Beyerdynamic MM 1 - Condenser Measurement Microphone Manual

BOX CONTENTS

• 1 x MM 1 microphone
• 1 x MA-CL 21 microphone clamp
• Storage case
• Individual measurement chart
• "M Series Guide" info sheet
• Technical specifications on the M series

OPTIONAL ACCESSORY

FEATURES

• 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

APPLICATION

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.

TECHNICAL SPECIFICATIONS

FREQUENCY RESPONSE & POLAR PATTERN

The displayed frequency response curve and polar pattern correspond to a typical production sample for this microphone. Each microphone comes with an individual 0° frequency response. The individual compensation curves for 0° and 90° free-field measurement can be requested via the following link: www.beyerdynamic.com/mm1-register

INSTALLATION AND OPERATION

Connection

• The MM 1 is equipped with a 3-pin XLR connector. You can connect it to any microphone input with phantom power (12 - 48 V) with a suitable microphone cable. Activate phantom power for this purpose.
• 
  Carelessly laid cables are a trip hazard. People can be injured and the microphone can be damaged.

Operation

• When setting up the MM 1, make sure that there are no large objects close to the microphone, which could influence the sound field and place the microphone clamp as far down as possible.
• Note on the calibration of loudspeakers in studio rooms:
  When measuring loudspeakers and other sound sources with a high direct sound level, you should set up the MM 1 so that the microphone axis is at 90° to the sound source (see illustration below). This ensures a linear recording with all frequencies. With direct sound input from the front, a slight pressure build-up becomes evident at frequencies above 10 kHz. This leads to a boost at high frequencies (refer to the frequency response curve at 0°).
  With lower frequencies, there is no pressure build-up and the polar pattern is exactly omnidirectional.
• Depending on the alignment of the microphone to the sound source, you should use the appropriate calibration file. The individual compensation curves of the 0° and 90° free-field measurement of your MM 1 can be requested from beyerdynamic free of charge, stating your serial number: https://www.beyerdynamic.com/formulare/konferenztechnik/mm1-register
• The MM 1 is supplied with the MA-CL 21 microphone clamp for tripods with 3/8" thread. For tripods with a 5/8" thread, you can unscrew the threaded insert.
  
• 
  A tripod with an insecure stand can fall over and damage a microphone mounted on it. Make sure the tripod stands stable.

MAINTENANCE

• Use a soft cloth moistened with water to clean the microphone shaft.
• Make sure that no water enters the microphone.
• Do not use cleaning agents containing solvents.

TROUBLESHOOTING AND SERVICE

• Should you have technical problems when using the microphone or should you need more instructions, please visit our FAQ website at https://support.beyerdynamic.com
• In case of service, please contact authorised service personnel. Never open the microphone yourself, as this could invalidate all warranty claims. Please visit our website https://www.beyerdynamic.com for service and replacement parts.

FURTHER INFORMATION

• If you need further information, please visit our MM 1 on tripod website. On our product detail page https://www.beyerdynamic.com/mm-1.html
• If you would like to learn more about beyerdynamic microphones for various applications, please visit https://www.beyerdynamic.com/microphones-made-in-germany

SAFETY INSTRUCTIONS

• Read this user manual and the safety instructions carefully before using the product.
• Do not use the product if it is damaged.
• Lay cables in such a way that no one can trip over the cables and that the device cannot be damaged.
• Repairs may only be carried out by authorised specialists. Never open the microphone yourself. For devices that have been opened by the customer the warranty will invalidate.
• Do not expose the product to rain, snow, liquids or moisture.
• Use the device only under the conditions specified in the technical specifications.
• Only use accessories and spare parts approved by the manufacturer.
• Reduce the volume on the connected playback devices to prevent hearing damage, acoustic feedback and damage to the loudspeakers.

Intended use

Do not use the product in any way other than as described in this product manual. beyerdynamic accepts no liability for improper use of the product or its accessories.

Liability

beyerdynamic GmbH & Co. KG accepts no liability for damage to the product or injury to persons due to careless, improper or incorrect use, that is not in accordance with the purpose stated by the manufacturer.

Documents / Resources

References

• Headphones & Microphones |beyerdynamic
• MM 1: Condenser measurement microphone (omnidirectional) | beyerdynamic
• Microphones Made In Germany | beyerdynamic

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Beyerdynamic MM 1 - Condenser Measurement Microphone Manual