The 45CC Configurations
For your convenience, we have made 45CC available in 12 different pre-configurations.
These are:
45CC Configured with 1/2” Microphones
45CC-1 with Externally Polarized 1/2” Microphones
45CC-2 with Prepolarized 1/2” Microphones
45CC configured with 1/2” externally polarized or prepolarized microphones is primarily intended
as a tool for QC and PL testing of headphones. Except for the mounting of the ear plate assem
-
blies, they come fully assembled and tested from the factory.
45CC Configured with Ear Simulators
45CC-3 with IEC 60318-1 Ear Simulators and Ext. Polarized 1/2” Microphones
45CC-4 with IEC 60318-1 Ear Simulators and Prepolarized 1/2” Microphones
45CC configured with IEC 60318-1 ear simulators and 1/2” externally polarized or prepolar
-
ized microphones is primarily intended as a tool for QC and PL testing of headphones. Where the
acoustical load from an ear simulator is required, the use of the IEC 60318-1 ear simulators also
mean that testing according to IEC 60318-1 and ITU-T Recommendations P.57 is possible. Except
for the mounting of the ear plate assemblies, they come fully assembled and tested from the fac
-
tory.
45CC Configured with Mouth Simulator and 1/2” Microphones
45CC-5 with Mouth Simulator and Ext. Polarized 1/2” Microphones
45CC-6 with Mouth Simulator and Prepolarized 1/2” Microphones
45CC configured with 1/2” externally polarized or prepolarized microphones and the GRAS 44AA
Mouth Simulator is primarily intended as a tool for QC and PL testing of communication headsets.
Except for the mounting of the ear plate assemblies and the mouth simulator, they come fully as
-
sembled and tested from the factory.
45CC Configured with Mouth Simulator and Ear Simulators
45CC-7 Mouth Simulator, IEC 60318-1 Ear Simulators and Ext. Polarized 1/2” Microphones
45CC-8 Mouth Simulator, IEC 60318-1 Ear Simulators and Prepolarized 1/2” Microphones
45CC configured with IEC 60318-1 ear simulators, 1/2” externally polarized or prepolarized mi
-
crophones and the GRAS 44AA Mouth Simulator is primarily intended as a tool for QC and PL test
-
ing of communication headsets. Where the acoustical load from an ear simulator is required, the
use of the IEC 60318-1 ear simulators also mean that testing according to IEC 60318-1 and ITU-T
Recommendations P.57 is possible.
Except for the mounting of the ear plate assemblies and the mouth simulator, they come fully as
-
sembled and tested from the factory.
Instruction Manual
6 | GRAS 45CC Headphone Test Fixture
