Clever Acoustics MA 4040 Manuale utente

MA 4040 160W

4 Zone Mixer Amplier

User Manual

Order code: CRAM32

MA 4040 Mixer Amplier

VOL

MUTE

CH 1

456

-10 +10

VOL

MUTE

CH 2

456

-10 +10

VOL

MUTE

CH 3

456

-10 +10

VOL

MUTE

CH 4

456

-10 +10

VOL

MUTE

CH 5

-10 +10

010

PHONE

VOLUME

MONITOR

VOLUME

010

VOLUME

ZONE 3

MONITOR

456

ZONE 1 ZONE 2

ZONE 4

VOLUME

MONITOR

456

VOLUME

MONITOR

456

VOLUME

MONITOR

456

OFF

POWER

POWER INPUT:

110-240V~50/60Hz

110-120V~60Hz - FUSE: T6.3A 250V

220-240V~50/60Hz - FUSE: T3.15A 250V

110-120V~ 220-240V~

SERIAL NUMBER

MONITOR

LINE OUTPUT

G +

MONITOR

1W 8Ω

PRIORITY

– +

TEL PAGING

TEL

VOLUME

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 1

ZONE

COM GNDHOT

CH4

LINE

CH3

PHANTOM

LINE MIC

CH2

CH1

CH5

LINE

PHANTOM

LINE MIC

G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 2 G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 3 G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 4 G – +

456

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK.

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN. NO USER

SERVICABLE PARTS INSIDE

www.cleveracoustics.co.uk

PHANTOM

LINE MIC

POWER CONSUMPTION (max.): 180W

GAIN

www.cleveracoustics.co.uk MA 4040 160W Mixer Amplier User Manual 2

Safety advice

WARNING

FOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL

CAREFULLY BEFORE YOUR INITIAL START-UP!

• Beforeyourinitialstart-up,pleasemakesurethatthereisnodamagecausedduringtransportation.

• Shouldtherebeanydamage,consultyourdealeranddonotusetheequipment.

• Tomaintaintheequipmentingoodworkingconditionandtoensuresafeoperation,itisnecessary

fortheusertofollowthesafetyinstructionsandwarningnoteswritteninthismanual.

• Pleasenotethatdamagescausedbyusermodicationstothisequipmentarenotsubjecttowarranty.

IMPORTANT:

The manufacturer will not accept liability for any resulting damages caused by the non-observance

of this manual or any unauthorised modication to the equipment.

OPERATING DETERMINATIONS

Ifthisequipmentisoperatedinanyotherway,thanthosedescribedinthismanual,theproductmaysufferdamageand

thewarrantybecomesvoid.Incorrectoperationmayleadtodangere.g:short-circuit,burnsandelectricshocksetc.

Donotendangeryourownsafetyandthesafetyofothers!

Incorrectinstallationorusecancauseseriousdamagetopeopleand/orproperty.

• Neverletthepowercablecomeintocontactwithother

cables.Handlethepowercableandallmainsvoltage

connectionswithparticularcaution!

• Neverremovewarningorinformativelabelsfromtheunit.

• Donotopentheequipmentanddonotmodifytheunit.

• Donotswitchtheequipmentonandoffinshortintervals,

asthiswillreducethesystem’slife.

• Onlyusetheequipmentindoors.

• Donotexposetoammablesources,liquidsorgases.

• Alwaysdisconnectthepowerfromthemainswhen

equipmentisnotinuseorbeforecleaning!Onlyhandle

thepower-cablebytheplug.Neverpullouttheplugby

pullingthepower-cable.

• Makesurethattheavailablevoltage

isbetween240V,50HzAC.

• Makesurethatthepowercableisnevercrimpedor

damaged.Checktheequipmentandthepowercable

periodically.

• Iftheequipmentisdroppedordamaged,disconnectthe

mainspowersupplyimmediatelyandhaveaqualied

engineerinspecttheequipmentbeforeoperatingagain.

• Iftheequipmenthasbeenexposedtodrastic

temperatureuctuation(e.g.aftertransportation),

donotconnectpowerorswitchitonimmediately.

Thearisingcondensationmightdamagetheequipment.

Leavetheequipmentswitchedoffuntilithasreached

roomtemperature.

• Ifyourproductfailstofunctioncorrectly,stopuse

immediately.Packtheunitsecurely(preferablyinthe

originalpackingmaterial),andreturnittoyourProlight

dealerforservice.

• Onlyusefusesofsametypeandrating.

• Repairs,servicingandpowerconnectionmustonlybe

carriedoutbyaqualiedtechnician.THISUNITCONTAINS

NOUSERSERVICEABLEPARTS.

• WARRANTY:Threeyearsfromdateofpurchase.

CAUTION!

KEEP THIS EQUIPMENT

AWAY FROM RAIN,

MOISTURE AND LIQUIDS

CAUTION!

TAKE CARE USING

THIS EQUIPMENT!

HIGH VOLTAGE-RISK

OF ELECTRIC SHOCK!!

www.cleveracoustics.co.uk MA 4040 160W Mixer Amplier User Manual 3

Product overview & technical specications

TheMA40404ZoneMixerAmplierisidealforsystemswheremultiplezonesarerequired.Designedforuse

invenuessuchasschools,churches,entertainmentvenuesorcommercialbuildings,theMA4040offersmulti

zoneaudioroutingcoupledwithfourindependent40Wrmsampliers.TheMA40404zonemixeramplierhas

veinputchannels,eachwithselectableindependentoutputrouting,inputgain,treblebassandvolumecontrols.

Inputchannels1thru3areviaXLR/Jackcombosockets,eachwithLine/Mic/Mic+Phantomselection,input

channels4&5areviastereolineRCAphonolevelinputs.

FouroutputzoneseachfeatureLEDVUindicators,monitorselectionandvolumecontrolswithoutputsforline

level,lowimpedance(4-8Ω)andconstantvoltagespeakersystems(25V,75V&100V).Theon-boardmonitor

facility,selectableforeachzoneoutputfeaturesbothalinelevelaudioand1W8Ωloudspeakeroutputsuitablefor

drivingaloudspeakerlocaltotheMA4040zonemixer.

•Fouroutputzoneseachwithlevelcontrolandmonitorselection

•Fourindependent40Wrmsamplifiersoutputtingto4-8Ωor25,70,100V

•Fiveinputchannels:

Channels1-3areviaXLR/Jackcombosockets,

eachwithLine/Mic/Mic+Phantomselection(48V)

Channels4and5areviaphono(RCA)stereolinelevelinputs

•3U,19”rackmountchassis

•Inputgain,treble,bassandlevelcontrols

•Selectableoutputroutingforallinputchannels

•MonitorfunctionwithlevelcontrolandLEDVUmeter

•Outputformonitorloudspeaker:1W,8Ω

•Headphoneoutputwithlevelcontrol

•Telephone/paginginput(zoneselectable)withadjustablelevel

•Prioritycontactformusicmutefacility(CH4and5mute,CH1-3priority)

•VOXoperatedpriorityforTELinput

•CH1inputautomaticVOXpriority(internaljumperforpriorityoverride)

•TelephoneandMIC1(musicmutefacility)

•Inputchannelmuteswitchesonfrontpanel

•LinelevelMIXoutput

•Temperaturecontrolled,variablespeedfancooling

MA 4040 160W 4 Zone Mixer Amplier

MA 4040 Mixer Amplier

VOL

MUTE

CH 1

456

-10 +10

VOL

MUTE

CH 2

456

-10 +10

VOL

MUTE

CH 3

456

-10 +10

VOL

MUTE

CH 4

456

-10 +10

VOL

MUTE

CH 5

-10 +10

010

PHONE

VOLUME

MONITOR

VOLUME

010

VOLUME

ZONE 3

MONITOR

456

ZONE 1 ZONE 2

ZONE 4

VOLUME

MONITOR

456

VOLUME

MONITOR

456

VOLUME

MONITOR

456

OFF

POWER

POWER INPUT:

110-240V~50/60Hz

110-120V~60Hz - FUSE: T6.3A 250V

220-240V~50/60Hz - FUSE: T3.15A 250V

110-120V~ 220-240V~

SERIAL NUMBER

MONITOR

LINE OUTPUT

G +

MONITOR

1W 8Ω

PRIORITY

– +

TEL PAGING

TEL

VOLUME

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 1

ZONE

COM GNDHOT

CH4

LINE

CH3

PHANTOM

LINE MIC

CH2

CH1

CH5

LINE

PHANTOM

LINE MIC

G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 2 G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 3 G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 4 G – +

456

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK.

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN. NO USER

SERVICABLE PARTS INSIDE

www.cleveracoustics.co.uk

PHANTOM

LINE MIC

POWER CONSUMPTION (max.): 180W

GAIN

Specications MA 4040 160W Mixer Amplier

Poweroutput 4x40Wrms(4x90Wpeak)

Speakeroutputs 25V,70V,100Vand4-8Ω

Sensitivity -CH1–3:-42dB/-38dB

(Micbal./unbal./),-26dB/-20dB

(Linebal./unbal.)

-CH4:-10dB

-CH5:0dB

Frequencyresponse 50Hz-17kHz(±3dB)

Tonecontrol ±10dB-100Hz/±10dB-10kHz

(bass/treble)

S/Nratio >55dB(Mic),>60dB(Line)

THD <1%(@1kHz1Woutput)

Powerconsumption 180W(max.)

Powersupply 110-240V~50/60HzAC

Fuse T3.15A250V

Dimensions 135x484x310mm

Weight 15kg

Ordercode CRAM32

CH 1

456

-10 +10

CH 2

456

-10 +10

CH 3

456

-10 +10

CH 4

456

-10 +10

CH 5

456

100

456

-10 +10

010

PHONE

VOLUME

MONITOR

VOLUME

010

VOLUME

ZONE 3

MONITOR

456

ZONE 1 ZONE 2

ZONE 4

VOLUME

MONITOR

456

VOLUME

MONITOR

456

VOLUME

MONITOR

456

OFF

POWER

GAIN

MUTE MUTE MUTE MUTEMUTE

VOL VOL VOL VOL VOL

MA 4040 Mixer Amplier

135mm

484mm 310mm

www.cleveracoustics.co.uk MA 4040 160W Mixer Amplier User Manual 4

Panel & connection identication

01-Gaincontrol

02-HFlevelcontrol

03-LFlevelcontrol

04-Muteswitch

05-MuteLED

06-Inputchannellevelcontrol

07-Zoneselectionswitches

08-Headphonelevelcontrol

09-Headphoneoutput

10-LEDVUoutputmeter

11-Monitorlevelcontrol

12-Zoneoutputlevelcontrol

13-Monitoroutputselector

14-PowerLED

15-Powerswitch

16-Coolingfan

17-ACmainspowerinput

18-ACmainsfuse

19-ACvoltageselector

20-Monitor(MIX)lineoutput

21-Monitorloudspeakeroutput

(1W8Ω)

22-Prioritycontrolterminals

23-Telephone/paginginput(TEL)

24-Telephone/paginginput

zoneselection&volumecontrol

25-StereoLINEinputs

26-MonoMIC/LINEinputs

27-Inputsensitivityandphantom

powercontrol

28-Balancedlinelevelzoneoutputs

29-Poweramplieroutputs

MA 4040 Mixer Amplier

VOL

MUTE

CH 1

456

-10 +10

VOL

MUTE

CH 2

456

-10 +10

VOL

MUTE

CH 3

456

-10 +10

VOL

MUTE

CH 4

456

-10 +10

VOL

MUTE

CH 5

-10 +10

010

PHONE

VOLUME

MONITOR

VOLUME

010

VOLUME

ZONE 3

MONITOR

456

ZONE 1 ZONE 2

ZONE 4

VOLUME

MONITOR

456

VOLUME

MONITOR

456

VOLUME

MONITOR

456

OFF

POWER

POWER INPUT:

110-240V~50/60Hz

110-120V~60Hz - FUSE: T6.3A 250V

220-240V~50/60Hz - FUSE: T3.15A 250V

110-120V~ 220-240V~

SERIAL NUMBER

MONITOR

LINE OUTPUT

G +

MONITOR

1W 8Ω

PRIORITY

– +

TEL PAGING

TEL

VOLUME

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 1

ZONE

COM GNDHOT

CH4

LINE

CH3

PHANTOM

LINE MIC

CH2

CH1

CH5

LINE

PHANTOM

LINE MIC

G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 2 G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 3 G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 4 G – +

456

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK.

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN. NO USER

SERVICABLE PARTS INSIDE

www.cleveracoustics.co.uk

PHANTOM

LINE MIC

POWER CONSUMPTION (max.): 180W

GAIN

16 17 18 25 26 27 28 29

19 20 21 22 23 24 26 27

MA 4040 Mixer Amplier

VOL

MUTE

CH 1

456

-10 +10

VOL

MUTE

CH 2

456

-10 +10

VOL

MUTE

CH 3

456

-10 +10

VOL

MUTE

CH 4

456

-10 +10

VOL

MUTE

CH 5

-10 +10

010

PHONE

VOLUME

MONITOR

VOLUME

010

VOLUME

ZONE 3

MONITOR

456

ZONE 1 ZONE 2

ZONE 4

VOLUME

MONITOR

456

VOLUME

MONITOR

456

VOLUME

MONITOR

456

OFF

POWER

POWER INPUT:

110-240V~50/60Hz

110-120V~60Hz - FUSE: T6.3A 250V

220-240V~50/60Hz - FUSE: T3.15A 250V

110-120V~ 220-240V~

SERIAL NUMBER

MONITOR

LINE OUTPUT

G +

MONITOR

1W 8Ω

PRIORITY

– +

TEL PAGING

TEL

VOLUME

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 1

ZONE

COM GNDHOT

CH4

LINE

CH3

PHANTOM

LINE MIC

CH2

CH1

CH5

LINE

PHANTOM

LINE MIC

G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 2 G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 3 G – +

LINE OUT - BAL/UNBAL POWER AMP OUTPUT

COM 4Ω 8Ω 25V 70V 100VZONE 4 G – +

456

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK.

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN. NO USER

SERVICABLE PARTS INSIDE

www.cleveracoustics.co.uk

PHANTOM

LINE MIC

POWER CONSUMPTION (max.): 180W

GAIN

71 2 3 6 9 11 13 15

810 10 12 144 5

www.cleveracoustics.co.uk MA 4040 160W Mixer Amplier User Manual 5

Layout identication:

1. Gain control:

Thegaincontrolisusedtoadjusttheinputgain(level)foreachofthezonemixersinputchannels.Turn

thelevelcontrolanticlockwisetothelowestsetting,orturnclockwisetoadjusttothehighestsetting.

Adjustmentsshouldbemadegraduallytoavoidanysuddenchangestotheaudiooutput.Iftheaudio

sourceappearstosounddistorted,areductioningainmayberequired.

2. HF level control:

Duringinitialsetupthehighfrequencytoneadjustmentshouldbesettothezeropoint(12’o’clock

position).Turnthelevelcontrolanticlockwisetoreducethehighfrequencytones,orturnclockwise

toadjusttheincreasethehighfrequencytones.Adjustmentsshouldbemadegraduallytoavoidany

suddenchangestotheaudiooutput.

3. LF level control:

Duringinitialsetupthelowfrequencytoneadjustmentshouldbesettothezeropoint(12’o’clock

position).Turnthelevelcontrolanticlockwisetoreducethelowfrequencytones,orturnclockwise

toadjusttheincreasethehighfrequencytones.Adjustmentsshouldbemadegraduallytoavoidany

suddenchangestotheaudiooutput.

4. Mute switch:

Pressthemuteswitchtomute(silence)theselectedinputchannel.

5. Mute LED:

ThemuteLEDprovidesavisualindicationwhentheinputchannelisinmutestatus.

6. Input channel level control:

Thegaincontrolisusedtoadjusttheinputgain(level)foreachofthezonemixersinputchannels.Turn

thelevelcontrolanticlockwisetothelowestsetting,orturnclockwisetoadjusttothehighestsetting.

Adjustmentsshouldbemadegraduallytoavoidanysuddenchangestotheaudiooutput.Iftheaudio

sourceappearstosounddistorted,areductioningainmayberequired.Theinputchannellevelcontrol

adjuststheleveloftheselectedinputchannelwithinthemainmix.

7. Zone selection switches:

Eachoftheveinputchannelsmayberoutedtoanyofthefouroutputzones.

PresstheswitchtotheINpositiontoroutetheselectedinputchanneltothechosenoutputzone.

8. Headphone level control:

Theheadphoneoutputvolumeisadjustable.Turnthelevelcontrolanticlockwisetothelowestsetting,

orturnclockwisetoadjusttothehighestsetting.

9. Headphone output:

Utilisingastandard3.5mmstereojacksocket,theheadphoneoutputisusedalongsidethemonitor

functiontochecktheoutputofindividualoutputzones.Ifnoneoftheoutputzonesareselectedusing

themonitorselectionswitches,theheadphoneoutputwillbemuted.

Operating instructions

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Operating instructions

10. LED VU output meter:

Theoutputtoeachzonemaybemonitoredvisuallyontheamplier.TheVUmeterhasthreegreen

stages,followedbyamberandthenred.Careshouldbetakentoavoidthesignallevelreachingthe

amberorredzonesasthiswillindicateaclippedsignalwithinthezonemixer.Inthisinstance,theInput

Channeland/orZoneOutputLevelshouldbereduced.

11. Monitor level control:

Themonitoroutputvolumeisadjustable.Turnthelevelcontrolanticlockwisetothelowestsetting,

orturnclockwisetoadjusttothehighestsetting.Thisisusedtocontrolthevolumeforthe1W8Ω

loudspeakeroutputontherearpanelofthezonemixer.

12. Zone output level control:

Themastervolumecontrolaffectsallaudiosourceswithintheamplier,routedtotheselectedzone.

Turnthelevelcontrolanticlockwisetothelowestsetting,orturnclockwisetoadjusttheoveralloutput

tothehighestsetting.Adjustmentsshouldbemadegraduallytoavoidanysuddenchangestotheaudio

output.

13. Monitor output selector:

Torouteoneoftheoutputzonestothemonitor&headphoneoutputs,presstheMonitorselection

button.ThemonitoroutputvolumecanthenbeadjustedusingtheMonitorVolumeControl.

14. Power LED:

ThePowerLEDwillilluminatetoindicatethezonemixerispoweredon.IfthepowerLEDisnot

illuminated,checkrstthepositionoftheon/offswitchandthencheckthemains(includingfuse)orDC

powersupply.

15. Power switch:

On/Offcontrolforthezoneamplier.Note:Theon/offpowerswitchdoesnothaveanycontroloverthe

24VDCpowerinput.

16. Cooling fan:

TheMA4040isfancooled.Thecoolingfanwillstartwhentheinternaltemperaturesensorreaches

50°C.Thefanspeedwillvaryaccordingtotheinternaltemperatureoftheamplier.Donotblockor

obstructthefanportontherearpanelortheairventsonthetoporsidepanels.

17. AC mains power input:

Beforeconnectingtheampliertothelocalmainsvoltageoutletshouldbecheckedtoensurethe

availablesupplyis240V~AC50Hz.ThisproductisCLASS1andrequiresaprotectivemainsearthtobe

connectedatalltimes.DONOTremoveordisconnecttheearth.

18. AC mains fuse:

Disconnectfromthemainspowersupplybeforeattemptingtoreplacethemainsfuse.Replacement

mainsfusesmustbethesameratingastheoriginal.T3.15AL250Vfor220-240VACmainssupplyor

T6.3AL250Vfor110-120VACmainssupply.

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Operating instructions

19. AC voltage selector:

TheMA4040zonemixerfeaturesadualvoltagemainsinput.Disconnecttheunitfromthemains

voltagepowersupplybeforeattemptingtochangethemainsinputvoltage.Careshouldbetakento

selecttheappropriatemainsinputvoltagetomatchthatofthemainssupplyvoltage.

20. Monitor (MIX) line output:

Themonitorlineoutputcanbeusedtofeedexternalamplicationorrecordingequipment.TheMonitor

lineoutputprovidesanunbalanced(4V)signalfollowingthefrontpanel“monitor”selection.Ifseveral

zonesareselected,theoutputwillbeamixedsignalofalltheselectedzones.

21. Monitor loudspeaker output (1W 8Ω):

Auxiliaryconnectionfortheconnectionofasmallexternalloudspeakerforlocalmonitoringpurposes.

Thenominaloutputis1Wwithaminimumimpedanceof8Ω.Ifnoneoftheoutputzonesareselected

usingthemonitorselectionswitches,theheadphoneoutputwillbemuted.

22. Priority control terminals (Music Mute):

Whentheterminalsareshort-circuitedbymeansofaswitchorrelay(ierealarmpanel),input

channelsCH4andCH5willbemuted,leavinginputchannelsCH1,CH2andCH3withprioritystatus.

Note:TheTELinputcarrieshighestpriorityandwilloverridethePriority(MusicMute)function.

23. Telephone/paging input (TEL):

Foremergencypaging,theMA4040isequippedwithabalancedaudioTELinput,activated

automaticallyupontheMA4040detectinganaudiosignalpresentontheTELinputterminals.The

inputcarriesthehighestpriorityandwilloverrideallotherinputs&priorityfunctionsontheamplier.

24. Telephone/paging input zone selection & volume control:

TheTELinputfeatureszonecontrolandinputvolumecontrol.ToroutetheTELsignaltoadesired

outputzone,movethecorrespondingDIPswitchtothedown(ON)position.Theinputvolumeforthe

TELsignalmaybecontrolledbytherecessedvolumecontrolpotentiometer.Formostapplications,it

maybebestpracticetosettheminimumpossibleleveltopreventunwantedactivationofthepriority

input.Turnthepotentiometerclockwisetoincreasethevolume.

25. Stereo LINE inputs:

AstereoaudioinputisprovidedforsourcessuchasFMTuners,CDPlayersorMP3Players.Theinput

featuresapairofunbalancedphono(RCA)inputssuitableforlinelevelaudioinput.

26. Mono MIC/LINE inputs:

Channels1,2&3allfeaturemonoaudioinputs,eachwithselectorforusewithMIC/MIC+Phantom/

Linesignals.TheaudioinputisdesignedtoacceptabalancedaudiosignalviaXLRor6.35mm(¼”)

TRSjack.

Channel1featuresautomaticpriorityoverrideoverchannels2,3and4.Ifthisfeatureisnotrequired,

theusermustrefertoaservicetechnicianwhowillbeabletofollowtheinstructionsonpage9to

defeatthevoicepriorityfunction.

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Operating instructions

27. Input sensitivity and phantom power control:

Channels1,2,3&4eachfeatureswitchableinputsforusewithMIC/MIC+Phantom/Linesignals.The

MICposititionisdesignedtoacceptabalanced,lowlevelsignalfromastandarddynamicmicrophone

(5mV/1kΩ).ThePHANTOMpositionisdesignedtoprovide15VphantompoweracrossXLRpins2&3

forusewithcondensermicrophones.TheLINEpositionisforusewithlinelevelsourcessuchasradio

microphonereceivers,CDplayersandFMtuners(100mV/10kΩ),thesignalmaybeinputtedusing

eitherthebalancedXLRorbalancedTRS6.35mm(¼”)jack.

28. Balanced line level zone outputs:

TheMA4040featuresfour,independentzoneoutputseachutilisingbarrierstripterminalsforthe

balancedaudiooutput(1.7V).Thelineleveloutputsmaybeusedtofeedsignaltoexternalamplication

whereadditionalamplicationisrequired.Iftheamplierconnectedonlyrequiresanunbalancedsignal,

theoutputcontacts“+”and“G”shouldbeused.

29. Power amplier outputs:

EachofthefouroutputzonesontheMA4040featuresbothlowimpedanceandconstantvoltage

loudspeakeroutputs.Eachoutputzonemaybeusedtooutputintoeitherlowimpedance(4-8Ω)or

constantvoltage(25V,70V,100V).Donotusemorethanonepairofoutputterminalsonanyone

outputzone.Careshouldbetakenwhenconnectingtotheoutputstoensuretheloadimpedanceis

abovetheminimumloadspeciedfortheoutput.

Power on/off procedure:

Priortomakinganyconnectiontothemainspoweroraudioinputs/outputs,turnalllevelcontrols

counterclockwisetothe“0”positionandalltone(equaliser)controlstothemid(zero)point.Deselect

allmonitorandzoneselectioncontrols.

Switchonthezonemixerandanyaudiosources(MP3players,CDplayers,Microphonesetc)before

poweringthesystemsamplierON.Thelastproducttobeswitchedonshouldbethepower/slave

amplierstopreventanyunwantednoiseorpotentialdamagetospeakersorampliers.Ifyouwish

topoweroffthesystem,turntheamplier’smastervolumecontrolcounterclockwisetothe“0”

positionbeforeswitchingtheamplierOFFbeforeanyaudiosourcesareswitchedoff.Byfollowingthis

procedureitwillpreventacousticshockstothespeakersorpotentialdamagetosystemcomponents.

Afterconnectingallaudiosourcesandpoweringonthesystem,adjustthelevelofeachaudioinput,

selectthezoneroutinginordertoachievethedesired“mix”foreachzone.Careshouldbetaken

towhenadjustingmicrophoneinputvolumesandthemastervolume,adjustbothoftheseinsmall

increment’stoavoidfeedback(howlaround).Thegoalistoachieveaclearbalancebetweenmusicand

voiceensuringannouncementscanbeclearlyheard.

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Operating instructions

MIC priority:

DuringnormaloperationtheMA4040featurespriorityforMIC1overtheothermicrophoneandline

inputs.Forcertainapplications,theinstallationengineermayneedtodefeattheMIC1priorityfunction.

Inordertodothis,theproductmustbefullydisconnectedfromanyACorDCpowersources,and

disconnectedfromallinputs/outputs.

Removethe15screwsfromtheoutercasingasperthediagrambelowandkeepinasafelocation.

Removetheuppercasingandplacetooneside.LocatethePCBtowardstherearoftheunitaspictured

below.Carefullymovethejumperfromthe"ON"positiontothe"OFF"position.Rettheoutercasing,

takingcaretoavoiddamagingtheunit.Retallofthescrewstofullysecuretheoutercasing.

TopofMixer

RearofMixer

Side1of

Mixer

Side2of

Mixer

www.cleveracoustics.co.uk MA 4040 160W Mixer Amplier User Manual 10

Typical panel connections

C ontact

"V O IC E P R IO R

Mains

Recorder

PAAmplier

Recorder

CDPlayer

AM/FMTuner

DesktopMic

Microphone

Monitor

Speaker

Amplier

Contact

“VoicePriority”

Horn

speaker

Column

speaker

Speaker

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