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All items tagged with IEC 61672 Class 1 (2)
NTi Audio Receives Class 1 Certification for XL3 Sound Level Meter
July 23, 2024 by audioXpress Staff

NTi Audio Receives Class 1 Certification for XL3 Sound Level Meter

The NTi XL3 Sound Level Meter has received type approval from the Physikalisch-Technische Bundesanstalt (PTB) entity in Germany and can therefore be used for precision-grade Class 1 measurements in full compliance with the sound level meter standard IEC 61672:2014. As NTi Audio confirms, this level of certification qualifies the XL3 for legally compliant measurements of environmental noise, occupational noise, and sound insulation tests in Germany and in many other countries around the world.
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Fresh From the Bench: Earthworks M23R Measurement Microphone
November 19, 2020 by Stuart Yaniger

Fresh From the Bench: Earthworks M23R Measurement Microphone

In this review, Stuart Yaniger details his findings about the M23R Earthworks measurement microphone. The M23R is the latest omnidirectional model in Earthworks’ infinitely matched series of measurement microphones. It is designed to be an affordable reference solution, delivering an IEC 61672 Class 1 frequency response before applying any equalization. This article was originally published in audioXpress, November 2020.
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