Sony SA-W303 - Manual (Page 5)

Basic Operations
Adjusting the Sound
You can adjust the sound of the woofer to suit the sound of your front speakers. Reinforcing the bass sound gives
you a greater sense of atmosphere.
LEVEL CUT OFF FREQ PHASE
Note
If the sound distorts when you
turn on the bass reinforcement
from your amplifier (such as,
DBFB, GROOVE, the graphic
equalizer, etc.), turn off the bass
reinforcement and adjust the
sound.
Note
Selecting NORMAL or REVERSE
with the PHASE button reverses
the polarity and may provide
better bass reproduction in certain
listening environments (depending
on the type of front speakers, the
position of the woofer and the
adjustment'of the cut-off
frequency). It may also change the
expanse and tightness of the
sound, and effect the feeling of the
sound field. Select the setting that
provides the sound you prefer
when listening in your normal
listening position.
1 Adjust the cut-off frequency.
Turn the CUT OFF FREQ control, depending on the reproduction
frequencies of your front speakers. 80Hz
Refer to the following when adjusting.
65Hz
© Typical very small sized speakers: 5 - 7 cm dia.
@ Typical small sized speakers: 8 -15 cm dia.
® Typical medium sized speakers: 16 -24 cm dia. 50Hz
® Typical large sized speakers: more than 25 cm dia.
140Hz
200Hz
To make the most of the low level converter function of Dolby digital,
turn the CUT OFF FREQ as high as possible when playing back the
Dolby digital (AC-3).
Adjust the volume level of the woofer.
Turn the LEVEL control so that you can hear the bass sound a little
more than before. Do not raise the bass excessively as this will result
in the loss of balance and depth. To increase the volume, turn the
control clockwise. To decrease the volume, turn the control
counterclockwise.
Play your favorite song and movie.
Male vocal tunes and voice containing bass sounds are most suitable
for adjustment. Turn the volume-for front speakers to the same level
as usual. When playing a movie, raise the volume higher than the
level for music to produce a more powerful sound.
Select the phase polarity.
Press the PHASE button to select the phase polarity.
Repeat steps 1 to 4 to adjust for your preference.
Once you have adjusted the woofer to the settings you desire, use the
VOLUME control on the amplifier to adjust the volume of the woofer
with that of the other speakers. You don't need to adjust the woofer
settings when you change the volume level of the amplifier.