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VPA600MB VELLEMAN
4
4. General Guidelines
• This device is a professional audio amplifier for amplifying audio signals. This product is allowed to be operated
with an alternating current of 230VAC / 50Hz or 115VAC / 60Hz and was designed for indoor use only.
• This device is designed for mobile use and permanent transportation.
• Important remark: the operation of an amplification system in public or industrial areas is subject to specific safety
instructions. Contact the proper authorities for more information.
• Do not shake the device. Avoid brute force when installing or operating the device.
• Choose an installation spot where the device will not be exposed to extreme heat, moisture or dust. Don’t leave
cables lying around. They only endanger your own safety and that of others.
• Only use the device in an ambient temperature of -5°C to +45°C. Keep away from direct insulation and heaters.
• The relative humidity must not exceed 50%.
• Always disconnect the device from the mains during thunderstorms as over-voltage could destroy the device.
• Familiarize yourself with the functions of the device before actually using it. Do not allow operation by unqualified
people. Any damage that may occur will most probably be due to unprofessional use of the device.
• Never use solvents or aggressive detergents in order to clean the device. Use a soft and damp cloth.
• Please use the original packaging if the device has to be transported.
• Removing the serial bar code from the device will void the warranty.
• All modifications of the device are forbidden for safety reasons.
• Operate the device in the way described in this manual and only use the device for its intended purpose. All other
uses may lead to short circuits, burns, electroshocks, hearing loss, etc. The warranty automatically becomes void
in case of improper use.
• The figures in this manual describe the VPA600MB. Other models and their features are comparable with the
VPA600MB.
5. Legal Provisions
• Operating an amplification system can produce extremely high noise levels that may cause permanent hearing
loss. The legal instructions for using an amplification system vary from country to country. The user is responsible
for respecting the legal provisions applicable in his country.
• Always monitor the sound pressure level when operating an amplification system in discos, concerts etc. Never
exceed the permissible noise level as specified by the law.
• Hearing damage caused by high noise levels can be regarded as a physical injury and may lead to criminal
prosecution.
• Please note that the organizer is responsible for respecting maximum noise levels.
6. Information on Hearing Loss
• More and more younger people suffer from hearing loss of 25dB or more, mainly caused by listening to loud
music. Every person operating amplification systems should know to what sound pressure levels he is exposed
to. In a discotheque, average levels of 75dB to 105dB are reached. At a rock concert, the sound pressure levels
can rise from 95dB up to 115dB. Individual peaks can exceed the 130dB pain level. Such levels are typical for
e.g. motor chain saws.
An Overview on the Different Noise Levels
10dB – Heartbeat
25dB – Whisper
40dB – Average home
50dB – Light traffic
60dB – Normal conversation
70dB – Vacuum cleaner