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12 Frequently Asked Questions and Troubleshooting
faQ and trouBleshootIng
How do I clean my subwoofer?
Use a dust free cloth or a soft brush to clean your subwoofer.
We recommend a specialty cloth (available through the
Xtatic shop at www.martinlogan.com) that cleans better than
anything else we have tried.
Is it safe to set things on my subwoofer?
While your Dynamo 300 is designed with a durable, stain-
resistant surface, we advise you not to set anything on your
Dynamo 300—especially containers holding liquids.
Is there likely to be any interaction between
my subwoofer and the television in my Audio/
Video system?
Yes. The Dynamo 300 subwoofer doesn’t use a shielded
driver. We recommend 3 feet between the Dynamo 300
subwoofer 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. The Dynamo 300, when the power switch is set to
‘Auto On’, will draw about 7 watts when idle and only
7 watts in standby mode.
Should I unplug my subwoofer during a thun-
derstorm?
Yes, or before. It's a good idea to disconnect all of your
audio/video components during stormy weather.
No Output
• Check that all your system components are turned on.
• Check that the master power switch adjacent to the AC
receptacle is set to ‘Auto On’.
• Check your wires and connections.
• Check all interconnecting cables.
• Make sure the 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 and side walls.
• Decrease the level.
• Check your processor setup.
• If the problem persists, contact your dealer.
Hums or Unusual Sounds
• Turn the Dynamo 300 off, unplug all signal inputs, turn
the Dynamo 300 back on and turn up the level. If the
problem disappears, the hum is originating elsewhere
in your system.
• Connect the Dynamo 300’s AC connection to the same
AC circuit as the pre amp.
• If the problem persists, contact your dealer.
Frequently Asked Questions Troubleshooting