Bang & Olufsen BeoLab 7-4 User Manual
BeoLab 7-4
Guide
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: To reduce the risk of
electric shock, do not remove
cover (or back).
No User-serviceable parts inside.
Refer servicing to qualified service
personnel.
WARNING: To reduce the risk of fire or
electric shock, do not expose this appliance
to rain or moisture. Do not expose this equipment to dripping or splashing and ensure
that no objects filled with liquids, such as
vases, are placed on the equipment.
To completely disconnect this equipment
from the AC Mains, disconnect the power
supply cord plug from the AC receptacle.
The lightning flash with arrowhead symbol
within an equilateral triangle, is intended
to alert the user to the presence of un-
insulated “dangerous voltage” within the
product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric
shock to persons.
Cautions!
– Make sure that the loudspeaker
is placed and connected in
accordance with the instructions
in this Guide. To prevent injury,
use Bang & Olufsen approved
stands and wall brackets only!
– The loudspeaker can only be
switched off completely by
disconnecting it from the wall
socket.
– Do not attempt to open the loud-
speaker. Leave such operations
to qualifi ed service personnel!
– The loudspeaker is designed for
indoor use in dry, domestic
environments only, and for use
within a temperature range of
10–40º C (50–105º F).
– Do not place any items on the
loud speaker.
– Do not lift the loud speaker by
gripping the acoustic lens.
– Prolonged listening at high
volume levels may cause hearing
damage!
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions in the
literature accompanying the product.
Acoustic Lens Technology –
manufactured under license from
Sausalito Audio Works.
Daily use
3
When you have fi nished setting
up the loud speaker as described
on the following pages, connect
the entire system to the mains.
Loudspeaker protection
The loud speaker is equipped with a
thermal protection system which
prevents damage from overheating.
If an error occurs – or the speaker
units become overheated – the
system automatically switches the
loud speaker to standby.
To restore the sound:
> Disconnect the loudspeaker from
the mains.
> Allow the system time to reset or
cool down (approximately 3–5
minutes).
> Reconnect the loudspeaker to the
mains.
Should the problem persist, contact
your Bang & Olufsen retailer.
Cleaning the loudspeaker
Clean dusty surfaces using a dr y, soft
cloth. If necessary, remove grease
stains or persistent dirt with a lintfree, fi rmly wrung cloth, dipped in
a solution of water containing only
a few drops of mild detergent, such
as washing-up liquid.
Never use a vacuum cleaner to clean
the exposed speaker membrane in
the acoustic lens. However, the loudspeaker front grill may be cleaned
with a vacuum cleaner with a soft
brush nozzle, and set to the lowest
level.
Never use alcohol or other solvents to
clean any parts of the loud speaker!
Switching on and off
When you switch on your Bang &
Olufsen system, the loud speaker
switches on simul taneously, and
when you switch the system off
again the loud speaker also switches
to standby.
!
Caution: Do not touch the exposed
speaker membrane in the acoustic
lens!
Handle the loudspeaker front grill
with great care. Dents and scratches
are not covered by the guarantee!
4
We recommend that you follow
this procedure:
– Disconnect your Bang & Olufsen
system from the mains.
– Mount the loudspeaker to the
Bang & Olufsen stand or wall
bracket as explained on the next
page.
– Connect the loudspeaker as
explained in ‘Cable connections’
(pp. 6–7).
– Set the POSITION switch to the
correct setting. This is explained
in ‘Adapt the loudspeaker to
your room’ (pp. 8–9).
– Connect the entire system to the
mains again.
Set up the loudspeaker
‘Type 1 bracket’
‘Type 2 bracket’
BeoLab 7-4 brackets: The loudspeaker must be fastened to one of
the brackets shown here, and on a
suitable Bang & Olufsen stand or
wall bracket.
Use the ‘type 1 bracket’ when the
loud speaker will be fastened to one
of the ‘single-column’ Bang &
Olufsen stands or wall brackets.
Use the ‘type 2 bracket’ when the
loud speaker will be fastened to one
of the ‘double-column’ Bang &
Olufsen stands.
Placement: The loud speaker must
be placed centred below the
screen. Always place the loudspeaker in an upright position!
If the loudspeaker is mounted on the
wall, for example in a BeoVision 4
setup, we recommend that you
place the loud speaker 5–15 cm
(~ 2–6") below the screen, and no
more than 98 cm (~ 35") above the
floor.
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