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8
SAFETY AND PRECAUTIONS
• CAUTION: before using this product read carefully the following safety instruc ons. Take a look of this manual en rely and preserve it for
future reference.
When using any electric product, basic precau ons should always be taken, including the following:
– To reduce the risk, close supervision is necessary when the product is used near children.
– Protect the apparatus from atmospheric agents and keep it away from water, rain and high humidity places.
– This product should be site away from heat sources such as radiators, lamps and any other device that generate heat.
– This product should be located so that its loca on or posi on does not interfere with its proper ven la on and hea ng dissipa on.
– Care should be taken so that objects and liquids do not go inside the product.
– This product may be capable of producing sound levels that could cause
permanent hearing loss. Exposure to extremely high noise levels may cause
permanent hearing loss. Individuals vary considerably in suscep bility to noise-
induced hearing loss, but nearly everyone will lose some hearing if exposed
to sufficiently intense noise for a period of time. The U.S. Government’s
Occupational Safety and Health Administration (OSHA) has specified the
permissible noise level exposures shown in the following chart. According to
OSHA, any exposure in excess of these permissible limits could result in some
hearing loss. To ensure against poten ally dangerous exposure to high sound
pressure levels, it is recommended that all persons exposed to equipment
capable of producing high sound pressure levels use hearing protectors while
the equipment is in opera on. Ear plugs or protectors in the ear canals or over
the ears must be worn when opera ng the equipment in order to prevent
permanent hearing loss if exposure is in excess of the limits set forth here. Keep
your's a en on that children and pets are more suscep ble to excessive noise
levels.
IN CASE OF FAULT
• In case of fault or maintenance this product should be inspected only by quali fi ed service personnel when:
– There is a fl aw either in the connec ons or in the supplied connec ng cables.
– Liquids have spilled inside the product.
– The product has fallen and been damaged.
– The product does not appear to operate normally or exhibits a marked change in performance.
– The product has been lost liquids or gases or the enclosure is damaged.
• Do not operate on the product, it has no user-serviceable parts inside, refer servicing to an authorized maintenance centre.
TROUBLESHOOTING
No Sound • Is the loudspeaker cable connected?
• Is the SPEAKON cable connector correctly inserted? turn it clockwise un l it clicks.
• Are you sure your power cable works properly? check it using a cable tester or replacing with a newone.
As soon as the music gets loud,
the high frequency shuts down • The HF driver protec on trips to protect the HF driver from excessive signal: turn down the volume and
mid/high tone controls.
Distorted Sound • Input signal level is too high. Turn down your level controls.
Di ff erent channel level • Check if are using a balanced cable for one channel and an unbalanced one for the other, as this would
cause a considerable di
ff erence in channel levels.
• Be sure that your loudspeaker system is fully connected and both loudspeakers have the same
impedance.
Noise / Hum • Enable GND LIFT bu on on rear panel, if the problem persist press all GND LIFT bu ons for all system's
ampli
fi ers.
• Whenever possible, preferably use only balanced cables. Unbalanced lines may also be used but may result
in noise over long cable runs.
• Some mes it helps to plug all audio equipment into the same AC circuit so they share a common ground.
CE CONFORMITY
• Proel products comply with direc ve 2004/108/EC (EMC), as stated in EN 55103-1 and EN 55103-2 standards and with direc ve 2006/95/CE
(LVD), as stated in EN 60065 standard.
• Under the EM disturbance, the ra o of signal-noise will be changed above 10dB.
PACKAGING, SHIPPING AND COMPLAINT
• This unit package has been submi ed to ISTA 1A integrity tests. We suggest you control the unit condi ons immediately a er unpacking it.
• If any damage is found, immediately advise the dealer. Keep all unit packaging parts to allow inspec on.
• Proel is not responsible for any damage that occurs during shipment.
• Products are sold “delivered ex warehouse” and shipment is at charge and risk of the buyer.
• Possible damages to unit should be immediately no
fi ed to forwarder. Each complaint for package tampered with should be done within eight
days from product receipt.
Dura on Per Day
In Hours Sound Level dBA
Slow Response Typical
Example
8 90 Duo in small club
6 92
4 95 Subway Train
3 97
2 100 Very loud classical music
1.5 102
1 105 Tra ffi c noise
0.5 110
0.25 or less 115 Loudest parts at a rock concert