GRAS RA0075 6cc Coupler
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GRAS RA0075 6cc Coupler
The GRAS RA0075 is a 6cc coupler. It is for testing earphones according to ANSI 3.7 - 1995 and IEC 60318-3.It can be used with a 1" pressure microphone like GRAS 40EN, a 1/2" preamplifier like GRAS 26AK and various adapters, e.g. GRAS RA0073.