Yamaha NS-SW1000, Owner'S Manual

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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.
• Placing the subwoofers too close to a CRT-type TV may impair the picture color or cause a buzzing noise. In this case, place the subwoofers and TV at a separated position where these effects do
not occur. This is not an issue with LCD and plasma TVs.
• 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 on the right 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.
Note