For ear- and headphone test
ISO: 4869-3
IEC: 60318-1 and 60318-4
depending on configuration
GRAS 45CA Headphone/Hearing-protector Test Fixture
The GRAS 45CA is a versatile test fixture for measuring sound isolation of hearing-protectors according to ISO 4869-3 and ear- and headphones according to IEC60318-1 or 60318-4. For testing hearing-protectors according to ANSI/ASA S12.42, choose GRAS 45CB.
IEC 60318-1 ear simulators
IEC 60318-4 ear simulators
Human-llike pinna
Easy in situ calibration
GRAS 45CC Headphone Test Fixture
45CC with TEDS is a flexible and configurable platform for dual-channel testing of headphones and headsets. It has multiple configuration options: microphones, IEC 60318-1 and IEC 60318-4 ear simulators, anthropometric pinnae and optional ITU-T P.51 mouth simulator. It can be adjusted very precisely to support different headphone/headset designs and sizes for high accuracy and repeatability. It is well suited for Research and Development, Production Engineering, Quality Control and Production Line testing.
ITU-T rec.: P. 64
GRAS 45EB Earbud Positioning System for KEMAR
The GRAS 45EB Ear-bud Positioning System is made for the GRAS 45BB & 45BC Head and torso simulator. The system is designed for positioning and holding ear-buds or ear-borne devices in the concha of the pinna simulator.
