1. 50VI-1 Vector intensity probe
    Freq range: IEC 61043 Class 1
    Dyn range: 25 dB(A) to 152 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 50VI-1 Vector intensity probe

    The G.R.A.S. 50VI-1 Vector Intensity Probe is a flexible and adjustable, two or three-dimensional sound-intensity probe. The probe handle has marked inputs for 3 pairs of preamplifiers (a pair for each of the mutually-perpendicular directions) and a 24-pin LEMO output socket at its base for connecting it to a suitable Power Module (e.g. Type 12AC) or Power Modules (via cable adapter).

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  2. Left Anthropometric Pinna for 45CA
    Anatomically shaped concha and ear canal
    Improved fit and repeatability
    Outer pinna with improved collapsability
    Resilient mounting

    G.R.A.S. KB5011 Left Anthropometric Pinna for 45CA, 35 Shore OO

    KB5011 is a left anthropometric pinna for 45CA for accurate and repeatable testing of headphones and earphones. It has anatomically correct ear-entrance and ear-canal with correct soft ear helix and provides perfect sealing and insertion accuracy for headphones and earphones. The hardness is 35 Shore OO

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  3. Right Anthropometric Pinna for 45CA
    Anatomically shaped concha and ear canal
    Improved fit and repeatability
    Outer pinna with improved collapsability
    Resilient mounting

    G.R.A.S. KB5010 Right Anthropometric Pinna for 45CA, 35 Shore OO

    KB5010 is a right anthropometric pinna for 45CA for accurate and repeatable testing of headphones and earphones. It has anatomically correct ear-entrance and ear-canal with correct soft ear helix and provides perfect sealing and insertion accuracy for headphones and earphones. The hardness is 35 Shore OO

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  4. 43AG Ear & Cheek Simulator
    Dyn range:
    25 dB(A) to 164 dB or
    10.5 dB(A) to 113 dB (low-noise version)
    ANSI: S3.7
    IEC: 60318-4

    G.R.A.S. 43AG Ear & Cheek Simulator

    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 or an Anthropometric Pinna, either with an IEC 60318-4 Ear Simulator or a Low-noise Ear Simulator system.

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  5. 50AI-D 1/2"  Intensity Probe
    Freq range: Ref. IEC 61043 Class 1
    Dyn range: 25 dB(A) to 152 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 50AI-D 1/2" LEMO Intensity Probe

    The G.R.A.S. 50AI-D Sound-intensity Probe builds on more than 20 years of theory and practical experience in sound-intensity measurements. It is adjustable, durable and fully complies with the requirements in IEC 61043, Electroacoustics- Instruments for the Measurement of Sound Intensity- Measurements with Pairs of Pressure Sensing Microphones, 1993 for Class 1 Sound-intensity probes.

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  6. RA0058 1/2'' to 1'' Microphone Adapter

    Length: 17.00 mm
    Diameter: 23.77 mm
    Material Stainless steel

    G.R.A.S. RA0058 1/2'' to 1'' Microphone Adapter

    Dimension adapter which increases the diameter of a 1/2" microphone to 1". The adapter is relevant for use with G.R.A.S. 45CA Hearing-protector test fixture or in other situations where a 1/2" microphone is to be mounted in a 1" inner diameter hole/cylinder.

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  7. 50AI-C 1/2"  Intensity Probe
    Freq range: Ref. IEC 61043 Class 1
    Dyn range: 25 dB(A) to 152 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 50AI-C 1/2" LEMO Intensity Probe

    The G.R.A.S. 50AI-C Sound-intensity Probe builds on more than 20 years of theory and practical experience in sound-intensity measurements. It is adjustable, durable and fully complies with the requirements in IEC 61043, Electroacoustics- Instruments for the Measurement of Sound Intensity- Measurements with Pairs of Pressure Sensing Microphones, 1993 for Class 1 Sound-intensity probes.

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  8. 50GI-RP CCP Rugged Intensity Probe
    Freq range: IEC 61043 Class 1
    Dyn range: 27 dB(A) to 163 dB
    Sensitivity: 12.5 mV/Pa

    G.R.A.S 50GI-RP CCP Rugged Intensity Probe

    Type 50GI-RP is a sound intensity probe for direct connection to signal analyzers or data acqusition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe..

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  9. 50GI-P CCP Rugged Intensity Probe
    Freq range: IEC 61043 Class 1
    Dyn range: 27 dB(A) to 163 dB
    Sensitivity: 12.5 mV/Pa

    G.R.A.S 50GI-P CCP Rugged Intensity Probe

    Type 50GI-P is a sound intensity probe for direct connection to signal analyzers or data acqusition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe.

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  10. 50GI-R Intensity Probe with Remote Control
    Freq range: IEC 61043 Class 1
    Dyn range: 27 dB(A) to 163 dB
    Sensitivity: 12.5 mV/pa

    G.R.A.S. 50GI-R CCP Intensity Probe with Remote Control

    The 50GI-R is a sound intensity probe for direct connection to signal analyzers or data acquisition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe. The small rugged ¼" CCP preamplifiers ensure minimum disturbances to the sound field for accurate measurements in the full frequency range.

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  11. 46BL 1/4" Pressure Set, High Sensitivity
    Freq range: 4 Hz to 20 kHz
    Dyn range: 25 dB(A) to 147 dB
    Sensitivity: 18 mV/Pa

    G.R.A.S. 46BL 1/4" CCP Pressure Standard Microphone Set, High Sensitivity

    The 46BL is a high-sensitive, low-noise 1/4" CCP condenser microphone set with rear-venting.

    The set consists of a 40BL 1/4" CCP Pressure Microphone, High Sensitivity and a 26CB 1/4" preamplifier with Microdot connector.

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  12. 45BC-4 With Mouth Sim for Telephone Test, 1-Ch CCP
    Connection: Constant Current Power (0 V/CCP)
    Channel(s): 1
    ANSI standards: S3.36, S3.25
    IEC standards:60318-4 (formerly 60711), 60318-7 (formerly 60959)
    Special feature: Telephone test

    G.R.A.S. 45BC-4 KEMAR Head & Torso with Mouth Simulator for Telephone Test, 1-Ch CCP

    The 45BC-4 KEMAR Head & Torso with Mouth Simulator for Telephone Test, 1-Ch CCP is configured with pinnae and with IEC 60318-4 Ear Simulator and ear canal extension in the right ear. Due to the design of KEMAR, realistic measurement in a sound environment as experienced by a human being using a hearing aid is possible. In addition, the 45BC-3 is provided with a mouth simulator for testing of the microphone in the telephone. The 45EA handset positioning system is included. Its CCP equivalent is G.R.A.S. 45BC-3 KEMAR Head & Torso with Mouth Simulator for Telephone Test, 1-Ch LEMO.

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  13. 45BC-3 With Mouth Sim for Telephone Test, 1-Ch LEMO
    Connection: Traditional Power Supply (200 V/LEMO)
    Channel(s): 1
    ANSI: S3.36, S3.25
    IEC: 60318-4
    ITU-T Rec. P.57 Type 3.3 based on ITU-T Rec. P.58
    Special feature: Built-in power amplifier for mouth simulator

    G.R.A.S. 45BC-3 KEMAR Head & Torso with Mouth Simulator for Telephone Test, 1-Ch LEMO

    The 45BC-3 KEMAR Head & Torso with Mouth Simulator for Telephone Test, 1-Ch LEMO is configured with pinnae and with IEC 60318-4 Ear Simulator and ear canal extension in the right ear. Due to the design of KEMAR, realistic measurement in a sound environment as experienced by a human being using a hearing aid is possible. In addition, the 45BC-3 is provided with a mouth simulator for testing of the microphone in the telephone. The 45EA handset positioning system is included. Its CCP equivalent is G.R.A.S. 45BC-4 KEMAR Head & Torso with Mouth Simulator for Telephone Test, 1-Ch CCP.

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  14. 44AB Mouth Sim ITU-T P51
    ITU-T rec.: P.51
    IEEE standards: 269, 661

    G.R.A.S. 44AB Mouth Simulator according to ITU-T Rec. P51

    G.R.A.S. 44AB Mouth Simulator is a sound source which simulates the sound field around the human mouth at close quarters and complies with the Standards IEEE 269, 661 and ITU-T Rec. P51.

    G.R.A.S. 44AB is for testing telephone mouthpieces as well as other microphones similarly used in communication networks.

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  15. 44AA Mouth Sim ITU-T P51, power amp
    ITU-T rec.: P.51
    Special feature: Built-in power amplifier

    G.R.A.S. 44AA Mouth Simulator according to ITU-T Rec. P51 with built-in power amplifier

    G.R.A.S. 44AA Mouth Simulator  is a sound source which simulates the sound field around the human mouth at close quarters and complies with the Standards IEEE 269, 661 and ITU-T Rec. P51.

    G.R.A.S. 44AA is for testing telephone mouthpieces as well as other microphones similarly used in communication networks.

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  16. 46AE 1/2'' Free-field Set
    Freq range: 3.15 Hz to 20 kHz
    Dyn range: 17 dB(A) to 138 dB
    Sensitivity: 50 mV/Pa
    Use: For general acoustic diagnostics

    G.R.A.S. 46AE 1/2'' CCP Free-field Standard Microphone Set

    The G.R.A.S. 46AE is a 1/2" Constant Current Power (CCP) free-field microphone set for measuring medium sound pressure levels at medium frequencies. It is terminated with a BNC connector and is TEDS compatible. The equivalent traditional 200 V (LEMO) type is G.R.A.S. 46AF.

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  17. 50GI CCP Intensity Probe
    Freq range: Ref. IEC 61043 Class 1
    Dyn range: 27 dB(A) to 163
    Sensitivity: 12.5 mV/Pa

    G.R.A.S. 50GI CCP Intensity Probe

    G.R.A.S. 50GI is a sound intensity probe for direct connection to signal analyzers or data acqusition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe. The small rugged 1/4" CCP preamplifiers ensure minimum disturbances to the sound field for accurate measurements in the full frequency range.

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  18. 50AI-B 1/2"  Intensity Probe
    Freq range: Ref. IEC 61043 Class 1
    Dyn range: 25 dB(A) to 152 dB
    Sensitivity: 25 mV/Pa

    G.R.A.S. 50AI-B 1/2" LEMO Intensity Probe

    The G.R.A.S. 50AI-B Sound-intensity Probe builds on more than 20 years of theory and practical experience in sound-intensity measurements. It is adjustable, durable and fully complies with the requirements in IEC 61043, Electroacoustics- Instruments for the Measurement of Sound Intensity- Measurements with Pairs of Pressure Sensing Microphones, 1993 for Class 1 Sound-intensity probes.

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  19. /
    Volume: 1260 mm³ @ 500 Hz
    Dyn range: 10.5 dB(A) to 113 dB
    Based on IEC 60318-4

    G.R.A.S. 43BB-1 Low-noise Ear Simulator System

    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. Learn More
  20. 45BB-9 KEMAR with Anthropometric Pinnae 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-9 KEMAR with Anthropometric Pinnae for Ear- and Headphone Test, 2-Ch LEMO

    The 45BB-9 KEMAR is a manikin configured with externally polarized ear simulators and anthropometric pinnae for dual-channel ear- and headphone test. Its corresponding CCP equivalent is the G.R.A.S. 45BB-10 KEMAR with Anthropometric Pinnae for Ear- and Headphone Test, 2-Ch CCP.

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