Limited Warranty; Owner's Manual - Bowers & Wilkins XT4 Manual Del Usaurio

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Limited Warranty

Dear customer,
Welcome to B&W.
This product has been designed and
manufactured to the highest quality
standards. However, if something does go
wrong with this product, B&W
Loudspeakers and its national distributors
warrant free of charge labour (exclusion
may apply) and replacement parts in any
country served by an official B&W
distributor.
This limited warranty is valid for a period of
five years from the date of purchase or two
years for electronics including amplified
loudspeakers.
Terms and Conditions
1 The warranty is limited to the repair of
the equipment. Neither transportation,
nor any other costs, nor any risk for
removal, transportation and installation
of products is covered by this warranty.
2 This warranty is only valid for the
original owner. It is not transferable.
3 This warranty will not be applicable in
cases other than defects in materials
and/or workmanship at the time of
purchase and will not be applicable:
a. for damages caused by incorrect
installation, connection or packing,
b. for damages caused by any use other
than correct use described in the user
manual, negligence, modifications, or
use of parts that are not made or
authorised by B&W,
c. for damages caused by faulty or
unsuitable ancillary equipment,
d. for damages caused by accidents,
lightning, water, fire heat, war, public
disturbances or any other cause
beyond the reasonable control of B&W
and its appointed distributors,
e. for products whose serial number has
been altered, deleted, removed or
made illegible,
f. if repairs or modifications have been
executed by an unauthorised person.
4 This guarantee complements any
national/regional law obligations of
dealers or national distributors and
does not affect your statutory rights as
a customer.
How to claim repairs under
warranty
Should service be required, please follow
the following procedure:
1 If the equipment is being used in the
country of purchase, you should
contact the B&W authorised dealer from
whom the equipment was purchased.
2 If the equipment is being used outside
the country of purchase, you should
contact B&W national distributor in the
country of residence who will advise
2
where the equipment can be serviced.
You can call B&W in the UK or visit our
web site to get the contact details of
your local distributor.
To validate your warranty, you will need to
produce this warranty booklet completed
and stamped by your dealer on the date of
purchase. Alternatively, you will need the
original sales invoice or other proof of
ownership and date of purchase.

Owner's manual

Introduction
Thank you for choosing B&W.
Please read this manual fully before
unpacking and installing the product. It will
help you to optimise its performance.
B&W maintains a network of dedicated
distributors in over 60 countries who will be
able to help you should you have any
problems your dealer cannot resolve.
Unpacking
Check in the carton for:
• 2 foam plugs
• 4 spike feet with lock nuts
• 4 stabilisers
• 4 M6 cap head screws
• 4 self-adhesive clear rubber feet
• 3mm Allen key
• 5mm Allen key
Positioning
As an initial guide:
2-channel audio (figure 1)
• Position the speakers so they subtend
an angle of approximately 60º at the
centre of the listening area
• Keep the speaker baffles at least 0.5m
clear of walls. Clearance from the rear
wall improves the impression of depth
in the sound image.
Multi-channel audio front left and
right (figure 2)
• The speakers may be placed closer
together than for 2-channel audio,
because the surround channels tend to
widen the image. The angle subtended
at the centre of the listening area may
be reduced to 40º.
Home theatre front left and right
(figure 3)
• Position the speakers approximately
0.5m (20 in) from the sides of the
screen, to keep the sound image in
scale with the visual image on screen.
Stray magnetic fields
The speaker drive units create stray
magnetic fields that extend beyond the
boundaries of the cabinet. We recommend
you keep magnetically sensitive articles
(CRT television and computer screens,
computer discs, audio and video tapes,
swipe cards and the like) at least 0.5m from
the speaker. LCD and plasma screens are
not affected by magnetic fields.
Connections
(figure 4)
All connections should be made with the
equipment switched off.
Feed the cable through the half-round
aperture at the bottom rear of the cabinet,
up through the cable channel in the cabinet
extrusion to the terminal panel.
Connect the positive terminal on the
speaker (upper terminal marked + and
coloured red) to the positive output terminal
of the amplifier and negative (lower terminal
marked - and coloured black) to negative.
Incorrect connection can result in poor
imaging and loss of bass.
Ask your dealer for advice when choosing
cable. Keep the total impedance below the
maximum recommended in the
specification and use a low inductance
cable to avoid attenuation of the highest
frequencies.
Fine Tuning
Before fine tuning, double check that all the
connections in the installation are correct
and secure.
Moving the speakers further from the walls
will reduce the general level of bass. Space
behind the speakers also helps to create an
impression of depth. Conversely, moving
the speakers closer to the walls will
increase the level of bass.
To reduce the bass level without moving
the speakers further from the wall, fit one or
both foam plugs in the port tube (figure 5).
To access the ports, remove the grille by
gently pulling it away from the cabinet.
Uneven bass is usually due to resonance
modes in the room and it is worth
experimenting with both speaker and
listener position. Try mounting the speakers
along a different wall. Even moving large
pieces of furniture can have an effect.
If the central image is poor, try moving the
speakers closer together or toeing them in
so they point at or just in front of the
listeners. (figure 6)
If the sound is too harsh, increase the
amount of soft furnishing in the room (for
example use heavier curtains), or reduce it
if the sound is dull and lifeless.
Test for flutter echoes by clapping your
hands and listening for rapid repetitions.
They can be reduced by the use of irregular
shaped surfaces such as bookshelves and
large pieces of furniture.
Ensure the speakers stand firmly on the
floor. If they stand on a carpet, fit the spike
feet and stabilisers supplied after you have
optimised the positioning. The spikes are
designed to pierce through carpeting to the
floor surface. (figure 7)
First fit the stabilisers to the base of the
speaker. Locate the split pin of each
stabiliser in the clearance hole in the base
and secure using the M6 cap head screws
and 5mm Allen key provided.
Screw the lock nuts fully onto the spikes
and screw the spikes fully into the threaded
inserts in the stabilisers.
If the cabinet rocks, screw down the
appropriate spikes from above using the