NEW Product Launch | GRAS 45BD AutoKEMAR

NEW Product Launch | GRAS 45BD AutoKEMAR

Hear the Cabin as Occupants Do

The Most Flexible and Realistic Artificial Head for Automotive In-Cabin Testing.
GRAS 45BD AutoKEMAR is designed to capture sound as it is truly perceived inside modern vehicle cabins—supporting confident decisions on sound quality, communication, and user experience.

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Meet the PR0003 and PR0004 AutoArrays

Meet the PR0003 and PR0004 AutoArrays

Meet the PR0003 and PR0004 AutoArrays: precision-engineered 6-microphone arrays for acoustic measurements in vehicle interiors. Choose from two configurations—Cross or AES, and streamline your workflow for audio system tuning, NVH analysis, and interior sound field mapping

Explore the AutoArray
New Microphones Launched!

GRAS 40PO Launch

New Microphones Launched!

GRAS proudly introduces two new EQset technology microphones, bringing real value to audio brands and manufacturers:

  • Minimize production downtime
  • Improve product quality
  • Reduce false passes
  • Boost efficiency
Learn more

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Acoustic Sensors for NVH Testing

Acoustic Sensors for NVH Testing

As a world leader in developing cutting-edge acoustic sensors, GRAS provides new and improved microphones for more efficient and reliable acoustic automotive NVH testing.

Explore the new NVH Microphones >

Selected products

A world of famous GRAS quality

GRAS 46AE 1/2'' CCP Free-field Standard Microphone Set

GRAS 46AE 1/2'' CCP Free-field Standard Microphone Set

Microphone sets with constant current power (CCP)

GRAS 26AG 1/2'' Insert Voltage Preamplifier with Integrated Connector

GRAS 26AG 1/2'' Insert Voltage Preamplifier with Integrated Connector

Preamplifiers and Sound Calibrators

GRAS 40AF 1/2" Ext. Polarized Free-field Microphone

GRAS 40AF 1/2" Ext. Polarized Free-field Microphone

Externally polarized cartridges (200 V)

GRAS 42AG Multifunction Sound Calibrator, Class 1

GRAS 42AG Multifunction Sound Calibrator, Class 1

Sound calibrator

GRAS 43AG Ear & Cheek Simulator

GRAS 43AG Ear & Cheek Simulator

Ear simulator kits with constant current power (CCP)

GRAS 45BB KEMAR Head & Torso, Non-configured

GRAS 45BB KEMAR Head & Torso, Non-configured

KEMAR, Non-configured

GRAS 45CC Headphone Test Fixture

GRAS 45CC Headphone Test Fixture

For ear- and headphone test

GRAS 50AI-LP 1/2" CCP Rugged Intensity Probe for Siemens DAQ

GRAS 50AI-LP 1/2" CCP Rugged Intensity Probe for Siemens DAQ

Intensity Probes

67HA 1 m LEMO Hemisphere kit

67HA 1 m LEMO Hemisphere kit

LEMO Hemisphere kit

GRAS RA0045 Externally Polarized Ear Simulator According to IEC 60318-4 (60711)

GRAS RA0045 Externally Polarized Ear Simulator According to IEC 60318-4 (60711)

Externally polarized cartridges (200 V)

Read the latest news

...or read the archive.

18/03-2026

Introducing the GRAS 45BD AutoKEMAR

A next-generation Head & Torso Simulator (HATS) designed specifically for automotive in-cabin acoustic testing.

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03/11-2025

Rewiring Noise: Why GRAS Is the GAME-CHANGER for Noise-Sensitive Minds

For some people, the gentle hum of a kettle or the murmur of a distant conversation isn’t just background—it’s overpowering. Scientists are uncovering the neural mechanisms behind this heightened sensitivity, revealing how the brain’s sound-processing pathways can turn everyday noises into overwhelming experiences—and offering new hope for better understanding and treatment.

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10/09-2025

NASA Publishes Acoustic Dataset from STRIVES5 eVTOL Tests

NASA’s STRIVES5 acoustic dataset shines a spotlight on the critical role played by 58 GRAS 67AX groundembedded microphones in capturing high-fidelity eVTOL noise signatures—powering better modeling, regulation, and public acceptance for tomorrow’s urban aircraft.

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