Applications; Installation And Connection - Beyerdynamic Classis GM 30 Series Product Information

PRODUCT INFORMATION Classis GM 303 - 306 /
Classis 313 - 315
Thank you for selecting one of the GM 303 - 306 / GM 313 - 315
gooseneck microphones of
beyerdynamic. Please take some time to read carefully through
this information before using the product.
Gooseneck - Caution
In order to avoid overstretching and premature wear and tear
never bend the gooseneck more than 90°. Bending and turning
of the gooseneck at the same time cause premature wear and
tear or damage of the gooseneck and should be avoided.
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Applications

This gooseneck microphone features a cardioid polar pattern,
high gain before feedback and excellent intelligibility of
speech. It is suitable for use on lecterns, sound reinforcement
the Classis series from
applications, conferencing, high quality talkback and paging
systems.
All microphones feature the innovative Scudio™ technology,
making the microphones absolutely insensitive to wireless
communication devices such as mobile phones.

Installation and Connection

For example an XLR flange socket is installed into the tabletop
and connected to the amplifier input (pin 1: ground, pin 2: NF+,
pin 3: NF-). As an alternative there are installation and shock-
mounted holders available (refer to "Optional Accessories").
The microphone is connected and ready for operation.
The microphones with pre-amplifier need a phantom supply of
8 - 52 V for operation.
Classis GM 313 - 315 versions with illuminated ring
In order to avoid interference, we recommend that the audio
and the supply for the illuminated ring are individually screened.
Connection: pin 4/LED-: cathode, pin 5/LED+: anode.
Classis GM 313 SP - 315 SP versions with illuminated ring
and programmable button
With the SP variants you can select via the programmable
button between the operating modes ON/OFF, Push-To-Talk
and Push-To-Mute. The microphone button can also be
disabled (Button Mode - Disabled (ON)). The frequency