MM 1

MM 1 – Measurement microphoneFeatures:·Linear frequency response·Omnidirectional polar pattern·Calibrated open circuit voltage·Narrow tubular constructionTechnical Specifications:·Transducer type: Condenser (back electret)·Operating principle: Pressure·Polar pattern: Omnidirectional, diffuse field calibrated·Open circuit voltage at 1 kHz (0dB = 1V/Pa): 15 mV/Pa (≡ -36.5 dBV) ± 1 dB·Nominal impedance: 330 Ω·Load impedance: ≥ 2.2 kΩ·Connector: 3-pin XLR·Length: 133 mm·Shaft diameter: 19 mm·Head diameter: 9 mm·Weight without cable: 88 g·Frequency response: 20 – 20,000 Hz (50 – 16,000 Hz ± 1.5 dB)·Max. SPL at 1 kHz: 128 dB·S/N ratio rel. to 1 Pa: > 57 dB·A-weighted equivalent SPL: approx. 28 dB(A)·Power supply: 12 – 48 V phantom power·Current consumption: approx. 3.4 mA