The EM is the most popular omni-directional microphone offered. The superior performance of the low noise EM makes it the choice of hearing instrument manufacturers for all hearing instrument sizes. The EM can also be used in directional applications as a matched omni-directional pair. The BEM is an improved version of the EM microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BEM is ideal in directional applications as a matched omni-directional pair.
Knowles is the originator of balanced armature technology which they apply to their receiver, specialty transducers and hearing aid products. Knowles is also a market-leading manufacturer of MEMS microphones, electret microphones, voice processors and acoustical component accessories.
| Product status | Preferred |
|---|---|
| Description | EC ST microphone |
| Diameter / length [mm] | 3.569 |
| Width [mm] | 3.569 |
| Thickness[mm] | 2,21 |
| Directivity | Omnidirectional |
| Impedance [Ohm] | 4400 |
| Nominal Voltage [V] | 1.6 |
| Sensitivity @ 1kHz [dBV re. 1V/Pa] | -36 |
| Sensitivity Tolerance [± dB] | 3 |
| SNR [dB] | 66 |
| AOP [dB] | 120 |
| Connection | 3-Wire |
The EM is the most popular omni-directional microphone offered. The superior performance of the low noise EM makes it the choice of hearing instrument manufacturers for all hearing instrument sizes. The EM can also be used in directional applications as a matched omni-directional pair. The BEM is an improved version of the EM microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BEM is ideal in directional applications as a matched omni-directional pair.
| Product status | Preferred |
|---|---|
| Description | EC ST microphone |
| Diameter / length [mm] | 3.569 |
| Width [mm] | 3.569 |
| Thickness[mm] | 2,21 |
| Directivity | Omnidirectional |
| Impedance [Ohm] | 4400 |
| Nominal Voltage [V] | 1.6 |
| Sensitivity @ 1kHz [dBV re. 1V/Pa] | -36 |
| Sensitivity Tolerance [± dB] | 3 |
| SNR [dB] | 66 |
| AOP [dB] | 120 |
| Connection | 3-Wire |
Knowles is the originator of balanced armature technology which they apply to their receiver, specialty transducers and hearing aid products. Knowles is also a market-leading manufacturer of MEMS microphones, electret microphones, voice processors and acoustical component accessories.
| Product status | Preferred |
|---|---|
| Description | EC ST microphone |
| Diameter / length [mm] | 3.569 |
| Width [mm] | 3.569 |
| Thickness[mm] | 2,21 |
| Directivity | Omnidirectional |
| Impedance [Ohm] | 4400 |
| Nominal Voltage [V] | 1.6 |
| Sensitivity @ 1kHz [dBV re. 1V/Pa] | -36 |
| Sensitivity Tolerance [± dB] | 3 |
| SNR [dB] | 66 |
| AOP [dB] | 120 |
| Connection | 3-Wire |
The EM is the most popular omni-directional microphone offered. The superior performance of the low noise EM makes it the choice of hearing instrument manufacturers for all hearing instrument sizes. The EM can also be used in directional applications as a matched omni-directional pair. The BEM is an improved version of the EM microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BEM is ideal in directional applications as a matched omni-directional pair.
Knowles is the originator of balanced armature technology which they apply to their receiver, specialty transducers and hearing aid products. Knowles is also a market-leading manufacturer of MEMS microphones, electret microphones, voice processors and acoustical component accessories.
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Tel EU : +33 1 48 92 90 02
Tel NA : +1 (919) 481 6896
SELTECH is an international solution provider with deep expertise in acoustics and sensors. We offer innovative solutions to our customers’ challenges, from design to production.
