Catalog
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 RA0048 Pistonphone coupler
Pistonphone coupler which is factory mounted on GRAS Pistonphone and they are factory calibrated as one unit...
GRAS RA0049 Microphone adapter for pistonphones
Adapter for GRAS 1/4" and 7 mm microphones when calibrating using GRAS Pistonphones and Sound Calibrator...
GRAS RA0052 Test Jig
For use with GRAS couplers and artificial ears. It has an adjustable spring-loaded arm to exert a variable force on the test object...
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
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...
GRAS 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 GRAS 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...
GRAS RA0062 20 pF Preamplifier-input Adapter for 1/2" preamplifiers
The RA0062 is a 20 pF input adapter for 1/2" preamplifiers. One end screws on to a 1/2" preamplifier and the other end has a BNC input connector. This enables connecting a signal generator to the input of the preamplifier. Short circuiting the BNC input results only in loading the preampli..
GRAS RA0062-S1 50 pF Preamplifier-input Adapter for 1/2" preamplifiers
The RA0062-S1 is a 50 pF input adapter for 1/2" preamplifiers. One end screws on to a 1/2" preamplifier and the other end has a BNC input connector. This enables connecting a signal generator to the input of the preamplifier. Short circuiting the BNC input results only in loading the pream..
GRAS RA0063 Adapter for 1/8" microphone and 1/4" preamplifier
The RA0063 is an adapter for using a 1/8" microphone with a 1/4" preamplifier. It can be used with any standard 1/8" microphone and 1/4" preamplifier such as the GRAS 26AC...
GRAS RA0067 Transmitter Adapter for 1/2" microphones
The GRAS RA0067 enables a prepolarized 1/2" microphone (typically a GRAS 40AD) to be used as a high-impedance sound source...
GRAS RA0069 Microphone adapter for pistonphones
1/2" Adapter for 1/8" microphones when calibrating using GRAS pistonphones and Sound Calibrator...