Bowers & Wilkins 805 Diamond, Owner'S Manual

Page: 5 / 41

5
ENGLISH
3. Connecting
The location of room boundaries fundamentally affects
the sound of a speaker. As more surfaces come
into close proximity, the speaker’s bass and lower
midrange will become more prominent. At the same
time, the speaker’s stereo image is likely to become
less focussed and portray less depth. The aim when
positioning speakers is to find a happy medium
between domestic constraints, tonal balance and
stereo image quality. Re-visiting and adjusting the
position of your speakers following initial installation
will probably further improve the sound quality and is
usually worthwhile.
The 805 Diamond has an optimum vertical listening
window, the centre of which is defined by the height
of the tweeter when the speaker is placed on a stand.
This should be roughly in line with the ear height of
seated listeners. The FS-805 floor stand is designed to
hold the speaker at the appropriate height.
Stereo Audio Systems
To begin with, the speakers should be positioned
between 1.5m and 3m apart and a similar distance
away from the listening position. The speakers should
be at least 0.5m away from the back wall, and at
least 0.5m away from any side walls. It may help the
stereo image clarity if the speakers are each angled
inward towards the listening position, especially if they
are relatively far apart. The diagram above illustrates
speaker positioning for stereo audio systems.
Multi-channel Audio-visual Systems
If the speakers are to be used for the front channels in
a home theatre system they should be placed closer
together than for stereo audio because the surround
channels tend to widen the stereo image. Positioning
the speakers within approximately 0.5m of the sides of
the video screen will also help keep the sound image
in scale with the visual image. As with conventional
stereo positioning, the speakers should ideally be at
least 0.5m away from any side walls. The diagram
above illustrates speaker positioning for multi-channel
audio-visual systems.
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. Plasma, LCD and
OLED screens are not affected by magnetic fields.
All connections should be made with the audio
equipment switched off.
The 805 Diamond speaker terminals accept a variety
of cable terminations: 4mm banana plugs, 6mm and
8mm (1/4 in and 5/16 in) spades, or bare wires up to
4mm (5/32 in) diameter.
Important Safety Notice
In certain countries, notably those in Europe,
the use of 4mm banana plugs is considered
a potential safety hazard, because they may be
inserted into the holes of unshuttered mains supply
sockets. In order to comply with European CENELEC
safety regulations, the 4mm holes in the ends of the
terminals are blocked by plastic pins. If you are using
the products in any country where these conditions
apply, you should ensure that any banana plugs cannot
be used in an unsafe manner by children or other
uninformed persons.
Ask your dealer for advice when selecting speaker
cable. Keep its total impedance below the maximum
recommended in the speaker specification and use
a low inductance cable to avoid attenuation of high
frequencies.
>0.5m
>0.5m
1.5m - 3m
0.5m - 1m 0.5m - 1m
805 manual for printer.indb 5 15/05/2012 12:18