Philips FW-P78 - Manual (Page 9)

3139 116 19452 (ENG)
9
Setting up the Subwoofer
TV
CENTER
SPEAKER
SURROUND
RIGHT
SURROUND
LEFT
FRONT
LEFT FRONT
RIGHT
MINI HIFI
SYSTEM SUB-
WOOFER
• Install the subwoofer wherever you
like because with the bass sound
range reproduced from the
subwoofer (below 150Hz), human
hearing cannot detect the direction
and position in which the sound is
being produced.
• Also, since the feeling of stereo is lost
with bass frequencies, a single
subwoofer is enough for reproducing
the bass of stereo channels. However,
you may install more than one
subwoofer if your system has more
than one subwoofer out jack.
• To obtain a better bass reproduction,
we recommend that you install the
subwoofer on a solid floor where
resonance is unlikely to occur.
• Always place the subwoofer
vertically, keeping a few centimeters
from away the wall.
• Do not place an object on the
subwoofer or sit on it.
• If the subwoofer is placed in the
center of a room, the bass could be
extremely weakened. This is due to
the influence of the standing wave of
the room. If this happened, move
the subwoofer away from the center
of a room or eliminate the cause of
the standing wave, by installing a
bookshelf on the wall, etc.
Important:
Before you
operate the
subwoofer,
complete the
preparation
procedures.
Switch on your
mini system and
select the sound
source.
AC Power Supply
After all other connections have been
made, connect the AC power cord to
the system and to the wall outlet.
Switching the subwoofer
ON
• Rotate SUBWOOFER VOLUME
clockwise until there is a click.
™ The LED indicator lights up in
green.
Switching the subwoofer
to standby mode
• Rotate SUBWOOFER VOLUME
counter-clockwise until there is a
click.
™ The LED indicator light turns red.
Volume Adjustment
You can adjust the subwoofer to suit
the sound level of your front speakers.
Reinforcing the bass sound gives you a
greater sense of atmosphere.
1 Adjust the VOLUME on the mini
system until the sound from front
speakers is not distorted. If it is
distorted, the sound from the
subwoofer will also be distorted.
2 Play your favourite songs. Male vocal
tunes containing bass sounds are
most suitable for adjustment.
3 Adjust the SUBWOOFER
VOLUME to determine the
loudness of the bass sound from the
subwoofer.
STANDBY
VOLUME
SW 030 ACTIVE SUBWOOFER
SUBWOOFER
Phase Selector
PHASE
SELECTOR
0 0
0 180
Use PHASE SELECTOR located at
the rear of the subwoofer to select the
phase polarity. Selecting the polarity at
either 0˚ or 180˚ may determine better
bass reproduction effect in certain
listening environments (depending on
the type of front speakers and the
position of the subwoofer). It may also
change the expense and tightness of
sound, and affect the feeling of sound
field. Select the setting that provides
the sound you prefer when listening in
your normal listening position.
Repeat the adjustment for Volume and
Phase Polarity to suit your preference.
Once you have adjusted the subwoofer
to the settings you desire, use the
VOLUME control on the mini system to
adjust the volume of the subwoofer and
the other speakers. You do not need to
adjust the subwoofer settings again
even when you change the volume level
of the mini system.
pg 01-28/P78/37-Eng2 12/20/99, 2:23 PM 9