PULSE+ MA-330 User manual

1MIC1Volume/GaincontrolforMIC1input.
2MIC2Volume/GainlevelcontrolforMIC2input.
3MIC3/AUXSoundlevelcontrolforMIC3orAUXsignalinput.
4LINEUsingthiscontrolyoucanadjustthelineinputlevel.
5BASSUsedtoadjustthelowlevelfrequencies.
6TREBLEUsedtoadjustthehighlevelfrequencies.
7MASTER
7MASTERMastercontrolforcontrollingoverallvolumeforMIC1/MIC2/MIC3AUX.
8POWERLEDIlluminateswhenthepowerisswitchedon
9PROTECTLEDWhenilluminated,thisindicatesthattheamplifierisinthermal
protectionduetoexcessiveinternalhightemperature.IftheLEDlightsup,please
checkthattheareaaroundtheunitiswellventilated.
10SIGNALLEDIndicatesthepresenceofaninputsignal.
11PEAKLEDIndicatestheoutputsignallevelistoohighorisdistorting.
12POWERSWITCH
12POWERSWITCHSwitchestheunitonandoff,ifitisswitchedonbutthePOWER
LEDisnotlitcheckbothfuses.OneisinthemainsplugtheotherisundertheIEC
socket.NOTE:Useonlythecorrectratedfusewhenyouarereplacingablownfuse.
Undernocircumstancesshouldyouuseahigherratedfuse.


1IECSOCKETOnlyusecorrectpowercordforyourcountry.
2EarthCLAMPIfyouareusingapowercablewithnoearthitisessentialthatyou
connectthisunitviatheearthclamp.
324VOLTSUPPLY/DCBATTERYPOWERSUPPLYTERMINALS
Thisamplifiercanbepoweredbya24VoltDCbatterythroughthe‘+’and‘’contacts.
Whenthebatteryisbeingusedtheamplificationoutputisreducedinrelationtothe
battery’sstate.Idealforifthereiseverapowercutandyouneedtokeepusingthe
battery’sstate.Idealforifthereiseverapowercutandyouneedtokeepusingthe
system.Itisrecommendedtouseabatterywithacurrentvalueabletogrant
amplificationforthetimerequired(e.g.40Ah=~8h)
4LOUDSPEAKERTERMINALSItispossibletoconnectpassiveloudspeakerswith
atotalof8byconnectingthe“”terminalto“COM”andthe“+”terminalto“8”
amplifierterminal.Itisalsopossibletoconnectconstantvoltage(100V)line
transformerspeakers,byconnectingthe“”loudspeakerteminalto“COM”and
the“+”loudspeakerterminalto“100V”terminal.Donotconnectlowimpeadance
the“+”loudspeakerterminalto“100V”terminal.Donotconnectlowimpeadance
speakersatthesametimeasusingthelinetransformerloudspeakers.When
connectingmakesureallconnectionsaresolderedwithbarewirestrandsshowing
thatcouldshorttheconnectionstogether.
5SLAVEOUTPUTLineoutputphonoconnectortosendasignaltoanotherunit.
6LINEOUTOUTPUTLineouputphonoconnectortosendoutputtoanotherunit.
7LINEININPUTLineinputstereophonoconnectors.
8MIC/AUXSWITCH
8MIC/AUXSWITCHToselectbetweenanAUXsignalandaMICsignal.
9MIC3/AUXINPUTAllowseitheraMicrophonesignaloraline(AUX)inputsignal.
10MIC2Unbalancedmonojackmicrophoneinputviaa6.35mmsocket.
11PHANTOMSELECTORWhenthisbuttonispressed,+24VDCiscreated
12PRIORITYSELECTORSelectthistoenablepriorityonMIC1overMIC2/3
MIC2/3levelsareautomaticallyattenuatedby40dB.
13MIC1INPUTBalancedXLRmicrophoneinputconnector.Itisrecommendedthat
youdon’tuseanunbalancedmicrophonetoavioddamagetotheunitorthemic.
youdon’tuseanunbalancedmicrophonetoavioddamagetotheunitorthemic.
14TEMMINALBOARDMIC1canbehardwiredintotheunitviathe3poleterminal
connections.Payattentiontothepolaritieswhenwiring(+,,GND).
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100VLINE
Wheninstallinga100Vlinesystem,itisimportantthatthecorrectdiameterof
cableisbeingusedtoconnecttheamplifiertothespeakers
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Thefollowingchartgivesanindicationofwhattouse:
Cablerunsshouldbekeptasshortaspossibleandkeptawayfrompotential
sourcesofinterferencesuchastelecomcables,mainsand3phaseelectricity.
sourcesofinterferencesuchastelecomcables,mainsand3phaseelectricity.
Thecommonlinespeakersshouldbeconnectedtothecommonterminal,andthe
100Vlineonthespeakersshouldbeconnectedtothe100Vterminal.Takecarethat
thesumofthewattageofthespeakersonthelinedoesnotexceedthetotalpower
availablefromtheamplifier.
Pleasenotethattheloudspeakerterminalsarefullyfloatingwithrespecttothe
chassis.Intheeventofcrosstalktootherservicesorinstabilitywiththesound,
thenitmaybebeneficialifthe‘COM’terminalisconnectedtotheearthterminal.
thenitmaybebeneficialifthe‘COM’terminalisconnectedtotheearthterminal.
Makesurewhenconnectingbarewirestothe100Vterminalspacingthatnobare
wiresareexposedandthatthescrewsarefirmlyscreweddown.Insurethatthe
coverisreplacedafterallconnectionshavebeenmade.

4xLineVoltageLoudspeakers
2xLowImpedanceSpeakers2xLowImpedanceSpeakers
8xLineVoltageLoudspeakers