8
Repair
For warranty repair or replacement, refer to the war-
ranty information on page 11.
Non-warranty repair for Mackie products is available
at a factory-authorized service center. To locate your
nearest service center, visit www.mackie.com, click
“Support” and select “Locate a Service Center.” Service
for Mackie products living outside the United States can
be obtained through local dealers or distributors.
If you do not have access to our website, you can
call our Tech Support department at 1-800-898-11,
Monday-Friday, 7 am to 5 pm Pacific Time, to explain the
problem. Tech Support will tell you where the nearest
factory-authorized service center is located in your area.
CARE AND MAINTENANCE
Your Mackie subwoofer will provide many years of reli-
able service if you follow these guidelines:
Avoid exposing the subwoofer to
moisture. If your loudspeakers are
set up outdoors, be sure they are
under cover if you expect rain.
• Avoid exposure to extreme cold (below freezing
temperatures). If you must operate the subwoof-
ers in a cold environment, warm up the voice coil
slowly by sending a low-level signal through it for
about 15 minutes prior to high-power operation.
• Use a slighty damp cloth with a mild soap solution
to clean the cabinets. Only do this when the power
is turned off. Avoid getting moisture into any of
the openings of the cabinet, particularly where the
driver is located.
SERVICE INFORMATION
If you think your Mackie product has a problem,
please check out the following troubleshooting tips and
do your best to confirm the problem. Visit the Support
section of our website (www.mackie.com/support)
where you will find lots of useful information such as
FAQs, documentation, and user forums. You may find
the answer to the problem without having to send your
Mackie product away.
Troubleshooting
No sound
• Are the level controls on the mixer or amplifier
turned all the way down? Follow the procedures in
the “Quick-Start” section on page 4 to verify that
all the volume controls in the system are properly
adjusted.
• Is the signal source working (and making union
scale)? Make sure the connecting cables are in good
repair and securely connected at both ends.
• Make sure the mixer does not have a Mute on or a
Processor loop engaged. If you find something like
this, make sure the volume/gain is turned down
before disengaging the offending switch.
Poor bass performance
• Check the polarity of the connections between the
mixer and all the loudspeakers and subwoofers.
You may have your positive and negative connec-
tions reversed at one end of one cable, causing one
loudspeaker to be out-of-phase.
Poor sound
• Is it loud and distorted? Make sure that you’re not
overdriving a stage in the signal chain. Verify that
all level controls are set properly.
• Is the input connector plugged completely into the
jack? Make sure all connections are secure. It’s a
good idea to periodically clean all electrical con-
nections with a non-lubricating electrical contact
cleaner.
