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Clear Sound Ltd. LA V3 Operation Manual
Clear Sound Ltd.
Sofia 1700, Bulgaria
Prof. Hristo Vakarelski Str. 4
VAT BG201105102
.bg
office@clearsound.bg
Never block the ventilation openings, leave a lot of space in front of and at the back of
the amp rack. Inspect and clean regularly!
Install and use in accordance with the manufacturer’s instructions! Use only spare parts
/ accessories specified by the manufacturer.
CAUTION: Risk of electric shock! Do not open the amplifier’s covers!
Always replace the electrical fuses with the same type, size and rating (in Amperes /
Volts). Never make the burned fuse “stronger” by replacing the wire with such with bigger cross-
section.
This means you should have spare fuses on the location.
Do not install near any heat sources such as radiators, ovens, stoves, fire, candles or
other apparatus (including other amplifiers) that produce much heat! Avoid direct sunshine, it
is a heat source.
The crew must have basic skills of fire-fighting. You must have fire extinguishers in
good working order at the appropriate places. One extinguisher per each amp rack is a good
choice at normal venues.
All services must be done by trained personnel. Servicing is needed when the
apparatus or part of it has been damaged in any way, for example damaged power supply cord
or plug; when liquid has been spilled or objects have fallen into the apparatus; the apparatus
has been exposed to rain or moisture; it does not operate normally or has been dropped or
stressed. This means you must have at least one spare amp on the location.
Protect the power cord and all the cables – power, speaker, signal, data, etc. from being
walked on or pinched with a cart, carriage, trolley etc. Use cable protectors where needed.
Avoid bending and flexing the cable, especially in the points where they exit from the apparatus
and power connector.
Verify the correct mains voltage and frequency and then connect each device.
Verify that your mains have enough power for your equipment.
Be sure that the power connectors and circuit breakers are accessible to the operator
for supervising and servicing.
The electric devices must be powered exclusively from ground connected mains
sockets / connectors in electrical mains compliant to the IEC365 or similar rules. This is a
fundamental safety requirement so it’s necessary to be checked. In a case of any doubt, you
should ask for an accurate check from a qualified person.
The power plug / connector without proper grounding must not be used. It is widely
spread to remove the ground connection from the power plug in the case of hum and other
