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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

High-Frequency Testing

Testing up to 20 kHz for ear simulator-based and microphone-based systems

For standard testing, click here. For hi-res 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 (<65dB)

Modifiable with various ear simulators and pinnae

Perfect for ANC performance test due to the high SIL

Headphone       Earphone        In Ear Blue

High-Frequency Testing (20 kHz)

45CA-9 High-frequency ear simulators and anthropometric pinnae, 2-Ch LEMO

45CA-10 High-frequency 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

High-Frequency Testing with IEC 61094 1/2” WS2P Microphones

45CC-1 1/2” microphones, 2-Ch. LEMO

45CC-2 1/2” microphones, 2-Ch. CCP

Headphone       Headset        EarPods blue        In Ear Blue

High-Frequency Testing with IEC 60318-4 with Pinnae

45CC-16 1/2” microphones with pinnae, 2-Ch. LEMO

45CC-17 1/2” microphones with pinnae, 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

High-Frequency Testing (20 kHz)

43AG-6 High-frequency ear simulator and anthropometric pinnae, LEMO

43AG-7 High-frequency ear simulator and anthropometric pinnae, CCP
43AC Ear Simulator Kit
1-channel Table-top Test Fixture

For measurements on hearing aids

EarPods blue        In Ear Blue

High-Frequency Testing (20 kHz)

43AC-S4 High-frequency ear simulator, LEMO

43AC-S5 High-frequency ear simulator, CCP