Mackie HD 1801 Car Speaker User Manual


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Appendix B:
Connections
XLR Connectors
TheHD1801hastwofemaleXLRinputsthataccept
balancedline-levelsignals.Whenconnectingabalanced
signal,besureit’swiredperAES(AudioEngineering
Society)standards:
XLR
Pin1–Shield(Ground)
Pin2–Hot(+) 
Pin3–Cold(–)
TherearealsotwomaleXLRconnectorsonthe
HD1801labeledfullrange.Thesearealsowired
accordingtotheAESstandardslistedabove.
Thefullrangeconnectorsallowyoutoconnect
severalHD1801’s.Simplyplugthesignalsource
(e.g.,mixeroutput)intotheHD1801inputjack,and
patchthatsubwoofer’sfullrangejacktothenext
subwoofer’sinputjack,andsoon,daisy-chaining
multiplesubwoofers.
Thereisalimittohowmanyyoucan
daisy-chaintogether.Ageneralruleisto
maintainaloadimpedancetentimesor
morethanthesourceimpedancetoprevent
excessiveloadingonthesource.Forexam-
ple,ifyourmixerhasanoutputimpedanceof120ohms,
thenyoucandaisychainuptonineHD1801s.Thisis
aloadof1222ohms(HD1801inputimpedance=11
kohms;9oftheseinparallel=1222ohms).Since
microphonestypicallyhaveahigheroutputimpedance,
youshouldlimitdaisy-chainingfromamicsourcetotwo
HD1801s(assumingthatloudspeakersarealsocon-
nectedtothesubwoofers).
Balanced XLR Connectors
Repair
Forwarrantyservice,refertothewarranty
informationonpage19.
Non-warrantyserviceforMackieproductsis
availableatafactory-authorizedservicecenter.To
locatethe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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.
16
HD1801
HD1801
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