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User's Manual
Troubleshooting
The Sunre subwoofer is expertly
designed and built to provide years of
trouble-free performance. Most problems
that occur can usually be solved by
checking your setup or making sure
that the components connected to the
amplier 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 Sunre
Dealer for assistance.
Not enough bass
• Check that your preamplier’s outputs
are connected to the subwoofer am-
plier’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 function.
• If your preamplier has a single sub-
woofer/LFE output jack, make sure it
connects to the subwoofer amplier’s
Left (Mono) input. If the bass is still not
enough after checking all the remaining
points, use a Y cable to connect the
preamplier’s single subwoofer/LFE
output to the subwoofer’s right and left
inputs.
• You might try a different location for
your subwoofer, such as closer to a
corner.
• Home Theater preampliers 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 preamplier 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 preamplier’s subwoofer/LFE
output has an adjustable crossover
frequency, make sure that the Sunre
subwoofer’s own crossover point is set
higher or part of the bass range will be
missing.
Not enough bass in a 5.1
system
• 5.1 Home Theater preampliers 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 preamplier may have a
way of turning the subwoofer output off
entirely, so check that it is always on.
• Check that the preamplier 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
preamplier is correctly set to decode
the 5.1 surround modes, such as Dolby
Digital or DTS.
• 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.
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