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Ear simulator (IEC 60318-4 coupler) - 4157

Ear Simulator Type 4157 with microphone and preamplifier is designed for measurements on earphones coupled to the ear by ear inserts such as tubes or ear moulds or eartips

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Ear simulator (IEC 60318-4 coupler) - 4157

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TYPE 4157 - Ear Simulator (IEC 60318-4 Coupler)

The Ear Simulator Type 4157 closely reproduces the acoustical parameters of the human ear, presenting the insert earphone under test with an impedance approximating that of the real human ear.

USE SCENARIOS

  • Frequency response, sensitivity and distortion measurements on insert earphones, e.g. used in hearing aids, operator headsets, etc.
  • Servicing of hearing aids
  • Production testing of earphones

List of accessories available for all variants of this family

Product Code Description
0,01d Calibrator, Class1, 94&114dB, 1kHz -4231--- 0,01d Calibrator, Class1, 94&114dB, 1kHz
Pistonphone -4228--PTO- Pistonphone