Beyerdynamic MM 1 Condenser Measurement Microphone (Omnidirectional)

Description

The MM 1 is a flexible condenser measurement microphone for acoustic measurement of studio rooms, PA and ELA systems, and for monitoring sound pressure levels. The measurement microphone has also made a name for itself in research, development and industry. Equipped with a high-quality back electret condenser capsule, the diffuse-field equalized microphone has a linear frequency response at 90°.

The MM 1 is manufactured by hand within extremely tight tolerances at the company’s site in Heilbronn, Germany.

• Ideal for acoustic measurement in different environments
• Linear frequency response at 90° (diffuse field calibrated)
• Low tolerance ± 1.5 dB in the range between 50 Hz to 16,000 Hz
• Individual calibration data for 0° and 90° free-field measurement available upon request
• Simple calibration of several loudspeakers in the (home) studio
• Slim housing with protruding microphone capsule for minimum influence on the acoustic environment
• Handcrafted in Germany =+= Transducer type
Condenser (back electret)
Operating principle
Pressure
Frequency response
20 – 20,000 Hz (50 – 16,000 Hz ± 1.5 dB), diffuse field calibrated
Polar pattern
Omnidirectional,
Sensitivity (0 dB = 1 V/Pa)
15 mV/Pa (= -36.5 dBV) ± 1 dB
Nominal impedance
160 Ω
Nominal load impedance
≥ 2.2 kΩ
Max. SPL at f = 1 kHz, k = 1%, RL = 2.2 kΩ
122 dBSPL
Signal-to-noise ratio rel. to 1 Pa
> 57 dB
A-weighted equivalent SPL
approx. 26 dB(A)
Power supply
12 – 48 V phantom supply
Current consumption
approx. 1.9 mA
Output
electronically balanced
Connection
3-pin XLR, male
Length
139 mm
Shaft diameter
19 mm
Head diameter
9 mm
Weight
73 g