Mackie 550 Speaker User Manual


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Owner’s Manual
19
Owner’s Manual
Hum
• Trydisconnectingthecableconnectedtothemain
inputjack.Ifthenoisedisappears,itcouldbe
a“groundloop,”ratherthanaproblemwiththe
SRMloudspeaker.Trysomeofthefollowing
troubleshootingideas:
• Usebalancedconnectionsthroughoutyoursystem
forthebestnoiserejection.
• Wheneverpossible,plugalltheaudioequipment’s
linecordsintooutletswhichshareacommon
ground.Thedistancebetweentheoutletsandthe
commongroundshouldbeasshortaspossible.
Repair
Forwarrantyservice,refertothewarranty
informationonpage27.
Non-warrantyserviceisavailableatafactory-
authorizedservicecenter.Tolocatethenearest
servicecenter,visitwww.720trees.com,click“Contact
TechSupport”andselect“LocateaServiceCenter
orDistributor”[3].ServiceforSRMloudspeakersliving
outsidetheUnitedStatescanbeobtainedthroughlocal
dealersordistributors.
Ifyoudonothaveaccesstoourwebsite,youmaycall
theTechSupportdepartmentat1-800-898-3211,
Monday-Friday,duringnormalbusinesshours,Pacic
Time,toexplaintheproblem.TechSupportwilltellyou
wherethenearestfactory-authorizedservicecenteris
locatedinyourarea.
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