G B
1
I N T R O D U C T I O N
Thank you f or choosing B&W.
Please read this manual fully before
unpacking and installing the product.
It will help you to op timise its perf o rm a n c e .
B&W maintains a network of dedicate d
distributors in over 60 countries who will be
able to help you should you have any pro b l e m s
your dealer cannot re s o l v e .
U N PACKING
( f i g u re 1)
Fold the carton flaps right back and
i n v e rt the car ton and co ntents.
Lift the carton clear of the contents.
Remove the inner pa cking from
the pro d u c t .
We suggest you retain the packing
for future u se.
Check in the carton for:
2 foam plugs.
P O S I T I O N I N G
( f i g u re 2a)
Mount the speakers on firm dedicated stands
that place the tweeters approximately at ear
level. Bookshelf mounting is possible but allows
less opport unity for o ptimising the sound. The
stand or shelf used can affect the sound quality
of the speaker. Ask your dealer for advice on
the best type for your needs.
As an initi al guide:
Position the speaker s and the centre
of the list ening area approximately at
the corners of an equilateral triangle.
Keep the speakers at least 1.5m apart
to maintain left-right separation.
Keep the speaker baffles at least
0.5m clear of walls.
Stray magne tic fields
The speaker drive units create stra y magnetic
fields that extend beyon d the bound aries of the
cabinet. We recommend you keep magnetically
sensitive articles (television and computer
s c reens, computer discs, audio and video tapes,
swipe cards and the like) at least 0.5m fro m
the speaker.
C O N N E C T I O N S
( f i g u re 3)
All connect ions should be made with the
equipment switched off .
T h e re are 2 p airs of ter minals at the back of
the speaker which permit bi-wiring if desired.
On deliver y, the separat e pairs are connected
together with high-quality links for use with
a single 2- core cable. For single cable
connection, leave the links in pla ce and use
either pair of terminals on the speaker.
E n s u re the posi tive termina l on the s peaker
(marked + a nd coloured red) is co nnected to the
positive output terminal of the amplifier and
negative (marked - and coloured black) to
negative. Incorrect connection can result in poor
imaging and loss of bass.
To bi-wire, re move the li nks by loose ning the
t e rminal caps and use a separate 2-core cable
f rom the amplifier to each pair of terminals.
This can improve the resolution of low-level
detail. Observe the correct polarity as before .
When bi-wiring, incorrect connection can also
impair the frequency re s p o n s e .
Ask your dealer for advice when choosing
cable. Keep the total impedance bel ow the
maximum reco mmended in t he specific ation and
use a low inductance cable to avoid attenuation
of the hig hest fre q u e n c i e s .
FINE TUNING
B e f o re fine tuning, double check that all the
connections in the installation are correct and
s e c u re .
Moving the speakers further from the walls will
reduce the general level of bass. Space behind
the speakers also helps to create an impre s s i o n
of depth. Conversely, moving the speakers closer
to the walls will increase the level of bass.
If you want to reduce the bass level
without moving the speakers further from
the wall, fit the foam bungs in the port tubes
( f i g u re 4).
If the bass is uneven with frequency it is usually
due to the excitation of resonance modes in t he
room. Even small changes in the position of the
speakers or the listeners can have a pro f o u n d
e ffect on how these resonances affect the sound.
Try mounting the speakers along a d iff e rent wall .
Even moving large piece s of furn i t u re can have
an eff e c t .
If the centr al image i s poor, try m oving the
speakers closer together or toeing them in so
they point at or just in front of the listeners.
( f i g u re 2b)
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. Reduce them
by the use of irregular shaped surfaces such as
bookshelves and large pieces of furn i t u re .
E n s u re the speak er stands a re firm on the floor. If
you have a carpet, use carpet-piercing spikes
and adjust them to tak e up any un evenness in
the floor.
A F T E R C A R E
The cabinet surface usu ally only r e q u i res dusting.
If you wish to use an aerosol cleaner, remove
the grille first by gently pulling it away from the
cabinet. Spr ay onto the cleaning cl oth, not
d i rectly onto the cabinet. The grille fabric may
be cleaned with a normal clothes brush whilst
the grille is detached from the cabinet.
Avoid touching the drive units, especially the
t w e e t e r, as damage may re s u l t .