MM 1

beyerdynamic Article no: 449350

Price:
$389

Description

The MM 1 is a measurement microphone which has been designed specifically for measuring sound reinforcement and PA-systems. It is designed to work with spectrum analysers for measuring frequency response and sound pressure levels of loud speaker systems

The MM 1 is the ideal microphone for the measurement of audio signals in the research, development, for reverberation testings and other applications. The narrow tubular construction ensures that the microphone has negligible influence on the sound field so that an increase in sound pressure is avoided with high frequencies. A natural reproduction is achieved due to the linear frequency response.

FEATURES:
Linear frequency response in the diffuse field / under 90°
Omnidirectional polar pattern
Calibrated open circuit voltage
Narrow tubular construction

Specifications:

Transducer type . . . . . . . . . . . . . . . . Condenser (back electret)
Operating principle. . . . . . . . . . . . . . Pressure
Frequency response . . . . . . . . . . . . . 20 - 20,000 Hz (50 - 16,000 Hz ± 1.5 dB)
Polar pattern . . . . . . . . . . . . . . . . . . Omnidirectional, diffuse field calibrated
Open circuit voltage at 1 kHz. . . . . . . 15 mV/Pa (= -36.5 dBV) ± 1 dB
Nominal impedance . . . . . . . . . . . . . 330 Ω
Nominal load impedance . . . . . . . . . ≥ 2.2 kΩ
Max. SPL at f = 1 kHz, k = 1%, RL = 2.2 kΩ. . . . . . . . . . . . . . . . . . . . 128 dB
SPL S/N ratio rel. to 1 Pa . . . . . . . . . . . . . > 57 dB
A-weighted equivalent SPL. . . . . . . . approx. 28 dB(A)
Power supply . . . . . . . . . . . . . . . . . . 12 - 48 V phantom supply
Current consumption . . . . . . . . . . . . approx. 3.4 mA
Output . . . . . . . . . . . . . . . . . . . . . . . transformer balanced
Connection . . . . . . . . . . . . . . . . . . . 3-pin XLR male
Dimensions
Length . . . . . . . . . . . . . . . . . . . . . . . 133 mm
Shaft diameter . . . . . . . . . . . . . . . . . 19/9 mm
Head diameter . . . . . . . . . . . . . . . . . 9 mm
Weight (w/out cable) . . . . . . . . . . . . 88 g

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