Classis RM 30 | RM 31
11
english
4.
Microphone Positioning
When notebooks are being used, it is
also necessary to consider the micro-
phones. Notebooks should always be
positioned to the side of the micro-
phones. Otherwise, when opened, the
LCD screen would obstruct the
sound. This also applies to free-
standing monitors. Sufficient
distance is the key to the directional
effect and good feedback suppression.
Moreover, notebooks often have fans
at the back. The noise of the fan
would then be picked up by the
microphone.
Two Classis RM 31 Q should not be
directly placed back to back, because
the loudspeaker of the second built-
in or desktop microphone unit will be
picked up by the microphone and
cause feedback. The minimum
distance should be 15 to 20 cm.
In order to avoid feedback, the mini-
mum distance between external loud-
speakers and the Classis RM 30 or
Classis RM 31 should be 5 m.
For more information about application examples, please refer to the
beyerdynamic “Revoluto Design Guide”.
5.
Maintenance
Use a soft, damp cloth for cleaning the microphone. If necessary,
you can use a gentle cleansing agent (such as washing-up liquid).
Make sure not to allow any water to enter the transducer
element and never use any solvent cleansers.
6.
Service
Servicing must be carried out by qualified service personnel only.
Dismantling the microphone yourself will invalidate the guarantee.
15 cm
15 - 20 cm
5 m
