5
En
Notes
• Once the subwoofer volume has been set, you can
leave the subwoofer’s VOLUME control set as it is
and use your amplifier’s volume control to adjust the
volume of the entire system.
• If you replace the front speakers (NS-B285) with
other speakers, you will need to re-adjust the
subwoofer’s volume.
• The frequency characteristics graphs below show
how the subwoofer and front speakers work
together to provide a full-range sound.
Frequency characteristics
If this product doesn’t work as expected, look for a possible cause below. If the issue you are experiencing is not
listed, or you cannot resolve it after reading through these instructions, disconnect the power cable and contact an
authorized Yamaha dealer or service center.
■
Subwoofer (NS-SW280)
The following graph shows the
frequency characteristics of the
subwoofer (NS-SW280).
The following graph shows the combined frequency characteristics of
the subwoofer (NS-SW280) and front speakers (NS-B285), and center
speaker (NS-C385).
Troubleshooting
Issue
Possible cause
Remedy
There’s no sound.
The speaker cables are not
connected properly.
Make sure the speaker cables are connected properly.
The sound is very quiet.
The speaker cables are not
connected properly.
Make sure the speaker cables are connected properly:
L (left) to L, R (right) to R, “+” to “+” and “–” to “–”.
20
50
100
200
500 Hz
40
50
60
70
80
90
100 dB
20
50
100
200
500 Hz
40
50
60
70
80
90
100 dB
NS-SW280
NS-B285
20
50
100
200
500 Hz
40
50
60
70
80
90
100 dB
NS-SW280
NS-C385
Issue
Possible cause
Remedy
The POWER switch is set
to ON but the subwoofer
doesn’t work.
The power cable is not connected
properly.
Set the POWER switch to OFF, then make sure the power
cable is connected properly.
There’s no sound.
The VOLUME control is set to 0. Turn up the VOLUME control.
The subwoofer cable is not
connected properly.
Make sure the subwoofer cable is connected properly.
The subwoofer is too
quiet.
The source material doesn’t
contain much bass.
Try playing source material that contains more bass.
Bass sounds are being cancelled
out by standing waves.
Reposition the subwoofer, or break up parallel wall surfaces
by placing bookshelves or other large objects along the wall.
