User Manual

6
Troubleshooting
NO SOUND – Verify the connection between the amplifier
and speaker is correct. A speaker requires two wires, one
positive and one negative, between the amplifier and
speaker.
Verify source material is playing through the amplifier and
that the volume is not at the lowest point. Check that the
amplifier is not in ‘mute’. In some cases, the amplifier may
feature a speaker A/B selector. Verify the speaker selector
is set to the correct output that is connected to the
speaker.
Verify source material is playing through the amplifier and
that the volume is not at the lowest point. Check that the
amplifier is not in ‘mute’. In some cases, the amplifier may
feature a speaker A/B selector. Verify the speaker selector
is set to the correct output that is connected to the
speaker.
If there is no sound after a long time of use, verify the
amplifier is not hot. The amplifier may have overheated
and shutdown automatically.
If you listen at very high levels and have a powerful
amplifier, check that the fuse did not blow (SL-28, SL-12, SL-
15 models only).
NO POWER - The power switch needs to
be in the ‘on’ position. The power cord
should be firmly placed into the IEC socket
on the rear of subwoofer and into the AC
outlet. The LED on the rear of the
subwoofer will illuminate when the power
switch is ‘on’. Verify the subwoofer is set to
the correct AC voltage level and check that
the fuse has not blown.
NO SOUND - The subwoofer may be in a
standby condition. The standby engages
after 30 minutes of no activity. To take the
subwoofer out of the standby condition,
simply play audio to the input of the
subwoofer.
LEVELS & SOURCE – Verify media source is
playing. For subwoofers, you will need to
make sure the media is consists of low
frequency sounds such as drums, beats or
explosions. Check the levels on the volume
and bass EQ are not set to minimum.
SL-10S SUBWOOFER
SL-45C, SL-25C, SL-5M, SL-8, SL-28, SL-12, SL-15 SPEAKERS
BAD SOUND – Verify the connection between the amplifier
and speaker is correct. The positive terminal of the
amplifier must be connected to the positive terminal of the
speaker. The negative terminal of the amplifier must be
connected to the negative terminal of the speaker.
Adjust the volume to a lower level and set all EQ (treble,
mid, bass) levels to flat. If the sound improves, than the
amplifier is underpowered and cannot meet your listening
expectation.
Any hum or buzzing when no media is playing is due to
amplifier. Verify if there are any ground loop issues and the
amplifier is connected to clean power. Review the manual
of the amplifier.
BAD SOUND – Verify the audio connection
between the A/V receiver and subwoofer
is not adjacent to any equipment that can
cause interference (air-conditioner,
motors, and light dimmers).
Adjust the Low Pass Freq and Volume until
the desired sound is heard. It is advised to
start at 80Hz on the Low Pass Freq knob
and slowly bring the Volume knob up.
Any hum or buzzing when no media is
playing may be due to groud loop issues or
a dirty power source. Disconnect the audio
input cable and try a different power
source in another room to confirm it is not
the subwoofer. Plugging electronic
equipment into different AC circuits
increases the chance of a group loop.