Sunfire HRS-12 - Manual (Page 17)

User's Manual
17
Troubleshooting
This subwoofer has been designed
and built to provide years of trouble-free
performance. Most problems that occur
can usually be solved by checking your
setup, or by making sure that the compo-
nents connected to the amplifier are on
and fully operational.
The following information will help you
deal with common problems you may ex-
perience during normal use. If a problem
persists, please contact your Dealer for
assistance.
Not enough bass
• Check that your processor’s outputs are
connected to the subwoofer’s line-level
inputs and not to the line-level high
pass outputs. If they are connected to
the outputs by mistake, the bass will be
weak but the subwoofer will still func-
tion.
• If your processor has a single sub-
woofer/LFE output jack, make sure it
connects to the subwoofer’s Left input.
If the bass is still not enough after
checking all the remaining points, use
a Y cable to connect the processor’s
single subwoofer/LFE output to the
subwoofer’s left and right inputs.
• Try moving the subwoofer to a different
location. See Location on page 10.
Placing it in a corner will maximize the
bass output and give the smoothest
possible response.
• Home Theater processors usually
have a way of adjusting the level of the
subwoofer/LFE output, either using a
remote control or with a small volume
knob on the back panel. Make sure that
this is adjusted correctly.
• Check that your processor or receiver’s
sub output is turned on. Some systems
only have a sub output signal when the
front speakers are set to “small.”
• If the processor’s Sub/LFE output has
an adjustable crossover frequency,
make sure that the subwoofer’s own
crossover point is set to Bypass or part
of the bass range may be missing.
Not enough bass in a 5.1
system
• 5.1 Home Theater processors usually
have a bass management system which
allows the bass to be redirected among
your speakers. For example, the bass
normally present in the front speak-
ers can be redirected to play in the
subwoofer, or the subwoofer can play
the bass from all the speakers, in addi-
tion to its dedicated LFE (low frequency
effects) channel. Make sure that all of
the bass management options are cor-
rectly set. The processor may have a
way of turning the subwoofer output off
entirely, so check that it is always on.
• Check that the processor calibration
procedure is correctly adjusted. Usually,
the preamp will send a test tone through
all the speakers in your system, allowing
you to adjust (trim) the volume of each
channel until they are all playing at the
same level.
• If the bass is weak only when playing
5.1 surround sources, check that your
processor is correctly set to decode the
5.1 surround modes, such as Dolby
Digital or DTS.
• Some DVD discs have a menu which
allows you to select which soundtrack to
play. Check that the correct 5.1 surround
audio soundtrack is selected, otherwise
it may just play stereo into your preamp
and you won’t get the true LFE signal
into the subwoofer.