Test fixtures

Test fixtures

  1. For telephone test
    For telephone test
  2. For ear- and headphone test
    For ear- and headphone test
  3. For hearing-protector test
    For hearing-protector test
  1. 45AA Telephone Test Head
    IEC 60318 or IEC 60711 depending on configuration

    G.R.A.S. 45AA Telephone Test Head

    The G.R.A.S. 45AA Telephone Test Head is a tailor-made fixture for testing the acoustic performance of telephone handsets in accordance with international standards and recommendations. The design of the G.R.A.S. 45AA combines precision with a robust construction to ensure stability and reproducible test results with a minimum of acoustic interference.

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  2. 43AG-S1 CCP Ear & Cheek Sim Kit IEC 60318-4 & -7
    Connection: 0 V/CCP
    Volume: Complex
    Dyn range: 25 dB(A) to 150 dB
    ANSI: S3.7
    IEC: 60318-4

    G.R.A.S. 43AG-S1 CCP Ear & Cheek Simulator Kit Based on IEC 60318-4 & -7

    The G.R.A.S. 43AG-S1 Ear and Cheek Simulator represents the section of a head 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 with a Shore hardness of 55 – OO or 35 – OO to be used with an IEC 60318-4 (formerly IEC 60711) Ear Simulator.

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  3. 43AG Ear & Cheek Sim Kit IEC 60318-4 & -7
    Connection: 200 V/LEMO
    Volume: Complex
    Dyn range: 25 dB(A) to 164 dB
    ANSI: S3.7
    IEC: 60318-4

    G.R.A.S. 43AG Ear & Cheek Simulator Kit Based on IEC 60318-4 & -7

    The G.R.A.S. 43AG Ear and Cheek Simulator represents the section of a head 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 with a Shore hardness of 55 – OO or 35 – OO to be used with an IEC 60318-4 (formerly IEC 60711) Ear Simulator.

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  4. 45CA Hearing-Protector Test Fixture
    ISO: 4869-3
    IEC: 60318-1 and 60318-4 depending on configuration

    G.R.A.S. 45CA Hearing-Protector Test Fixture

    The G.R.A.S. 45CA Hearing-protector Test Fixture is a versatile test fixture for testing hearing-protectors and ear- and headphones according to the ISO 4869-3 standard.
    For testing hearing-protectors according to the ANSI/ASA S12.42 standard, choose G.R.A.S. 45CB.

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  5. 45CB Acoustic Test Fixture
    ANSI: S12.42

    G.R.A.S. 45CB Acoustic Test Fixture

    The G.R.A.S. 45CB Acoustic Test Fixture is specified and designed to comply with the newly released ANSI/ASA S12.42 standard. For testing in accordance with the ISO 4869-3 standard, choose G.R.A.S. 45CA.

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  6. 45EB Earbud Positioning System for KEMAR
    ITU-T rec.: P. 64

    G.R.A.S. 45EB Earbud Positioning System for KEMAR

    The G.R.A.S. 45EB Ear-bud Positioning System is made for the G.R.A.S. 45BB & 45BC Head and torso simulator. The system is designed for positioning and holding ear-buds or ear-borne devices in the concha of the pinna simulator. Learn More
  7. 45EA Handset Positioning System for KEMAR
    ITU-T rec.: P. 64

    G.R.A.S. 45EA Handset Positioning System for KEMAR

    The 45EA Handset Positioning System for KEMAR is an easy-to-use telephone measurement tool and advanced alternative to conventional telephone test fixtures. It is designed with maximum flexibility and acoustic performance in mind for laboratories and development environments that care about the acoustic quality of their products.

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  8. For Test of Binaural Hearing Aid, 2-Ch CCP
    Connection: Constant Current Power (0 V/CCP)
    Channel(s): 2
    ANSI: S3.36, S3.25
    IEC: 60318-7, 60318-4
    ITU-T Rec. P.57 Type 3.3 based on ITU-T Rec. P.58

    G.R.A.S. 45BB-8 Head & Torso for Test of Binaural Hearing Aid, 2-Ch CCP

    The 45BB-8 KEMAR Head and Torso for test of binaural HA, 2-Ch CCP is an acoustic research tool with built-in ear simulators that simulates the changes that occur to soundwaves as they pass a human head and torso. KEMAR fitted with pinna simulator, ear canal extension, and IEC 60318-4 Ear Simulator resembles the acoustic impedance of the human ear. This KEMAR configuration is suitable for hearing aids using RF communication by using non-metal (POM) ear canal extensions and ear holder plates.Its corresponding LEMO equivalent is 45BB-7.

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  9. For Test of Binaural Hearing Aid, 2-Ch LEMO
    Connection: Traditional Power Supply (200 V/LEMO)
    Channel(s): 2
    ANSI: S3.36, S3.25
    IEC: 60318-7, 60318-4
    ITU-T Rec. P.57 Type 3.3 based on ITU-T Rec. P.58

    G.R.A.S. 45BB-7 Head & Torso for Test of Binaural Hearing Aid, 2-Ch LEMO

    The 45BB-7 KEMAR Head and Torso for test of binaural HA, 2-Ch LEMO is an acoustic research tool with built-in ear simulators that simulates the changes that occur to soundwaves as they pass a human head and torso. KEMAR fitted with pinna simulator, ear canal extension, and IEC 60318-4 Ear Simulator resembles the acoustic impedance of the human ear. This KEMAR configuration is suitable for hearing aids using RF communication by using non-metal (POM) ear canal extensions and ear holder plates.Its corresponding CCP equivalent is 45BB-8.

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  10. For Ear- and Headphone Test, 2-Ch LEMO
    Connection: Traditional Power Supply (200 V/LEMO)
    Channel(s): 2
    ANSI: S3.36, S3.25
    IEC: 60318-4
    ITU-T Rec. P.57 Type 3.3 based on ITU-T Rec. P.58

    G.R.A.S. 45BB-5 Head & Torso for Ear- and Headphone Test, 2-Ch LEMO

    The 45BB-5 KEMAR Head & Torso for ear- and headphone test, 2-Ch LEMO is an acoustic research tool with built-in ear simulators that simulates the changes that occur to soundwaves as they pass a human head and torso. KEMAR fitted with pinna simulator, ear canal extension, and IEC 60318-4 Ear Simulator resembles the acoustic impedance of the human ear. Its corresponding CCP equivalent is G.R.A.S. 45BB-6 KEMAR Head & Torso for ear- and headphone test, 2-Ch CCP.

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  11. For Ear- and Headphone Test, 2-Ch CCP
    Connection: Constant Current Power (0 V/CCP)
    Channel(s): 2
    ANSI: S3.36, S3.25
    IEC: 60318-4
    ITU-T Rec. P.57 Type 3.3 based on ITU-T Rec. P.58

    G.R.A.S. 45BB-6 Head & Torso for Ear- and Headphone Test, 2-Ch CCP

    The 45BB-6 KEMAR Head & Torso for ear- and headphone test, 2-Ch CCP is an acoustic research tool with built-in ear simulators that simulates the changes that occur to soundwaves as they pass a human head and torso. KEMAR fitted with pinna simulator, ear canal extension, and IEC 60318-4 Ear Simulator resembles the acoustic impedance of the human ear. Its corresponding LEMO equivalent is G.R.A.S. 45BB-5 KEMAR Head & Torso for ear- and headphone test, 2-Ch LEMO.

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