SCHOEPS V4 U - Handbuch (Seite 13)

SCHOEPS GmbH · Spitalstr. 20 · D-76227 Karlsruhe (Durlach) · Tel: +49 721 943 20-0 · Fax: +49 721 943 2050
www.schoeps.de · [email protected]
Care and Maintenance
13
English
control cannot be turned down, the next logi-
cal step is to plug in a balanced resistive ”pad”
(attenuator) such as the SCHOEPS MDZ 10 or
MDZ 20 at the preamp input. If the sound
quality improves,
leave the pad in place.
With respect to RF
interference it is
always better to pad
the preamp input
than the microphone;
this is part of why the
V4 U has no such pad.
Low-frequency dis-
turbances may not be
directly audible as
such, but infrasonic
noise can still cause
overload in some stage of the signal chain.
To avoid this, the V4 U has a non-switchable
active filter that suppresses any noise below
40 Hz.
If there is a risk of motion being transmitted
through floorboards, etc., the use of an elastic
suspension is recommended.
Any other overload for which there seems
to be no sensible explanation may actually be
a symptom of incorrect or inadequate micro-
phone powering. Powering systems and their
requirements are discussed near the beginning
of this User Guide on page 11.
Care and Maintenance
Use only a soft, slightly moist cloth to clean
the exterior of the V4 U; never use solvents or
cleaning fluids, which can attack the surface
finish of the microphone.
Prevent any kind of liquid from getting into
the microphone, since that can lead to dam-
age and loss of functionality.
Because of the acoustically open design of
the capsule head, among other reasons, avoid
using the V4 U in dirty or dusty environments,
which can affect the functioning of the micro-
phone. Especially in combination with humidity,
this can lead to popping and crackling noises
(often described as “frying sounds”).
After use, particularly if the microphone will
be sitting unused for some length of time, it
should be stored in a closed container such as
the supplied wooden case.
If the microphone should require cleaning in
the area around the swivel joint, we recom-
mend using a soft brush or a miniature vacuum
cleaner. Do not use compressed air or propellant
of any kind, since that could force dirt into the
mechanism.
We definitely advise against opening the
microphone. The swivel joint is designed to
work maintenance-free for many years, but if
problems should somehow arise, please send
the microphone to the factory for adjustment.
What to do if …
the microphone is noisy (clicks and pops) in high
humidity?
If the microphone is brought in from the cold
outdoors to a warm (and especially humid)
environment, snapping or clicking noises can
result from the condensation of moisture.
In this event the microphone should be given
30 to 60 minutes to warm up, and will then
generally perform flawlessly.
If this treatment does not eliminate the noise,
it is possible that dirt has gotten inside the
transducer (capsule) itself – in which case the
microphone must be sent back to the factory
for cleaning. We strongly advise customers
not to open the microphone or attempt to
clean it themselves. Doing so would also
invalidate all warranties.
resistive attenuator
MDZ 10