Beyerdynamic MM 1 Measurement Microphone Standard
Condition: New
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 Ohms. Load impedance: ≥ 2.2 k Ohms. 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.
Beyerdynamic MM 1 Measurement Microphone Standard