Bowers & Wilkins 600: Limited Warranty

6191 683-684 manual Inside 30/4/07 2:19 pm Page 3

i

ndependently. Bi-wiring can improve the resolution of

c

ompounds and suspension materials of the drive

low-level detail. Figures 3a and 3b illustrate

units will take some time to recover their correct

c

onventional and bi-wire connection.

m

echanical properties. The drive unit suspensions will

also loosen up during the first hours of use. The time

E

nsure that positive terminals on the speaker (marked

t

aken for the speaker to achieve its intended

+ and coloured red) are connected to the positive

p

erformance will vary depending on previous storage

o

utput terminal on the amplifier and that negative

conditions and how it is used. As a guide, allow up to

t

erminals on the speaker (marked – and coloured

a

week for the temperature effects to stabilise and

black) are connected to the negative output terminal

1

5 hours of average use for the mechanical parts to

o

n the amplifier. Incorrect connection can result in

attain their intended design characteristics.

poor imaging and loss of bass.

However, longer run-in periods (as long as a month)

Ask your dealer for advice when selecting speaker

h

ave been reported and there is evidence to suggest

cable. Keep its total impedance below the maximum

that this has little to do with the speaker changing and

recommended in the speaker specification and use a

more to do with the listener getting used to the new

low inductance cable to avoid attenuation of high

sound. This is especially so with highly re

vealing

f

requencies.

s

peakers such as these where there may be a

Fine Tuning

significant increase in the amount of detail compared

with what the listener has previously been used to; the

Before fine tuning, make sure that all the connections

sound may at first appear too “up front” and perhaps

in the installation are correct and secure.

a little hard. After an extended period of time the

Moving the speakers further from the walls will

sound will seem to mellow, but without losing clarity

generally reduce the volume of bass. Space behind

and detail.

the speakers will also help to create an aural

impression of depth. Conversely, moving the speakers

Aftercare

closer to the walls will increase the volume of bass. If

The cabinet surfaces usually only require dusting. If

you want to reduce the volume of bass without

you wish to use an aerosol or other cleaner, remove

moving the speakers further from the wall, fit the foam

the grille first by gently pulling it away from the

plugs in the port tubes as illustrated in Figure 4.

cabinet. Spray aerosols onto the cleaning cloth, not

directly onto the product. Test a small area first, as

If the bass seems uneven with frequency this will most

some cleaning products may damage some of the

probably be due to resonance modes in the listening

surfaces. Avoid products that are abrasive, or contain

room. Even small changes in the position of the

acid, alkali or anti-bacterial agents. Do not use

speakers or the listening position can have a profound

cleaning agents on the drive units. The grille fabric

effect on how these resonances affect the sound. Try

may be cleaned with a normal clothes brush whilst the

moving the listening position or locating the speakers

grille is detached from the cabinet. Avoid touching the

along a different wall. The presence and position of

drive units, especially the tweeter, as damage may

large pieces of furniture can also influence resonance

result.

modes.

If the central image lacks focus, try moving the

speakers closer together or angling them inward so

that they point at a location just in fr

ont of the listening

Limited Warranty

position. Figure 2b illustrates speakers angled inwards.

This product has been designed and manufactured to

If the sound is too bright, increasing the amount of

the highest quality standards. However, if something

soft furnishing in the room (heavier curtains for

does go wrong with this product, B&W Group Ltd. and

example) may help balance the sound. Conversely,

its national distributors warrant free of charge labour

reducing the amount of soft furnishing may help

(exclusion may apply) and replacement parts in any

brighten a dull sound.

country served by an official B&W distributor.

Some rooms suffer from “flutter echoes” – echoes that

This limited warranty is valid for a period of five years

“bounce” between parallel room boundaries. Flutter

from the date of purchase or two years for electronics

echoes can colour the sound of the speakers in the

including amplified loudspeakers.

room. Test for flutter echoes by standing in the middle

of the room and clapping your hands. Flutter echoes

Terms and Conditions

can be reduced by placing irregular shaped items or

1

The warranty is limited to the repair of the

non-reflective surfaces, bookshelves, rugs or pictures

equipment. Neither transportation, nor any other

for example, on one of the offending walls or floor.

costs, nor any risk for removal, transportation and

Ensure that the speaker stands firmly on the floor. Use

installation of products is covered by this warranty.

carpet pier

cing spikes if appr

opriate and adjust them

2

This warranty is only valid for the original owner

. It

to take up any unevenness.

is not transferable.

Running-in Period

3

This warranty will not be applicable in cases other

The performance of the speaker will change subtly

than defects in materials and/or workmanship at

during the initial listening period. If the speaker has

the time of pur

chase and will not be applicable:

been stored in a cold environment, the damping

3