Applications; Setting Up And Mounting - Beyerdynamic MM 1 Mode D'emploi

Thank you for selecting the MM 1 measurement microphone.
Please take some time to read carefully through this product infor-
mation before setting up the equipment.

Applications

The MM 1 is used for measuring sound reinforcement and PA-
systems. It is ideal for spectrum analysers allowing frequency
response and sound pressure levels of speakers to be monitored. Due
to its small casing it can be mounted unobtrusively.
The slim line casing and remote mounting of the microphone cap-
sule means the influence on the sound field is very low and an
increase in sound pressure is avoided with high frequencies. An exact
linear frequency response is achieved in diffuse sound receptions.

Setting up and Mounting

Using a standard XLR cable, the MM 1 can be connected to
microphone inputs supplying 12 - 48 volts phantom power.
When mounting the MM 1, make sure that there are not any large
objects close to the microphone, as they could influence the sound
field.
With frequencies above 10 kHz a slight pressure build-up occurs
when the sound is received directly from the front. This causes a
maximum increase of 3 dB at 20 kHz. With lower frequencies the
polar pattern is exactly omnidirectional.
MM 1 stand-mounted
sound source
Therefore, when measuring loud-
speakers and other sound sources
with a high content of direct sound
the MM 1 has to be placed in a 90°
position to the sound source. This
allows you to receive an absolutely
linear reproduction in frequencies
above 10 kHz.