an EF receiver and have a medium DCR to impedance ratio. The operating sensitivity does not vary more than +1/-3dB from -17°C to +63°C. DTEC Balanced Armature Speakers (7.87mm x 4.09mm x 5.59mm) combine two TEC speakers with a single round port. Case size is equivalent to BK/EF. DTEC provides increased output and reduced vibration compared to a single speaker.