18
3
OPERATING DETERMINATIONS
The speaker systems of the VFM series are high-performance active speaker systems in light-weight and
rugged plastic cabinets. They can be flexibly used for permanent installations and professional live
applications. The speakers are designed as 2-way systems with connectors for microphones, line sources
and for coupling with other active speakers. Models with built-in audio player allow for streaming music
wirelessly from smartphones or tablets via Bluetooth. They also offer slots for USB storage devices and
SD(HC) memory cards. All speaker systems are equipped with a mounting flange for stand installation.
Power Supply
This product is allowed to be operated with an
alternating current of 230 V, 50 Hz and was designed
for indoor use only. The occupation of the connection
cables is as follows:
Cable
Pin
International
Brown
Live
L
Blue
Neutral
N
Yellow/Green
Earth
The earth has to be connected! If the device will be
directly connected with the local power supply network,
a disconnection switch with a minimum opening of 3
mm at every pole has to be included in the permanent
electrical installation. The device must only be
connected with an electric installation carried out in
compliance with the IEC standards. The electric
installation must be equipped with a Residual Current
Device (RCD) with a maximum fault current of 30 mA.
Public and Industrial Use
Operating an amplification system in public or industrial
areas, a series of safety instructions have to be
followed that this manual can only give in part. The
operator must therefore inform himself on the current
safety instructions and consider them.
Maximum Power
The maximum power of the speaker system must never
be exceeded. When operating the speaker system,
please make sure that the loudspeakers always sound
well. When distortions can be heard, either the amplifier
or the loudspeaker is overloaded. Overloads can
quickly lead to amplifier or speaker damage. In order to
avoid damage, please reduce the volume immediately
when distortions can be heard. When speaker systems
are destroyed by overload, the guarantee becomes
void.
Admissible Temperatures
The ambient temperature must always be between
-5° C and +45° C. Keep away from direct insulation
(particularly in cars) and heaters.
Operation
Operate the speaker system only after having
familiarized with its functions. Do not permit operation
by persons not qualified for operating the speaker
system. Most damages are the result of unprofessional
operation.
Transport
This product is not designed for rigorous road use.
Move it carefully and without force. Please use the
original packaging if the device is to be transported.
Cleaning
Never use solvents or aggressive detergents in order to
clean the device! Rather use a soft and damp cloth.
Installation
This speaker system must only be installed at a solid,
plane, anti-slip, vibration-free, oscillation-free and fire-
resistant location. Before installing the system, make
sure that the installation area can hold a minimum point
load of 5 times the system's load (e.g. weight 20 kg -
point load 100 kg). The speaker system must never be
installed higher than 100 cm without secondary
attachment. The speakers can be installed on top of a
subwoofer (satellite system). The carrying capacity of
the distance tube must never be exceeded. The
satellite system must always provide enough stability.
The subwoofer's base surface must always be
sufficiently dimensioned in relation to the top speaker in
order to prevent tilting over.
Modifications and Guarantee
Please consider that unauthorized modifications on the
speaker system are forbidden due to safety reasons! If
this speaker system will be operated in any way
different to the one described in this manual, the
product may suffer damages and the guarantee
becomes void. Furthermore, any other operation may
lead to dangers like crashes, hearing loss etc.
Approval
Bluetooth operation in the 2.4 GHz range and is
license-free and generally approved in EU and EFTA
countries.