Focal ELECTRA SW 1000 Manuel D'utilisation page 20

Parameters
Boost Mode
Increase of the bass level by
0dB to +6dB at 30Hz, 40Hz or
50Hz. To be used as preference
or need on
playback for very dynamic bass.
Subsonic Mode
Low-pass filter, adjustable from
0 (OFF) to 45Hz by 10Hz steps,
at a slope of 48dB/octave. This
filter can be very practical when
the subwoofer is placed in a small
room and-or at an angle in the
room, or if the walls of the room
are thin or not very rigid. The
room may generate an excessive
sound level in the lower bass or
even cause saturation. Vibration
and unpleasant resonances can
then occur. The subsonic filter
can progressively eliminate this
annoyance and maintain a clean
and strong bass performance.
Adjust the filter value until the
resonances disappear
listening room.
Note 1 : this filter setting can be
used as well during extended
listening periods at high levels. It
inhibits excessive cone movement
of the diaphragm (bottoming out)
and delays the appearance of
distortion.
Note 2 : this
used simultaneously
mode "Boost" activated. The
increase in energy (+ 3dB,
equal to a doubling of power) is
compensated by the subsonic filter,
which suppresses energy in the
upper bass.
20
Phase Mode
Adjustment of the phase from 0°
to 180°, with very precise steps
of 10°. This adjustment allows to
multi-channel precisely lock in the phase of the
subwoofer with that of the other
loudspeakers at the crossover
frequency. Navigate through the
phase values with the directional
arrows until the bass of the
subwoofer perfectly meets that of
the loudspeakers.
Note 1 : this adjustment can be
done by ear. However, measuring
instruments make for easy work,
and are recommended: discuss
this with your reseller.
Note 2 : it is possible, whilst
listening, to compare the position
0° and 180° (inverted phase)
directly from the menu, without
fine-tuning by steps. This easy
phase
simplify final adjustment.
in the
filter can be
with the
inversion solution can
Gain Mode
It is possible to assign a different
gain (from -6dB to
according to either a music or
cinema program that would benefit
from a higher level. This level can
be kept in memory on the buttons
Select Hi-fi and Cinema.
Presets buttons (memory)
After exiting a menu, you can
assign your adjustments to one
of the three available memory
settings. Press, and hold one of the
three "Preset" buttons 3 for two
seconds. When the display flashes,
the setting has been memorized.
Note 1 : the preset
correspond to the everyday use
of either a stereo or home theatre
system. Naturally, according to the
use or nature of the system, these
three buttons can be assigned to
settings for either stereo or home
theatre.
Note 2 : the "User" function is
an additional memory setting that
can be assigned to another use of
the subwoofer, e.g.: multi-channel
SACD or DVD-Audio, which may
require different settings.
+6dB)
buttons