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f
requently
Frequently Asked Questions
How do I clean my subwoofer? Use a dust free cloth or a
soft brush to clean your subwoofer.
Is it safe to set things on my subwoofer? While your
subwoofer is designed with a durable, stain-resistant surface, we
advise you not to set anything on your subwoofer—especially con-
tainers holding liquids.
Is there likely to be any interaction between my
sub and the television in my Audio/ Video system?
No. Although your sub doesn't use a shielded driver, modern
plasma, LCD, and LED television are not susceptible to magnetic
interference. We recommend 3 feet between the sub and video
components that are susceptible to magnetic fields.
Will my electric bill go 'sky high' by leaving my
subwoofer plugged in all the time? No. When the
power switch is set to 'Auto' the subwoofer will draw very few
watts when idle or in standby mode.
Should I unplug my sub during a thunderstorm? Yes,
or before. It's a good idea to disconnect all of your audio/video
components during stormy weather.
How do I connect my subwoofer to a receiver with
two subwoofer outputs . Receivers and processors with
multiple subwoofer outputs usually output the same signal on both
outputs. You can connect your subwoofer to either output. If your
processor/receiver offers independint control of the inputs, connect
your subwoofer to one output and use the receiver/processor's
menu to configure the outputs.
How do I connect my sub to a 2-channel system?
Your subwoofer is designed to connect to either 2-channel or multi-
channel systems (or both) and offers connetions and controls for
either scenario. Please review the "Connecting the Subwoofer and
Setting Controls" section of this manual for details.
My receiver has one sub output jack, but my sub has
two (or three) inputs . Which input should I use? In most
installations you will connect the receiver/processor's sub output to
the susbwoofer's LFE In (or Right In/LFE In in the case of the D
400). D
subs offer flexible connection options to accomo-
ynamo
date other scenarios. These are all outlined in the "Connecting the
Subwoofer and Setting Controls" section of this manual.
a
q
sked
uestions and
Where should I place the subwoofer in my room?
We recommend starting by placing the subwoofer in a corner.
Generally, subs have the most output when placed in the corner of
a room. However, this can also exaggerate the sub output making
it difficult to blend with the main speakers. Additional adjustments
may be necessary. Please refer to the "Placement" section of this
manual or www.martinlogan.com/subsetup for more details.
Troubleshooting
No Output
• Check that all components are plugged in and turned on.
• Check all interconnecting cables.
• Check that the subwoofer is connected to the sub out (or other
• Check that subwoofer output is enabled in the receiver/proces-
• Make sure the sub's level control is not turned down.
• If the problem persists, contact your dealer.
Muddy Bass
• Check placement. Try moving the subwoofer closer to the front
• Check the type of feet that are being used. Try installing the
• Decrease the volume level.
• Check your processor setup.
• If the problem persists, contact your dealer.
Hums or Unusual Sounds
• Turn the subwoofer off, unplug all signal inputs, turn the
• Connect the sub to the same AC circuit as the receiver/proces-
• If operating in wireless mode, move the sub away from micro-
• If the problem persists, contact your dealer.
ynamo
t
roubleshooting
appropriate output) on the receiver/processor/amplifier.
sor's setup menu.
and side walls.
ETC spikes.
subwoofer back on and turn up the level. If the problem disap-
pears, the hum is originating elsewhere in your system.
sor.
wave ovens and/or any devices that use wireless technology.
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