The Gold Standard in In-Cabin Acoustic Testing

The GRAS AutoArray: Precision. Efficiency. Repeatability

Work Better with the Right Tools

Accurate and repeatable data is critical when testing in-cabin acoustics—whether for tuning audio systems, analyzing NVH data, or ensuring design consistency across platforms.

The GRAS AutoArray PR0003 and PR0004 are purpose-built microphone arrays designed to simplify in-cabin acoustic testing. With a robust structure, precise positioning tools, and two field-proven configurations, they help reduce setup time, improve measurement repeatability, and ensure reliable results where they matter most.

Discover GRAS New Microphone Arrays

GRAS PR0003 GRAS PR0004

Built for Modern Automotive Challenges

From general vehicle acoustic tests to sound system tuning, the GRAS AutoArray gives you a head start on even the toughest testing tasks.

Perfect for:

Audio system performance testing and characterization
Audio system tuning and optimization
Cabin acoustic benchmarking and comparison
In-cabin sound field mapping analysis
In-cabin NVH (Noise, Vibration and Harshness) measurements
And much more — all with the confidence of precise, repeatable results.

Why Engineers Love the AutoArray

Two configurations — Cross or AES — for your exact test needs
Spatial representation of the listener’s head inside the car
Optimized for 1/4” microphones to reduce measurement uncertainty
Quick and easy setup for reliable and repeatable test results
Single-cable convenience to avoid cable clutter
Precise, adjustable positioning tools
Rugged, automotive-ready build quality
Works seamlessly with GRAS high-sensitivity microphones and Audio Precision analyzers for a complete measurement solution

Complete In-Cabin Solution

Pair the AutoArray with our trusted GRAS 46BL-1 or 46BC microphones and an Audio Precision analyzer to get a turnkey in-cabin testing solution — backed by the expertise of Axiometrix Solutions.

What Our Experts Say

"The GRAS AutoArray gives engineers a fast, repeatable way to meet the ever-rising expectations for cabin acoustics and automotive audio systems among modern car buyers. It’s a smarter, more efficient way to get the job done — and done right.”
— Santiago Rayes, Product Manager, GRAS Sound & Vibration