GRAS Releases New Production Line Microphones with EQset

GRAS Sound & Vibration launched the new GRAS 40PO-L and 40PO-H measurement microphones with EQset technology. These new production line microphones enable consistent and reliable audio testing, ensuring high-quality results across different locations. With a new capsule design and a frequency response up to 40kHz — suitable for High-Res compliance and ultrasonic applications — these microphones deliver improved accuracy in test results.

Following presentations at the 2019 AES International Headphone Conference in San Francisco or ISEAT in China, GRAS Sound & Vibration has now officially expanded its family of ear simulators with the launch of a model specially designed for the testing of high resolution audio capable headphones. Expanding on the GRAS RA0401/02 High-Frequency Ear Simulator, based on the standard IEC 60318-4 and extending the useful frequency range to 20 kHz, the new GRAS RA0403/04 Hi-Res Ear Simulator measures a frequency range to 50 kHz and beyond.

GRAS Sound & Vibration, the world-renowned manufacturer of high quality measurement microphones and related acoustic equipment, announced the availability of a new, High Resolution Ear Simulator designed specifically to meet the need for reliable and repeatable measurements of personal audio devices at high frequencies. An ideal solution for development of in-ear as well as supra- and circumaural headphones.