GRAS 43AA
Ear Simulator Kit According to IEC 60318-1 & -2

The GRAS 43AA is a complete test jig for acoustical measurements on telephone handsets and earphones in accordance with:

  • IEC60318-1 & -2 Electroacoustics – Simulators of human head and ear – Part 1: Ear simulator for the calibration of supraaural earphones, 1998-07
  • ITU-T Recommendation P.57 (08/96) Series P: Telephone transmission Quality, Objective measuring apparatus: Artificial Ears
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GRAS 43AA Ear Simulator Kit According to IEC 60318-1 & -2

The GRAS 43AA is a complete test jig for acoustical measurements on telephone handsets and earphones in accordance with:

  • IEC60318-1 & -2 Electroacoustics – Simulators of human head and ear – Part 1: Ear simulator for the calibration of supraaural earphones, 1998-07
  • ITU-T Recommendation P.57 (08/96) Series P: Telephone transmission Quality, Objective measuring apparatus: Artificial Ears

It consists of the following components:

The Test Jig has an adjustable spring-loaded arm to exert a variable force on the test object.

A prepolarized version is available, GRAS 43AA-S2.

A version with a GRAS 26AB. Preamplifier is available, GRAS 43AA-S3.

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