MA-909
InstructionManual
ELECTRONICSCO.,LTD.
WIRELESSMIXER
OperatingManual
Thetraditionaldesignconceptoftheportable"all-in-one"wirelessamplifier
consistsofaunitwithaCDplayer,cassetteplayer,wirelessreceiver,andcontrol
mixermountedinsidetheactivespeakercabinet.Althoughitiseasytouseand
convenientforlowpowerportableamplifiersystems,thisdesignisnotsuitableforuse
inhighpoweramplifiersystems.Itwillnotonlybelimitedinitsfunctionand
performance,butitwillalsobeinconvenienttooperate.Youcanimaginehow
inconvenientitisrunningtothespeakersystemfarfromyoujusttoadjustthevolume
orchangeacassetteorCD.Tosolvetheinconvenienceofoperatingsuchahigh
powersystemandtoincorporateitsuser-friendlyfunctionsintoalloperations,MIPRO
leadsthemarketbydesigningthefirstintegratedwirelessinterlinkingamplifiersystem.
Thisnewsystemseparatesthecontrolmixerunitfromtheactivespeakersystem.
Themixerunitcontainsabuilt-inhigh-fidelitywirelessinterlinkingmodulewhich
transmitsthemixedaudiosignalstotheactivespeakersystem.Bydoingso,users
canconvenientlyoperatethesystemfromthenearby"wirelessmixer"insteadof
runningtotheremotespeakersystem.Inaddition,theMA-909wirelessmixercan
transmitthemixedaudiosignalssimultaneouslytoanyactivespeakersystem
equippedwithaninterlinkingreceivermodule,withoutanyconnectingcableandwith
totaldisregardtothequantity,specifications,orbrandofspeakers.Notonlydoesthe
MA-909ensurecompatibilitywithanyexistingPAsystem,butitsagilityinexpandinga
system'soutputpowerorsoundfieldprovidesmaximummaneuverabilityandeaseof
operation.
MainFeatures：
1.EIAStandard2Umetalcaseequippedwith2built-in16frequencywirelessmicrophone
system,highfidelitywirelessinterlinkingtransmitter,CDplayer,wiredmicrophonesocket,
LINE-INsocketforotheraudiosources,andLINE-IN/OUTsocketsforrecording.
2.Awiredmicrophone,twowirelessmicrophones,CD,cassetteplayer,andotheraudio
sourcescanbemixedsimultaneouslyattheinput.
3.Aseparatewirelesscontrolmixerunitallowsuserstocontrolactivespeakersystems
remotelytoachievethebestperformance.
4.Sixteenpresettransmitterfrequenciesmakeselecting aninterference-freefrequency
simpleandconvenient.
5.Themodulardesignoftheinterlinkingwirelessreceiverallowsittobeeitherbuilt-inor
mountedonspecificbrandsofactivespeakersystems.
6.Interlinkingreceivermodulesinstalledonactivespeakersystemsallowsunlimited
expansionandchangeofsetuppositionwithinthetransmitter'srange.
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WIRELESSMIXER
OperatingManual
1.PARTNAMESANDFUNCTIONS
Front ：Panel
8 7 6
3
2 14
5
(1)PowerSwitch&Indicator:Whenswitchisturnedon,theindicatorilluminatestoshow
normalpowerstatus.
(2)(6)MRM-70ACTReceiverModules:Featuresautoscan,ACTbutton,RF&AFmeters,
squelchcontrol,channeldisplay,&volumecontrol.
(3)ControlPanel:Controlsthevolumeofallsources&sendsoutputtotransmitter.
(4)FrontAntennaInputConnectorA:AllowsinstallationofextensionantennafromRear
AntennaInputConnectorA.
(5)FrontAntennaInputConnectorB:AllowsinstallationofextensionantennafromRear
AntennaInputConnectorB.
(7)CDplayer
(8)Transmitter (MT-90):Transmitsaudiotowirelessspeakers.
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OperatingManual
BackPanel：
WIRELESSMIXER
9
(9)Antenna:ReceiverAntenna.
(10)DCInputJack:Connectsunitto12VDCfromtheAC/DCadaptor.
(11)PowerSupplySocket:ACcordsocket
(12)TransmitterAntenna:Transmitsmixedaudiotoamplifiedspeakerreceivermodules.
(13)RackmountBrackets:AllowinstallationofthereceiverintoanEIA19-inchstandard
rackcase.
10 11 12 13
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WIRELESSMIXER
OperatingManual
A. ReceiverModulePartFunctions
A5 A6 A7 A8
NOISE
SCAN
ACT VOLUME
SENSITIVITY
RFCHANNEL
AF
A1A2A3A4
(A1)PowerSwitch/VolumeControl:Allowsyoutoturnthemixeron&off.TheAFLED
lightwillflashwhenmixeristurnedon.Increasethevolumebyturningina
clockwisedirection.
(A2)AudioSignalLevelIndicator:Indicatestheaudiolevelsreceivedfrommicrophones.
(A3)SensitivityAdjustment:Adjustsreceiversensitivitytoensurenonoiseoutputifreceiver
isnotreceivingsignalsfromtransmitters.
(A4)ACTbutton:Matchesthefrequencyofthemicrophonetothefrequencyofthe
receiver.
(A5)SCANbutton:Selectsreceiverchannelorautoscansallfrequencies.
(A6)ChannelIndicator:Indicatesthecurrentreceiverchannel.
(A7)NoiseIndicator:Indicatesthatthesystemisreceivinginterference.
(A8)RFSignalLevelIndicator:IndicatestheRFsignallevelsreceivedfromtransmitters.
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