collapse expand iconDescription

The Beyerdynamic MM 1 has been developed for the calibration of studio rooms, PA and ELA systems. In conjunction with a spectrum analyzer, 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.

Includes MA-CL 21 Microphone clamp.
beyerdynamic MM 1 Condenser Measurement Microphone (Omnidirectional)
beyerdynamic MM 1 Condenser Measurement Microphone (Omnidirectional)
beyerdynamic MM 1 Condenser Measurement Microphone (Omnidirectional)

collapse expand iconFeatures

  • 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

collapse expand iconSpecs

  • 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
  • Dimensions:
  • Length: 139 mm
  • Shaft diameter: 19mm
  • Head diameter: 9mm
  • Weight: 73g

collapse expand iconWarranty

7. Warranty
a. In the event of any defect in the item of sale, the choice of remedy shall lie with us. Any expenses connected with the remedying of defects arising from the fact that the item of sale has been sent or taken to a place other than the place of performance shall be borne or refunded by the Customer. For claims to compensation on account of a defect, Section 6 of these Terms and Conditions shall apply.
b. The period of limitation for claims for defects shall be 2 years. This shall not apply in the case of fraudulent misrepresentation, willful intent or the cases specified in Arts. 478 and 479 BGB. This shall not affect the limitation period for recovering from the supplier as provided for under Arts. 478 and 479 BGB. The start of the limitation period shall be as specified in the law.
c. Warranty shall be excluded if the Customer has processed or resold the item of sale after he has discovered, or ought to have discovered, a defect unless he is able to prove that the processing or resale was necessary in order to prevent greater loss or damage.
d. Natural wear and tear and damage through improper treatment, handling or storage is excluded from warranty.
e. The return of products is allowed only after prior approval by beyerdynamic.