Artificial ears, ear & mouth simulators

GRAS 44AA Mouth Simulator according to ITU-T Rec. P51 with built-in power amplifier

ITU-T rec.: P.51
Special feature: Built-in power amplifier

GRAS 44AA Mouth Simulator according to ITU-T Rec. P51 with built-in power amplifier

GRAS 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.GRAS 44AA is for testing telephone mouthpieces as well as other microphones similarly used in com..

GRAS 44AB Mouth Simulator according to ITU-T Rec. P51

ITU-T rec.: P.51
IEEE standards: 269, 661

GRAS 44AB Mouth Simulator according to ITU-T Rec. P51

GRAS 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.GRAS 44AB is for testing telephone mouthpieces as well as other microphones similarly used in communica..

GRAS RA0038 1/2'' 2cc Coupler according to IEC 60318-5

Volume: 2 cc
ANSI: S3.7
IEC: 60318-5
Special feature: For 1/2" pressure microphones

GRAS RA0038 1/2'' 2cc Coupler according to IEC 60318-5

The GRAS RA0038 Coupler is a standard 2 cm³ Coupler according to IEC 126 and ANSI S3.7-1973. It uses a ½" microphone (preferably the GRAS 40AG) with a suitable preamplifier (e.g. GRAS 26AC which is a ¼" preamplifier but is supplied with an adapter for ½" microphones)...

GRAS RA0039 Ear Simulator according to IEC 60318-1

Volume: Complex
ANSI: S3.7
IEC: 60318-1

GRAS RA0039 Ear Simulator according to IEC 60318-1

The GRAS IEC 318 RA0039 Ear Simulator is an ear simulator with an input impedance closely resembling that of an average human ear. When the RA0039 is coupled to a sound source, the impedance will load the sound source similar to the loading caused by the human ear.The RA0039 meets the requirements o..

GRAS RA0045 Externally Polarized Ear Simulator According to IEC 60318-4 (60711)

Volume: 1260 mm³ @ 500 Hz
Dyn range: 25 dB(A) to 164 dB
IEC: 60318-4

GRAS RA0045 Externally Polarized Ear Simulator According to IEC 60318-4 (60711)

The GRAS RA0045 is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. It includes a 40AG pressure microphone and is individually calibrated with this specific microphone...

GRAS RA0045-S1 Prepolarized Ear Simulator According to IEC 60318-4 (60711)

Volume: 1260 mm³ @ 500 Hz
Dyn range: 25 dB(A) to 150 dB
IEC: 60318-4

GRAS RA0045-S1 Prepolarized Ear Simulator According to IEC 60318-4 (60711)

GRAS RA0045-S1 is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045 includes a 40AO 1/2" prepolarized pressure microphon and each RA0045 is individually calibrated with this specific microphone...

GRAS RA0045-S4 Externally Polarized Ear Simulator Based on IEC 60318-4 (60711), High Sensitivity

Standards: IEC 60318-4 (based on), ITU-T P.57
Eff vol: 1260 mm³ @ 500 Hz
Res freq: 13.5 kHz ±1 kHz

GRAS RA0045-S4 Externally Polarized Ear Simulator Based on IEC 60318-4 (60711), High Sensitivity

The GRAS RA0045-S4 Ear Simulator is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045-S4 includes a 40AP pressure microphone and each RA0045-S4 is individually calibrated with this specific microphone...

GRAS RA0045-S5 Externally Polarized Ear Simulator Based on IEC 60318-4 (60711), High Pressure

Standards: IEC 60318-4 (based on), ITU-T P.57
Eff vol: 1260 mm³ @ 500 Hz
Res freq: 13.5 kHz ±1 kHz

GRAS RA0045-S5 Externally Polarized Ear Simulator Based on IEC 60318-4 (60711), High Pressure

The GRAS RA0045-S5 Ear Simulator is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045 includes a 40BP pressure microphone and each RA0045-S5 is individually calibrated with this specific microphone...

GRAS RA0045-S6 Prepolarized Ear Simulator Based on IEC 60318-4 (60711), High Sensitivity

Standards: IEC 60318-4 (based on), ITU-T P.57
Eff vol: 1260 mm³ @ 500 Hz
Res freq: 13.5 kHz ±1 kHz

GRAS RA0045-S6 Prepolarized Ear Simulator Based on IEC 60318-4 (60711), High Sensitivity

The GRAS RA0045-S6 Prepol Ear Sim IEC 60318-4, High Sensitivity is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045 includes a 40AD pressure microphone and each RA0045-S6 is individually calibrated with this specific microphone...

GRAS RA0045-S9 Externally Polarized Ear Simulator Based on IEC 60318-4 (60711), High Pressure

Standards: IEC 60318-4 (based on), ITU-T P.57
Eff vol: 1260 mm³ @ 500 Hz
Res freq: 13.5 kHz ±1 kHz

GRAS RA0045-S9 Externally Polarized Ear Simulator Based on IEC 60318-4 (60711), High Pressure

The GRAS RA0045-S9 Ear Simulator is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045-S9 includes a 40BH pressure microphone and each RA0045-S9 is individually calibrated with this specific microphone...

GRAS RA0056 Low-leak Pinna Simulator according to ITU-T Rec. P57 Type 3.2

Volume: Complex

GRAS RA0056 Low-leak Pinna Simulator according to ITU-T Rec. P57 Type 3.2

The GRAS RA0056 Low-leak Pinna Simulator is an outer ear simulator intended to be used with the Ear Simulator RA0045 to simulate a complete ear for testing telephones and loudspeakers..

GRAS RA0057 High-leak Pinna Simulator according to ITU-T Rec. P57 Type 3.2

Volume: Complex

GRAS RA0057 High-leak Pinna Simulator according to ITU-T Rec. P57 Type 3.2

The High-leak Pinna Simulator Type RA0057 is an outer ear simulator intended to be used with the Ear Simulator RA0045 to simulate a complete ear for testing telephones and loudspeakers...