Ear simulator kits

The GRAS 43AA-S2 CCP Ear Simulator Kit with TEDSis a complete test jig for acoustical measurements on telephone handsets and earphones. It includes an IEC 60318 Ear Simulator RA0039 which is individually calibrated according to the ITU-T Recommendation P.57 (08/96) ”Series P: Telephone transmission quality, objective measuring apparatus: artificial ears.

The GRAS 43AC-S1 CCP Ear Simulator Kit according to IEC 60318-4 with TEDS is a complete test-jig for acoustical measurements on earphones coupled to the ear by inserts such as tubes and ear moulds.

The GRAS 43AC-S5 Ear Simulator Kit with TEDS is a complete test-jig for high-frequency measurements up to 20 kHz on earphones coupled to the ear by inserts such as tubes and ear moulds.

The GRAS 43AC-S7 Ear Simulator Kit with TEDS is a complete test-jig for hi-res measurements up to 50 kHz on earphones coupled to the ear by inserts such as tubes and earmolds.

The GRAS 43AE-S1 Ear Simulator according to ITU-T Rec. P57 Type 3.2, Prepolarized is for acoustically testing supra-aural earphones, telephone handsets and loudspeakers, and complies with the international requirements: ITU-T Recommendation P.57 (08/96) “Serie P: Telephone Transmission quality. Objective measuring apparatus: Artificial ears”.

The GRAS 43AG Ear and Cheek Simulator represents the section of a head most important for realistic reproduction of the acoustic properties of the ear of an average human head. It allows the use of an ITU-T type 3.3 pinna or an Anthropometric Pinna, either with an IEC 60318-4 Ear Simulator, a Low-Noise Ear Simulator system, a High-Frequency Ear Simulator or a Hi-Res Ear Simulator.

This GRAS 43AH ear simulator with TEDS consists of the ITU-T Rec. P.57 Type 2 Ear Simulator and Type 3.2 Simplified Low-leak Pinna Simulator and is designed for making ITU-T standardized tests of telephone handsets, receivers and receiver/loudspeaker-modules on the production line.

The GRAS 43AI ear simulator with TEDS consists of the ITU-T Rec. P.57 Type 2 Ear Simulator and Type 3.2 Simplified High-leak Pinna Simulator and is designed for making ITU-T standardized tests of telephone handsets, receivers and receiver/loudspeaker-modules on the production line.

The GRAS 43BA-2 is a 1/4" 0.4cc High frequency coupler for test of hearing aids. It uses a 1/4" microphone and 1/4" preamplifier with CCP connection. The equivalent externally polarized version is GRAS 43BA-1. 

The GRAS 43BA-3 is a ¼" 0.4cc  high frequency, high sensitivity coupler for test of hearing aids. It uses a ¼” microphone and a ¼" preamplifier with CCP connection.

The GRAS 43AA Ear Simulator Kit is a complete test jig for acoustical measurements on telephone handsets and earphones. It includes an IEC 60318 Ear Simulator RA0039 which is individually calibrated according to the ITU-T Recommendation P.57 (08/96) ”Series P: Telephone transmission quality, objective measuring apparatus: artificial ears.

The GRAS 43AB Artificial Ear is a complete test-jig for acoustical measurements on hearing aids.

The GRAS 43AC Ear Simulator Kit is a complete test-jig for acoustical measurements on earphones coupled to the ear by inserts such as tubes and ear moulds.

The GRAS 43AC-S4 Ear Simulator Kit is a complete test-jig for high-frequency acoustical measurements up to 20 kHz on earphones coupled to the ear by inserts such as tubes and ear moulds.

The GRAS 43AC-S6 Ear Simulator Kit is a complete test-jig for hi-res measurements up to 50 kHz on earphones coupled to the ear by inserts such as tubes and earmoulds.

The GRAS 43AD Artificial Ear is a complete assembly for acoustical measurements on acoustical transmitters and loudspeakers. It can be integrated with a telephone test head or permanently installed on a production test line.

The GRAS 43AE Ear Simulator Kit according to ITU-T Rec. P57 Type 3.2 is for acoustically testing supra-aural earphones, telephone handsets and loudspeakers, and complies with the international requirements:ITU-T Recommendation P.57 (08/96) “Serie P: Telephone Transmission quality. Objective measuring apparatus: Artificial ears”.

The GRAS 43AF Coupler Kit is a complete test jig for acoustically testing telephone handsets and earphones and complies with ANSI S 3.7 – 1995 – American National Standard for Testing Earphones.:

The GRAS 43AF-S1 Artificial Ear is a complete test jig for acoustically testing telephone handsets and earphones and complies with ANSI S 3.7 – 1995 – American National Standard for Testing Earphones.:

The GRAS 43BA-1 is a 1/4" 0.4cc High frequency coupler for test of hearing aids. It uses a 1/4" microphone and a 1/4" preamplifier with LEMO connection. The 43BA-2 is the equivalent CCP version.

The 43BB Low-noise Ear Simulator System is for acoustic low noise measurements on insert headphones, especially headphones with active noise cancellation. It is based on the IEC 60318-4 ear simulator standard. 43BB Low-noise Ear Simulator System includes a GRAS 12HF 1-Channel Power Module for Low-noise Systems

The 43BB-1 Low-noise Ear Simulator System is for acoustic low noise measurements on insert headphones, especially headphones with active noise cancellation. It is based on the IEC 60318-4 ear simulator standard. 43BB-1 Low-noise Ear Simulator System" includes a GRAS 12HF 1-Channel Power Module for Low-noise Systems. 43BB is shown in the product picture. For more information about 43BB-1 read the product introduction below.

The GRAS 43AD-S1 Artificial Ear with TEDS is a complete assembly for acoustical measurements on acoustical transmitters and loudspeakers. It can be integrated with a telephone test head or permanently installed on a production test line.