Bang & Olufsen BeoLab 7-4 Bedienungsanleitung

Guide

BeoLab 7-4

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 qualiﬁed 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

loudspeaker.

– Do not lift the loudspeaker by

gripping the acoustic lens.

– Prolonged listening at high

volume levels may cause hearing

damage!

WARNING: To reduce the risk of fire or

electric shock, do not expose this appliance

to rain or moisture. Do not expose this equip-

ment 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.

The exclamation point within an equilateral

triangle is intended to alert the user to the

presence of important operating and main-

tenance (servicing) instructions in the

literature accompanying the product.

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.

Acoustic Lens Technology –

manufactured under license from

Sausalito Audio Works.

Daily use

When you have ﬁnished setting

up the loudspeaker as described

on the following pages, connect

the entire system to the mains.

Loudspeaker protection

The loudspeaker 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

loudspeaker 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 dry, soft

cloth. If necessary, remove grease

stains or persistent dirt with a lint-

free, ﬁrmly 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 loud-

speaker 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 loudspeaker!

Switching on and off

When you switch on your Bang &

Olufsen system, the loudspeaker

switches on simultaneously, and

when you switch the system off

again the loudspeaker 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!

Set up the loudspeaker

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.

BeoLab 7-4 brackets: The loud-

speaker 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

loudspeaker will be fastened to one

of the ‘single-column’ Bang &

Olufsen stands or wall brackets.

Use the ‘type 2 bracket’ when the

loudspeaker will be fastened to one

of the ‘double-column’ Bang &

Olufsen stands.

Placement: The loudspeaker must

be placed centred below the

screen. Always place the loud-

speaker 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 loudspeaker 5–15 cm

(~ 2–6") below the screen, and no

more than 98 cm (~ 35") above the

floor.

‘Type 1 bracket’

‘Type 2 bracket’

Here is shown how to fasten

the loudspeaker with a ‘type 1

bracket’ to a Bang & Olufsen

‘single-column’ stand (or wall

bracket). Use the same procedure

if you wish to fasten the loud-

speaker to a Bang & Olufsen

‘double-column’ Stand – with a

‘type 2 bracket’.

aRemove the small cover (if any)

on the stand. Press the cover as

shown, and it will come loose.

bFasten the bracket to the stand or

wall bracket. Use the two longest

screws (M5 × 25 mm) – four

screws for a ‘type 2 bracket’.

cFasten the loudspeaker to the

bracket. Use the short screw

(M5 × 8 mm). However, do not

fully tighten it until you have made

the adjustments mentioned to the

right (d). Adjustments: Use the two screws

(d) to align the loudspeaker with

the stand or wall bracket. Then

position the loudspeaker so that the

side is vertical, and finally tighten

the screw (c).

Cable connections

The loudspeaker is primarily

intended to be used in a

surround sound setup with

BeoVision 7*. It may, however, be

used with other Bang & Olufsen

systems as well – for example in

a BeoVision 4 surround sound

setup.

If used in a setup not including

BeoVision 7, you will require a

mains cord and a Power Link

cable. These cables are available

as optional accessories from

your Bang & Olufsen retailer.

Mains connections

The loudspeaker has two sockets

concerning mains supply.

The socket marked ~is for mains

supply input (connection from the

wall outlet), and the other is a mains

supply output to BeoVision 7 (this

socket is not available on loud-

speakers intended for the US-

market).

Note: The mains cord from the wall

outlet must be fastened to the

cable clamp on the loudspeaker –

as shown on the next page.

POSITION switch

This switch has two settings: F

(Free-standing position) and W

(Wall position).

Which setting to use is explained in

‘Adapt the loudspeaker to your room’

(pp. 8–9).

POWER LINK socket

Use this socket to connect the loud-

speaker to one of the Power Link

sockets on the Bang & Olufsen

system – see the next page.

Mains connection

to BeoVision 7

POSITION switch Cable clamp

POWER LINK

socket

The socket panel is located on the rear of the loudspeaker.

*NOTE! BeoVision 7 and its

accessories are not available on all

markets.

Connection to other Bang &

Olufsen systems …

Use a Power Link cable of the

correct type to connect the loud-

speaker to a Power Link socket on

the Bang & Olufsen system.

For further information, refer to the

Guide enclosed with the Bang &

Olufsen system.

Power Link cable: Do not use a

cable of the older type, as this will

cause noise, and therefore not give

optimum sound quality! The new

type has a triangular mark on the

plug.

Connection to BeoVision 7 …

Connect the loudspeaker to one of

the Power Link sockets on the left

BeoVision 7 socket panel.

For further information about the

BeoVision 7 socket panels, refer to

the Guides enclosed with the

product.

The two mains cords and the

Power Link cable are enclosed with

BeoVision 7.

Cable clamp: For safety reasons,

the mains cord from the wall outlet

must be secured to the loudspeaker.

To do so, tug the cord behind the

clamp.

Power Link

Mk 3

BeoVision 7

BeoLab 7-4

Adapt the loudspeaker to your room

When a loudspeaker is placed

in a corner or close to a wall,

the bass level is boosted

compared to the bass level from

a loudspeaker placed in a more

free-standing position.

To remove this excessive bass

boost, use the POSITION switch

to ensure that the bass level

suits the placement of the

loudspeaker. The appropriate

switch setting depends on the

distance from the loudspeaker

to the walls and corners of the

room.

The POSITION switch

• F (Free-standing position)

Use this setting if the loudspeaker

is placed so that the front grill is

more than 50 cm (20") from the

rear wall, for example on one of

the stands.

• W (Wall position)

Use this setting if the loudspeaker

is placed so that the front grill is

less than 50 cm (20") from the rear

wall.

Always use this setting if the loud-

speaker is placed on any of the wall

brackets, but also when placed on

one of the stands – close to the

rear wall.

F W

The POSITION switch is located on

the loudspeaker socket panel.

How to measure: The distance is

measured as shown here – the loud-

speaker seen from above.

To get access to the approval

labels, remove the loudspeaker

front grill:

Push the front grill downwards until

stop (~ 10 cm/4"). The front grill

can now be removed.

Note: When attaching the front grill

again, first insert the centre peg into

the bottom end of the groove (a),

and move the front grill upwards.

Make sure that all six ‘attach-points’

engage fully with the corresponding

brackets on the loudspeaker (b), so

that the front grill is properly seated.

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