GRAS 43BA-3 1/4" 0.4cc CCP High Frequency Coupler Kit, High Sensitivity

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The GRAS 43BA-3 is a high frequency, high sensitivity 1/4" 0.4cc coupler kit for test of hearing aids at frequencies up to 16 kHz. It is a complete kit with a ¼" Pressure Microphone and a ¼" Preamplifier with CCP connection and the same adapters known from the reference 2cc coupler. It is easy and safe to handle and calibrate because the microphone grid does not have to be removed for mounting or calibration.

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