MM 1 — Condenser Measurement Microphone
INSTALLATION AND OPERATION
Connection
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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 .
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People can be injured and the microphone
can be damaged .
Operation
When setting up the MM 1, make sure that there
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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
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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
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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
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clamp for tripods with 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
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over and damage a microphone mounted
on it . Make sure the tripod stands stable .
Sound source
MM 1 on tripod
MAINTENANCE
Use a soft cloth moistened with water to clean the
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microphone shaft .
Make sure that no water enters the microphone .
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Do not use cleaning agents containing solvents .
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DISPOSAL
This symbol on the product, in the operating
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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 .
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Always dispose of used equipment in
accordance with applicable regulations .
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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 .
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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
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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
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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
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website . On our product detail page
https://www.beyerdynamic.com/mm-1.html
If you would like to learn more about beyerdynamic
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microphones for various applications, please visit
https://www.beyerdynamic.com/microphones-ma-
de-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
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