Beyerdynamic MM 1 (2023 version)

The MM 1 measuring microphone is used wherever exact results are required. Equipped with an omnidirectional characteristic, the microphone is ideal for measuring studio rooms, PA and PA systems. In conjunction with a spectrum analyzer, the sound pressure levels of loudspeakers can also be monitored in addition to frequency response measurements. The MM 1 also provides valuable services when examining sound signals in research, development and industry. The MM 1 impresses with its high accuracy when taking measurements - both live and in the studio. With a deviation of +/- 1.5 dB in the range between 50 Hz and 16 kHz, beyerdynamic manufactures with an extremely low tolerance. This is achieved by manually checking the frequency response of each microphone. A high-quality back electret capacitor capsule works as a pressure receiver in the MM 1 . The microphone is diffuse field equalized and has a linear frequency response at 90°. This means that studio rooms, for example, can be measured easily and without much preparation. The design of the MM 1 aims to achieve exact measurement results. Thanks to the slim, full metal housing with the detached microphone capsule, the design-related influence on the sound field is very low. This means that pressure build-up at high frequencies can be largely avoided. In addition, the lightweight and compact microphone is easy to position.