Beyerdynamic MM 1 Condenser Measurement Mic

About: Beyerdynamic MM 1 Condenser Measurement Mic

The MM 1 has been developed for the calibration of studio rooms, PA and ELA systems. In conjunction with a spectrum analyser, the sound pressure levels of loudspeakers can be checked in addition to frequency response measurements. Due to the slim housing with the protruding microphone capsule, the influence on the sound field is very low, so that a pressure build-up at high frequencies is mostly avoided.

The transmission pattern is selected so that an exactly linear frequency response is achieved with diffuse sound input. This makes the calibration of several loudspeakers in the studio particularly easy and fast.

The MM 1 also provides valuable services when investigating sound signals in research, development and industry.

• 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

The MM 1 measurement microphone can be used anywhere that requires precise results. Featuring an omnidirectional polar pattern, this microphone is ideal for measuring studio spaces, PA systems and sound reinforcement systems. When used in combination with a spectrum analyser, it can monitor not only frequency response measurements, but also the sound pressure level of speakers. The MM 1 also provides a valuable service when it comes to measuring audio signals for research, development, and industry.

Strictly Accurate

The MM 1 boasts impressively high measurement precision – both live and in the studio. We manufacture these microphones within an extremely narrow tolerance with a deviation of +/- 1.5 dB between 50 Hz and 16 kHz. This is made possible by our specialists checking the frequency response of each individual microphone by hand.

It's What's Inside that Counts

A high-quality back electret condenser capsule serves as pressure receiver in the MM 1. The microphone is diffuse field calibrated and demonstrates a linear frequency response at 90°. This makes it easy to measure studio spaces, for example, without the need for too much preparation.

An Unconventional Alternative

The MM 1 is anything but a one trick pony. It delivers good results as an unconventional alternative for instrument recordings – perfect for spontaneously recording song ideas.

Quality Made in Germany

Handmade at the company headquarters, the MM 1 stands for beyerdynamic’s high manufacturing quality. Measurement-relevant components such as the mounting board are manufactured in-house and individually calibrated.

​​​​​​​Form Follows Function

The MM 1’s shape was designed to deliver exact measurement results. Thanks to the narrow solid metal housing with recessed microphone capsule, the construction has very little impact on the sound field. This means that an increase in sound pressure at high frequencies can be largely avoided. The lightweight, compact microphone is also easy to position. This classic microphone now comes safely stored in a sturdy hard case.

Individual Calibration

As with all microphones in the M series, the MM 1 is measured at the end of the production process. In addition, upon request we will provide the individual calibration data for 0° and 90° free-field measurement via E-Mail.

Durable Materials

Our microphones are designed for daily use in professional conditions, which is why only durable materials are used in their construction. If the microphone nevertheless gets damaged, our service policy means that we can replace almost every part.

Specifications

• ​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) - 5 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
• Dimensions:
  • Length - 5.47 in (139 mm)
  • Shaft diameter - 0.75 in (19 mm)
  • Head diameter - 0.35 in (9 mm)
• Weight - 0.16 lb (73 g)

What's in the Box

• MM 1 Microphone
• MA-CL 21 Microphone clamp
• Microphone Case