beyerdynamic MM 1 Condenser Measurement Microphone User Manual

Beyerdynamic MM 1 Condenser Measurement Microphone

Product Information

Specifications

• Transducer type: Condenser (back electret)
• Operating principle: Pressure
• Frequency response: 20 – 20,000 Hz

Product Usage Instructions

Safety Instructions

• Before using the MM 1 Condenser Measurement Microphone, please adhere to the following safety instructions.
• Read the user manual and safety instructions carefully.
• Do not use the product if it is damaged.
• Lay cables in a safe manner to prevent tripping or damage.
• Repairs should only be done by authorized specialists.
• Avoid exposure to rain, snow, liquids, or moisture.
• Use the microphone under specified conditions.
• Only use approved accessories and spare parts.
• Reduce volume to prevent hearing damage and feedback.

Application

• The MM 1 is ideal for acoustic measurement in various environments. It is designed for calibrating studio rooms, PA, and ELA systems.
• It can be used with a spectrum analyzer to check sound pressure levels of loudspeakers and for frequency response measurements.
• The slim housing with a protruding microphone capsule minimizes influence on the sound field, especially at high frequencies.
• The microphone’s transmission pattern ensures a linear frequency response with diffuse sound input, simplifying the calibration of multiple loudspeakers in a studio setting.
• Additionally, the MM 1 is valuable for investigating sound signals in research, development, and industry.

Features

• Ideal for acoustic measurement in different environments.
• 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.

FAQ

Q: Can the MM 1 be used for outdoor measurements?

A: It is not recommended to expose the MM 1 to rain, snow, liquids, or moisture. It is best suited for indoor use in controlled environments.

Q: How should I store the MM 1 when not in use?

A: Store the MM 1 in the provided storage case to protect it from dust and potential damage.

• You have chosen the MM 1 measurement microphone from Beyerdynamic.
• Thank you for your confidence in our M series.
• In this user manual, you will find important information on the use of your product.
• Please take sufficient time to read them.
• ENJOY THE SOUND!
• Your Beyerdynamic Microphone Team

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 authorized specialists. Never open the microphone yourself. For devices that have been opened by the customer, the warranty will be invalidated.
• 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 under the purpose stated by the manufacturer.

BOX CONTENTS

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

OPTIONAL ACCESSORY

• WS 10 AZ Windshield,
• Colour: charcoal-grey. Order # 403.008

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 measurements 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 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 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

• 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
• Load impedance. ≥ 2.2 kΩ
• Max. SPL at f = 1 kHz, k = 1%, RL = 2.2 kΩ. 122 dB SPL
• Signal-to-noise ratio rel. to 1 Pa. > 57 dB
• A-weighted equivalent SPL. approx. 26 dB(A)
• Power supply. 12 – 48 V phantom power
• Current consumption. approx. 1.9 mA
• Output.   electronically balanced
• Connection. 3-pin XLR, male

Dimensions:

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

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 measurements 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.
• Caution: 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.beyerdyna-mic.com/formulare/konferenztechnik/mm1-register
• The MM 1 is supplied with the MA-CL 21 microphone clamp for tripods with a 3/8″ thread. For tripods with a 5/8″ thread, you can unscrew the threaded insert.
• Caution: 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.

DISPOSAL

• This symbol on the product, in the operating instructions, or on the packaging means that electrical and electronic devices must be disposed of separately from household waste at the end of their life cycle.
• Always dispose of used equipment under applicable regulations.
• Dealers for electronic equipment are generally obliged to take back waste electrical/electronic equipment free of charge. This obligation also applies to sales via remote communication.
• For further information, please contact the local authorities or the dealer from whom the product was purchased.

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 authorized 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 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

WARRANTY

• Beyerdynamic offers a limited warranty of 2 years on the purchased Beyerdynamic product. The exact warranty conditions can be found on our website at https://www.beyerdynamic.com/service/warranty

CONFORMITY

• Information on the conformity of the product can be found on our website at https://www.beyerdynamic.com/downloads
• beyerdynamic GmbH & Co. KG
• Theresienstraße 8
• 74072 Heilbronn / Germany
• Phone +49 7131 617-300
• E-Mail info@beyerdynamic.de www.beyerdynamic.com
• For further distributors worldwide, please go to www.beyerdynamic.com
• Non-contractual illustrations. Subject to change without notice.
• Weitere Vertriebspartner weltweit finden Sie im Internet unter www.beyerdynamic.com
• Abbildungen nicht vertragsbindend. Änderungen vorbehalten.
• EN-DE-FR-ES-KO-JA-ZH 1 | MM 2 | (03.24)

References

• Kopfhörer & Mikrofone direkt vom Hersteller | beyerdynamic
• Headphones & Microphones |beyerdynamic
• Headphones & Microphones |beyerdynamic
• Headphones & Microphones |beyerdynamic
• Downloads
• MM 1: Condenser measurement microphone (omnidirectional) | beyerdynamic
• Warranty
• Kopfhörer & Mikrofone direkt vom Hersteller | beyerdynamic
• Kopfhörer & Mikrofone direkt vom Hersteller | beyerdynamic
• MM 1: Kondensatormessmikrofon (Kugel) | beyerdynamic

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