The microphones feature a frequency response up to 40 kHz (suitable for high-fidelity standards and ultrasonic applications) and incorporate a new packaging design to improve test accuracy. These improvements will elevate audio quality in global manufacturing, ensuring product consistency while strictly adhering to industry standards and customer-specific requirements. This is essential to maintaining trust, consistency, and profitability between audio brands and manufacturers.
The microphones also effectively reduce error rates, simplify calibration processes, and ensure compliance with product specifications. Moreover, using the EQset™ microphones allows for seamless replacements without adjusting the signal chain, ensuring production lines run smoothly without downtime. Therefore, the GRAS EQset™ microphones provide a cost-effective testing solution, reducing production costs without compromising quality or product specification compliance.
First Production Line Microphone to Support Ultrasonic Measurements
The new GRAS 40PO-L and 40PO-H are groundbreaking additions to the GRAS EQset™ production microphone portfolio. The 40PO-L microphone is designed for low sound pressure level measurements, while the GRAS 40PO-H is capable of measuring higher sound pressure levels. Specifically, the GRAS 40PO-L has a dynamic range from 30 dBA to 128 dBpk, while the GRAS 40PO-H spans from 36 dBA to 138 dBpk. Both new microphones meet TEDs standards, a first for EQset™ microphones.
The ultrasonic capability of this new microphone makes it ideal for high-fidelity audio testing, harmonic and intermodulation distortion testing, and high-frequency drivers. They can also measure ultrasonic noise interference and ultrasonic applications in smart devices, such as presence detection, motion detection, and distance sensing.
GRAS Product Manager Santiago Rayes explains, "As early as 2023, we introduced the groundbreaking EQset™ technology worldwide. GRAS is committed to continuous innovation and improvement, staying at the forefront of testing and measurement microphone technology. Therefore, the launch of the GRAS 40PO-L and 40PO-H microphones is a natural progression. Once again, it demonstrates GRAS's commitment to offering innovative, economical, high-precision testing solutions, breaking the traditional perceptions of such acoustic sensors. The 40PO-L and 40PO-H bridge the gap between high-performance production line microphones and the traditional measurement microphones we are well-known for."