Focal CHORUS V - SUBWOOFERS SW 800 V & SW 700 V, User Manual

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INSTALLATION
Connections
“High level” inputs
When using a standard two-channels
stereo amplifier, the subwoofer must
be connected through the “high
level inputs”. The two stereophonic
loudspeakers will then have to be
connected directly to the amplifier
(fig. A) or the high level outputs of
the subwoofer (fig. B) . It is imperative
to respect the connectors’ polarity of
both the loudspeaker and amplifier.
The positive terminal
“+” (red) must
be connected to the corresponding
amplifier’s terminal (red) and the
negative terminal
“-“ (black) to the
negative terminal of the amplifier.
Low level inputs on RCA
When using a two-channels
amplifier with pre-out line outputs,
the subwoofer must be connected
through RCA stereo inputs
“line
inputs Right/Left” (fig. C) .
LFE input
When using an audio/video, multi-
channel amplifier, the single LFE input
should be connected to the mono
“Subwoofer” output of the audio/
video amplifier (fig. D) .
Positioning
Contrary to conventional, hi-fi
loudspeakers, which have to be
placed at a reasonable distance
from the walls and the listening area
corners, we recommend placement
of the Profile subwoofer in a corner
of the listening area
(fig. E, F) . If
the subwoofer is placed against only
one wall or too far from the walls,
the very large wavelength of the bass
delivered by the subwoofer will excite
the resonance of the listening room
in an unpredictable way. Frequency
response linearity will then be
compromised and sound rendition
will be affected (lack of depth,
“boomy sound”, poor bass, difficult
or impossible coupling with the other
loudspeakers). If you put the sub in
a corner, the resonant frequencies
of the room will be more linear and
predictable. In such a configuration,
you will not only benefit from an
optimum perception of the bass
frequency range but the bass level
will also increase by 6dB
(fig. D) .
If a particular disposition of the room
does not allow placement of the
subwoofer in a corner, we recommend
that you try different configurations
until you find the best possible sound.
Generally, the subwoofer should
be placed along the front wall of a
listening room. As bass frequency
waves are omni-directional, the
sound dispersion will not be affected
if a piece of furniture or an object is
placed between the subwoofer and
the listening area. It is then possible to
hide the subwoofer behind a piece of
furniture as long as the bass frequency
dispersion is not affected.
Magnetic disturbance
The subwoofer generates a magnetic
field that may interfere with other
sensitive household appliances. It
is strongly advised to not place the
subwoofer closer than 50cm (20”)
to your TV screen
(fig. H) . Frame
geometry as well as colours can be
severely distorted by a magnetic field
if the loudspeaker is placed to close
to the cathode ray tube. Generally,
all sensitive media (audio tapes,
video tapes, magnetic data storage,
projector
and CRTS overhead-
projector) should not be placed close
to any non-shielded loudspeaker.
Accessories for SW 800 V
The Chorus SW 800 V include four
decoupling spikes (cones). These
spikes ensure a better stability,
particularly if the floor is not perfectly
flat and smooth. The spikes are
adjustable in height with the supplied
key
(fig. K) .
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