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Installation
Connections
Low-level inputs on RCA
When using a two-channel, stereo
amplifier with preamplifier line
outputs, the Electra SW 1000 must
be connected through RCA stereo
inputs "line inputs Right/Left"
A)
. This configuration is better
than that of the high-level inputs
and will deliver a cleaner sound.
LFE input
When using an audio/video,
multi-channel amplifier, the single
LFE input of the Electra SW 1000
should be connected to the mono
"Subwoofer" output of the audio/
video amplifier
(fig. B)
.
Digital input/output (Digital)
Several Electra SW 1000 Be can
be digitally connected to greatly
increase sound pressure levels.
The
first
"master"
subwoofer
receives the analog signal from
the source unit and then drives
in the digital domain as many
additional "slave" subwoofers as
deemed necessary. This permits
all the settings and corrections
on the master subwoofer to be
systematically
applied
slaves
(whose
control
are partially deactivated). Only
gain and phase are accessible.
The digital connection is serial
from
one
subwoofer
next
(fig. C)
. Volume control of
slave subwoofer is synchronized
with master subwoofer.
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
(fig.
placement of the Electra SW
1000 in a corner of the listening
(fig. E, F)
area
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",
difficult or impossible coupling
with the other loudspeakers). If
you put the Electra SW 1000
in
a
corner,
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
If a particular disposition of the
to
the
room does not allow placement
menus
of the subwoofer in a corner, we
recommend that you try different
configurations until you find the
best possible sound. Generally,
to
the
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 Electra SW
1000 behind a piece of furniture
as long as the bass frequency
dispersion is not affected.
Magnetic disturbance
The Electra SW 1000 generates a
magnetic field that may interfere
with other sensitive household
appliances. It is strongly advised
to not place the Electra SW 1000
closer than 50cm (20") to your TV
screen. Frame geometry as well as
. If the subwoofer is
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
should not be placed close to
any non-shielded loudspeaker.
poor
bass,
the
resonant
(fig. D)
.
CRTS
overhead-projector)
15
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