Bowers Wilkins 705S2 Stand Mount Speaker User Manual
- June 6, 2024
- Bowers Wilkins
Table of Contents
Bowers Wilkins 705S2 Stand Mount Speaker
Positioning
Speaker Positioning
Adjustment of speaker position following initial installation will probably
further improve the sound quality and is usually worthwhile.
In either stereo or home theatre installations, try to ensure that the
immediate surroundings of each speaker are similar in acoustic character. For
example, if one speaker is adjacent to bare walls while the other is adjacent
to soft furnishings and curtains, both the overall sound quality and the
stereo image are likely to be compromised.
Conventional Stereo Systems
To begin with, the speakers should be positioned between 1.5m and 3m apart at
two corners of an equilateral triangle completed by the listening area at the
third corner. The speakers should be approximately 0.5m away from the back
wall, and at least 0.5m away from any side walls (above).
Connections
All connections should be made with the audio equipment switched off.
There are 2 linked pairs of terminals on the back of the speaker. For
conventional connection (above left), the terminal links should remain in
place (as delivered) and just one pair of terminals connected to the
amplifier. For bi-wire connections or bi-amplification (above right), the
terminal links should be removed and each pair of terminals connected to the
amplifier or amplifiers independently. Bi-wiring can improve the resolution of
low-level detail.
Fine Tuning
Before fine tuning, make sure that all the connections in the installation are correct and secure.
Moving the speakers further from the walls will generally reduce the volume of bass. Space behind the speakers will also help to create an aural impression of depth. Conversely, moving the speakers closer to the walls will increase the volume of bass. If you want to reduce the volume of bass without moving the speakers further from the wall, fit the foam plugs or, for less severe bass reduction, the foam rings in the port tubes (above).
If the bass seems uneven with frequency this will most probably be a
consequence of the acoustic properties of your listening room. Even small
changes in the position of the speakers
or listening position can have a significant effect on sonic performance,
especially at low frequencies. Try moving your listening position or locating
your speakers along a different wall if possible.
Channels
Home Theatre 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 2-channel audio,
because the surround channels tend to widen the image. Positioning the
speakers within approximately 0.5m of the sides of the 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. If you
would prefer to place your speaker against the back wall and this location
results in over emphasised bass, see the Fine Tuning section of this manual
for information on using the foam plugs.
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, OLED and
plasma screens are not affected by magnetic fields.
Ensure that the positive terminals on the speaker (marked + and coloured red)
are connected to the positive output terminal on the amplifier and the
negative terminals on the speaker (marked – and coloured black) are connected
to the negative output terminal on the amplifier. Incorrect connection can
result in poor imaging and loss of bass.
Ask your dealer for advice when selecting speaker cable.
If no alternatives exist, you can adjust your loudspeakers’ low-frequency performance using the supplied foam bungs. The bungs are a two-piece part, allowing for a degree of fine-tuning using either the outer, larger-diameter piece in isolation or the two parts together. Using solely the outer, larger- diameter foam bung will deliver less bass attenuation than the complete bung assembly.
If using floor stands to support the speakers, ensure that they rest firmly on the floor. Use carpet piercing spikes if appropriate and adjust them to take up any unevenness. If you are using our FS-700 S2 stands, we recommend mass- loading them to deliver the best combination of stability and performance. We recommend filling each stand to its maximum available volume using an appropriate material such as kiln-dried sand.
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>