Quadral SUBWOOFER - Manual (Page 3)

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ENGLISH
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Setting up
Besides the unit’s actual settings, a subwoofer’s bass reproduction essentially depends on
where the unit is positioned in the listening room. Proximity to walls or even placement in a
corner makes the bass sound come over louder – but also less well defined and accurate –
than if in a more free-standing position. Since the acoustic characteristics differ from room to
room, we recommend finding the optimum compromise between bass volume and precision
by simple trial and error. It won’t matter if you set up the subwoofer nearer to the left hand sat-
ellite than the right hand one – or vice versa – since the low bass sounds are not localizable.
If your subwoofer directs its sound downwards, you must fit the supplied loudspeaker foot,
which can be designed as „spikes“ as well (depending on the model), before you start to use
the system.
Operating modes
Units with a POWER switch and stand-by function:
If the mains POWER switch is in OFF position, the unit is turned off completely.
If the mains POWER switch is in ON position, the switch for stand-by operates as follows:
ON: The unit is permanently switched on.
AUTO: The unit switches on automatically, if a music signal is received and auto-
matically switches to stand-by mode after approximately 15 minutes, if no
music signal is received.
OFF: The functions are switched off.
• When operating your subwoofer, on no account ever lay it with the panel containing the switches,
controls and input/output sockets facing down as this could cause the unit to overheat; please ensure
a minimum distance of 5cm around the apparatus for sufficent ventilation. The woofer, the bass
reflex opening and possible existing ventilation openings should never be covered with items such as
newspapers, table-cloths, curtains, etc.
• On no account ever insert a hand, arm or any object into a bassreflex opening as this could cause
injury or material damage. At particular risk in this respect are children and pets.
• Allow no-one but appropriately qualified service engineers to carry out technical maintenance and
repair work on your active loudspeaker. This will be necessary in the event of any form of damage,
i.e. damaged mains cables and plugs, or when some object has fallen onto the speaker cabinet or
if the unit itself has fallen over or been dropped, or if it has been penetrated by any type of liquid.
Never open up the device yourself since any physical contact whatsoever with the mains voltage
(230V/115V) can have fatal consequences.
• Never use active loudspeakers as seating or climb up on them (instead of using a ladder)!
• Your loudspeaker units have been designed for long years of home use and should not therefore be
used for professional purposes.
• For the purposes of mounting and placement of these products, please only use furniture and other
devices that are obtainable from the manufacturer and marketed for or together with the product in
question. Take extreme care when moving any table devices or shelves upon which the products are
placed as the units could otherwise tip or fall over and cause damage or injury.
• Avoid placing your loudspeakers anywhere with high levels of humidity or dampness. Permanent
relative humidity or exposure to direct sunlight (UV radiation) can cause warping of wooden speaker
cabinets or lead to their premature aging and thus affect the unit's performance. Besides, do not
position the subwoofer directly adjacent to sources of heat, e.g. radiators. Moreover, do not place
naked flame sources, such as lighted candles on the speaker cabinet.
• Our fitting accessories should only be used to install products that we have specifically designed for
wall mounting. Take special care to ensure that all components are securely screwed into place! We
also recommend using additional safeguards, for example chains, etc. to ensure secure and safe
mounting.
• Loudspeakers in operation for long periods at excessively high volume levels are not only a source
of disturbance for neighbours but can also have serious health-related consequences for the user as
well!
• Loudspeakers without magnetic shielding can cause discoloration or distortion of the TV picture. To
avoid this, place non-shielded loudspeakers at least 50 cm clear of the TV set. Please avoid deposit-
ing, for example, credit cards, diskettes, audio or video cassettes or any other form of magnetic data
carriers on the speaker cabinet as this could otherwise lead to loss of data stored on such objects.
Likewise, do not place and operate magnetic tape devices in the direct vicinity of such loudspeakers.
• Please do not throw the packaging away as you might possibly need it for transportation of the loud-
speaker system at a later date. Keep the polythene bags out of the reach of children since
they can cause asphyxiation if used for any other than their intended purpose.
POWER
ON OFF