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• This subwoofer system employs Advanced Yamaha
Active Servo Technology II, which Yamaha has
developed for the production of higher quality, super-
bass sound. This super-bass sound adds a more realistic,
theater-in-the-home effect to your stereo system.
• This subwoofer can easily be added to your existing audio
system by connecting to either the speaker terminals or the
line output (pin jack) terminals of the amplifier.
• For effective use of the subwoofer, the subwoofer’s
super-bass sound should be matched to the sounds of
your front speakers. You can create the best sound
quality for various listening conditions by using the
HIGH CUT control and the PHASE switch.
• The Automatic power-switching function saves you the
trouble of pressing the STANDBY/ON button to turn the
power on and off.
• The subwoofer can be linked to a Yamaha component for
simultaneous power on/off operation.
Use the supplied system control cable to connect the
subwoofer to a Yamaha component that features a
system connector jack. When you turn on or off the
power to the connected component, the subwoofer will
also be turned on or off.
• The flared, gently twisting shape diffuses the vortex of
air generated around the edge of the port, creating a
smooth flow of air. This reduces extraneous noise not
present in the original input signal, and provides clear,
accurate low frequency reproduction.
• The subwoofer can also reproduce a bass sound that is
appropriate for the source. (NS-SW300 only)
It features a B.A.S.S. switch that enables you to select a
bass effect that is suitable for the source.
After unpacking, check
that the following
accessory is contained.
FEATURES
SUPPLIED ACCESSORY
System control cable (5 m x 1)
Since the low-end frequencies of audio signals feature long wavelengths, they are almost non-directional to human ears.
The super-bass range does not create a stereo image. Therefore, a single subwoofer may be enough to produce a high-
quality super-bass sound. However, using two subwoofers (similarly to L and R front speakers) can enhance your acoustic
experience.
Place the subwoofer as shown in fig.
,
or
for the optimum effect.
: subwoofer
: front speaker
Using one subwoofer
Place the subwoofer on the outside of either the left or right
front speaker.
Placing the subwoofer in between the left and right
front speakers
If you are placing the subwoofer in between the left and
right front speakers, position it slightly at an angle toward
the wall for better effect.
Using two subwoofers
Place them on the outside of
each front speaker.
Notes
• This unit features a magnetically shielded design. However, there is still a chance that placing it too close to a CRT-type TV set
might impair picture color. Should this happen, move this unit away from the TV set.
• If the speaker volume is very loud, furniture or window glass may resonate and the subwoofer itself may vibrate. In this case,
lower the volume level. To limit resonance, use a thick curtain or similar cloth that tends to absorb sound vibrations effectively.
Also, changing the subwoofer position may be helpful.
PLACEMENT
Subwoofer orientation
A
B
C
A
or
B
or
C
Note
The placement shown in the figure below is also possible.
However, if the subwoofer system is placed directly facing a wall,
the bass effect may suffer due to phase cancellation caused by
the interference between the direct and reflected sounds.
To prevent this from happening, place the
subwoofer system at an angle.
(Figures , ,
and ).
A
B
C
There may be a case that you
cannot obtain enough super-bass
sound from the subwoofer due to
standing waves.
