MK 250

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    The MK 250 has a free field equalized frequency response of the transmission factor and is especially designed for acoustic measurements in a free sound field with an angle of incidence of 0 degrees. The static pressure equalization takes place via a capillary to the downstream preamplifier (rearvented). The measuring microphone capsule is suitable for class 1 sound level meters according to IEC 61672.

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