Volume: 6 cc ANSI: S3.7 IEC: 60318-3
The GRAS RA0075 is a 6cc coupler for testing earphones according to ANSI 3.7 - 1995 and IEC 60318-3.
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.
