Got a question?

If you have a question, feel free to contact us:

GRAS Sound & Vibration 

Headquarter | gras@grasacoustics.com
UK       | sales-uk@grasacoustics.com
USA    | sales-usa@grasacoustics.com
China | cnsales@grasacoustics.com


GRAS worldwide

PL and QC

Hi-Res Testing

Testing up to 50 kHz for ear simulator-based systems and 70 kHz for microphone-based systems

For standard testing, click here. For high-frequency testing, click here.

Universal Acoustic Test Fixtures    |     Ear Simulator Kits

Universal Acoustic Test Fixtures

Table-top test fixtures are easy to use and ideal for testing on the production line when fast and repeatable mounting is an important parameter.

45CA Headphone/Hearing Protector Test Fixture
2-channel Test Fixture

Very high Self-Insertion Loss (<65 dB)

Modifiable with various ear simulators and pinnae

Perfect for ANC performance test due to the high SIL

Headphone       Earphone        In Ear Blue

Hi-Res Testing (50 kHz)

45CA-11 Hi-Res ear simulators and anthropometric pinnae, 2-Ch. LEMO

45CA-12 Hi-Res ear simulators and anthropometric pinnae, 2-Ch. CCP
45CC Headphone Test Fixture
Modular 2-channel Test Fixture

ANC performance test (low-level ANC)

Adjustable to suit any headphone test setup

Precise setup reproduction for use between R&D, PL and QA/QC

Headphone        Headset blue

Hi-Res Testing with IEC 61094 1/4” WS3P Microphones

45CC-9 1/4” microphones, 2-Ch. LEMO

45CC-10 1/4” microphones, 2-Ch. CCP

Ear Simulator Kits

Table-top test fixtures are easy to use and ideal for testing on the production line when fast and repeatable mounting is an important parameter.

43AG Ear and Cheek Simulator
1-channel Table-top Test Fixture

Can measure circumaural, supra-aural and in-ear headphones

Headphone        EarPods blue        In Ear Blue

Hi-res Testing (50 kHz)

43AG-8 Hi-Res ear simulator and anthropometric pinna, LEMO

43AG-9 Hi-Res ear simulator and anthropometric pinna, CCP
43AC Ear Simulator Kit
1-channel Table-top Test Fixture

For measurements on hearing aids

Earphone        In Ear Blue

Hi-Res Testing (50 kHz)

43AC-S6 Hi-Res ear simulator, LEMO

43AC-S7 Hi-Res ear simulator, CCP