ma 120 100v 20w mixer amplifier - farnell element14 · ma 120 mixer amplifier use manual 2 safety...
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MA 120 100V 20W Mixer Amplifier
User Manual
Order code: CRAM30
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MA 120 Mixer Amplier
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POWER
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OFFLOW HIGH
OUTPUTS
FUSE:T500mA 250V
POWER INPUT:240V~50Hz
LINE 2 LINE 1 LINE 2
LINE 1
www.cleveracoustics.co.uk
DC 12V 2.5A+
SERIAL NUMBER
COM 4Ω 8Ω 16Ω 100V
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPEN. NO USER
SERVICABLE PARTS INSIDE
POWER CONSUMPTION: 22W (max.)
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 2
Safety advice
WARNINGFOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL CAREFULLY BEFORE YOUR INITIAL START-UP!• Beforeyourinitialstart-up,pleasemakesurethatthereisnodamagecausedduringtransportation.
• Shouldtherebeanydamage,consultyourdealeranddonotusetheequipment.
• Tomaintaintheequipmentingoodworkingconditionandtoensuresafeoperation,itisnecessaryfortheusertofollowthesafetyinstructionsandwarningnoteswritteninthismanual.
• Pleasenotethatdamagescausedbyusermodificationstothisequipmentarenotsubjecttowarranty.
IMPORTANT:The manufacturer will not accept liability for any resulting damages caused by the non-observance of this manual or any unauthorised modification to the equipment.
OPERATING DETERMINATIONSIfthisequipmentisoperatedinanyotherway,thanthosedescribedinthismanual,theproductmaysufferdamageandthewarrantybecomesvoid.Incorrectoperationmayleadtodangere.g:short-circuit,burnsandelectricshocksetc.
Donotendangeryourownsafetyandthesafetyofothers!
Incorrectinstallationorusecancauseseriousdamagetopeopleand/orproperty.
• Neverletthepowercablecomeintocontactwithothercables.Handlethepowercableandallmainsvoltageconnectionswithparticularcaution!
• Neverremovewarningorinformativelabelsfromtheunit.
• Donotopentheequipmentanddonotmodifytheunit.
• Donotswitchtheequipmentonandoffinshortintervals,asthiswillreducethesystem’slife.
• Onlyusetheequipmentindoors.
• Donotexposetoflammablesources,liquidsorgases.
• Alwaysdisconnectthepowerfromthemainswhenequipmentisnotinuseorbeforecleaning!Onlyhandlethepower-cablebytheplug.Neverpullouttheplugbypullingthepower-cable.
• Makesurethattheavailablevoltageis240V,50HzACor12VDC.
• Makesurethatthepowercableisnevercrimpedordamaged.Checktheequipmentandthepowercableperiodically.
• Iftheequipmentisdroppedordamaged,disconnectthemainspowersupplyimmediatelyandhaveaqualifiedengineerinspecttheequipmentbeforeoperatingagain.
• Iftheequipmenthasbeenexposedtodrastictemperaturefluctuation(e.g.aftertransportation),donotconnectpowerorswitchitonimmediately.Thearisingcondensationmightdamagetheequipment.Leavetheequipmentswitchedoffuntilithasreachedroomtemperature.
• Ifyourproductfailstofunctioncorrectly,stopuseimmediately.Packtheunitsecurely(preferablyintheoriginalpackingmaterial),andreturnittoyourProlightdealerforservice.
• Onlyusefusesofsametypeandrating.
• Repairs,servicingandpowerconnectionmustonlybecarriedoutbyaqualifiedtechnician.THISUNITCONTAINSNOUSERSERVICEABLEPARTS.
• WARRANTY:Threeyearsfromdateofpurchase.
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 120 Mixer Amplifier User Manual 3
Product overview & technical specifications
Acompact,desktopmixeramplifiersuitableforsmalloffices,retailspacesandgarageforecourts.The12VDCinputallowstheamplifiertobepoweredfromDCpowerbackupsourcesoralternativelyfromleisuretypebatteriesforsoundreinforcementinremotelocationsawayfrommainspower.
•100Vandlowimpedance4-16Ωloudspeakeroutput
•Twounbalancedmicrophoneinputsvia6.35mm(¼”jack)eachwithindependentlevelcontrols
•Phono-RIAA/LINEinputs(switchable)withlevelcontrol
•Mastertonecontrol
•Mastervolumecontrol
•Screwterminalloudspeakeroutputswithtouchproofcover
•Captivepowerconnection
•Convectioncooledforsilentoperation
MA 120 100V 20W Mixer Amplifier
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MA 120 Mixer Amplier
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LINE 1/LINE 2
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TONE
MASTER VOLUME
POWER
ON
OFFLOW HIGH
OUTPUTS
FUSE:T500mA 250V
POWER INPUT:240V~50Hz
LINE 2 LINE 1 LINE 2
LINE 1
www.cleveracoustics.co.uk
DC 12V 2.5A+
SERIAL NUMBER
COM 4Ω 8Ω 16Ω 100V
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPEN. NO USER
SERVICABLE PARTS INSIDE
POWER CONSUMPTION: 22W (max.)
Specifications MA 120 Mixer Amplifier
Poweroutput 20Wrms(40Wpeak)
Speakeroutput 100V&4-16Ω
Microphonesensitivity -48dB(±2dB)
Auxinputsensitivity -12dB(±2dB)
Frequencyresponse 100Hz-13kHz(±3dB)
Tonecontrol ±10dB
S/Nratio >55dB
THD <1%(@1kHz1Woutput)
Powerconsumption 22W(max.)
Powersupply 240VAC50Hz/12VDC(2.5A)
Fuse T500mA250V
Dimensions 84x320x235mm
Weight 4.2kg
Ordercode CRAM30
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84mm
320mm
235mm
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 4
Panel & connection identification
01-Poweron/offswitch
02-PowerLED
03-Mastervolumecontrol
04-Tonecontrol
05-LINE1/LINE2levelcontrol
06-MIC1levelcontrol
07-MIC2levelcontrol
08-MIC1input
09-MIC2input
10-Fuse:T500mA250V
11-Captivepowerconnection
12-DCpowerinputterminals
13-Loudspeakeroutputterminals
14-LINE1/LINE2selectorswitch
15-LINE1inputRCAconnectors-LINELevel
16-LINE2inputRCAconnectors-RIAAforTurntableConnection
17-Groundconnection
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MASTER VOLUME
POWER
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OUTPUTS
FUSE:T500mA 250V
POWER INPUT:240V~50Hz
LINE 2 LINE 1 LINE 2
LINE 1
www.cleveracoustics.co.uk
DC 12V 2.5A+
SERIAL NUMBER
COM 4Ω 8Ω 16Ω 100V
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPEN. NO USER
SERVICABLE PARTS INSIDE
POWER CONSUMPTION: 22W (max.)
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MASTER VOLUME
POWER
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OFFLOW HIGH
OUTPUTS
FUSE:T500mA 250V
POWER INPUT:240V~50Hz
LINE 2 LINE 1 LINE 2
LINE 1
www.cleveracoustics.co.uk
DC 12V 2.5A+
SERIAL NUMBER
COM 4Ω 8Ω 16Ω 100V
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPEN. NO USER
SERVICABLE PARTS INSIDE
POWER CONSUMPTION: 22W (max.)
11 1312 14 16
17 1510
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 5
Mains voltage supply: Beforeconnectingtheamplifiertothelocalmainsvoltageoutletshouldbecheckedtoensuretheavailablesupplyis240V~AC50Hz.ThisproductisCLASS1andrequiresaprotectivemainsearthtobeconnectedatalltimes.DO NOTremoveordisconnecttheearth.
Power on/off procedure: Afterconnectingyouramplifiertothemains,turnallcontrolscounterclockwisetothe“0”position.Turnonaudiosources(MP3players,CDplayers,microphonesetc)beforepoweringtheamplifier“ON”.Thelastproducttobeswitchedonistheamplifier.Ifyouwishtopoweroffthesystem,turntheamplifier’smastervolumecontrolcounterclockwisetothe“0”positionbeforeswitchingtheamplifier“OFF”beforeanyaudiosourcesareswitchedoff.Byfollowingthisprocedureitwillpreventacousticshockstothespeakersorpotentialdamagetosystemcomponents.
Afterconnectingallaudiosourcesandpoweringonthemixeramplifier,adjustthelevelofeachaudioinputtoachievethedesired“mix”.Careshouldbetakentowhenadjustingmicrophoneinputvolumesandthemastervolume,adjustbothoftheseinsmallincrement’stoavoidfeedback(howlaround).Thegoalistoachieveaclearbalancebetweenmusicandvoiceensuringannouncementscanbeclearlyheard.
DC power connection: TheMA120featuresa12VDCpowerinputforoperationfromleisuretypebatteriesorfrombatteryDCbackupsources.Theamplifiershouldbeconnectedtoafused,12VDCsourceviatheDCpowerinputterminals(11)ensuringcareistakentoobservethecorrectpolarity.TheamplifierwillautomaticallytransfertoDCoperationshouldthemain240Vinputfail.Thetransferisinstantaneousandsilent.Please note:Thepoweron/offswitchdoesnothaveanycontroloverthe12VDCpowerinput.
Master volume control:
Themastervolumecontrolaffectsthelevelofallaudiosourceswithintheamplifier.Turnthelevelcontrolanti-clockwisetothelowestsetting,orturnclockwisetoadjusttheoveralloutputtothehighestsetting.Adjustmentsshouldbemadegraduallytoavoidanysuddenchangestotheaudiooutput.
Operating instructions
DC12V Battery
12VDCinput
– COM 8Ω+ 4Ω 16Ω 100V
FUSE
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 6
Tone control:
Thetonecontrolcanbeusedtoadjusttheoverallsoundfromtheamplifier.Turnanti-clockwiseformorebass,orturnclockwiseformoremid&treble.
Microphone inputs:
Twolowimpedancemicrophoneinputsareprovided,eachlocatedonthefrontpanelviaanunbalanced,6.35mm(¼”)jack.Eachmicrophoneinputfeaturesitsownindependentlevelcontrol.Beforeconnectingamicrophone,turnthelevelcontrolanticlockwisetothelowestsetting.Afterconnection,graduallyincreasethelevelcontrolbyturningclockwiseuntilthedesiredlevelisachieved.
Note:Unbalancedcablelengthsshouldbekepttotheminimumlengthpossible,ideallyunder20mandawayfromanypotentialsourcesofinterferenceincludingpower,speakerandcontrolcables/equipment.
Line inputs:
Theamplifierfeaturestwoaudioinputslocatedontherearpanel,eachinputfeaturesamonoRCA(phono)inputconnector.TheLINE1inputisdesignedforlinelevelsources(150mV)suchasCDplayersorMP3players.TheLINE2inputisdesignedforRIAAlevelsourcessuchasTurntables.A“Y”cablemayberequiredtocombineLeftandRightoutputsfromstereosources.
Note:Onlyoneofthetwoinputsmaybeusedatanyonetime,theselectorswitchmaybeusedtochoosefromthetwoinputs.SlidetheswitchtothelefttoselectLINE2orslidetotherighttoLINE1.
Output connections:
Theamplifiermaybeusedtodriveeitherlowimpedance(4/8/16Ω)loadsor100Vlineconstantvoltageloads,onlyoneoutputmaybeused,theamplifierisnotdesignedtodrivemultipleloadssimultaneously.
Operating instructions
MIC
Unbalancedmicrophone Singlepolephoneplug
3mV
Selectorswitch
LINE2 LINE2LINE1
LINE1
150mV
RIAA
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 7
Low impedance:
Theamplifierhasbeendesignedtodriveintoloadsbetween4Ωand16Ω.Theappropriateoutputterminalshouldbeselectedtomatchtheimpedanceofthespeakerstobeconnected.Wheninstallinglowimpedancespeakersystems,thecablelengthsshouldbekepttoaminimumtohelppreventvoltagedropwithinthecable.DO NOTconnectaspeakerloadtotheamplifiersoutputterminalsoflowerimpedancethanismarkedontheoutputterminals.
100V Line:
Forlongercableruns,theamplifiermaybeusedtodrive100Vloudspeakersystemsreducinglosseswithinthecable.Connectthe100Vlinelevelloudspeakersusingaparallelwiringconfigurationtakingcaretoensuretheloadconnectedtotheamplifieriswithin85%oftheamplifiersratedwattagetoleaveappropriateheadroom.CareshouldbetakentocheckthewiringandloadforshortcircuitsbeforeconnectingthecabletotheCOMand100Vterminalsontherearpanel.
Operating instructions
COM 4Ω 8Ω 16Ω 100V
100V 100V 100V 100V
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COM 4Ω 8Ω 16Ω 100V
Totalimpedance:4Ω
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COM 4Ω 8Ω 16Ω 100V
Totalimpedance:8Ω
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COM 4Ω 8Ω 16Ω 100V
Totalimpedance:16Ω
8Ω
8Ω
8Ω
8Ω
8Ω
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 8
Typical panel connections
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MIC 2
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LINE 1/LINE 2
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TONE
MASTER VOLUME
POWER
ON
OFFLOW HIGH
OUTPUTS
FUSE:T500mA 250V
POWER INPUT:240V~50Hz
LINE 2 LINE 1 LINE 2
LINE 1
www.cleveracoustics.co.uk
DC 12V 2.5A+
SERIAL NUMBER
COM 4Ω 8Ω 16Ω 100V
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPEN. NO USER
SERVICABLE PARTS INSIDE
POWER CONSUMPTION: 22W (max.)MIC1 MIC20
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MASTER VOLUME
POWER
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OFFLOW HIGH
OUTPUTS
FUSE:T500mA 250V
POWER INPUT:240V~50Hz
LINE 2 LINE 1 LINE 2
LINE 1
www.cleveracoustics.co.uk
DC 12V 2.5A+
SERIAL NUMBER
COM 4Ω 8Ω 16Ω 100V
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPEN. NO USER
SERVICABLE PARTS INSIDE
POWER CONSUMPTION: 22W (max.)
MAINS
CDPLAYER
LOUDSPEAKERS
TURNTABLE
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 9
Schematics
VR
3A
50K
R31
18K
C33
100U
/16V
C35
100U
/16V
C32
.47U
/50V
C36
.47U
/50V
R32
2.2K
R33
2.2K
R29
5.6K
R28
1M
VR
4A
20K
C34
220P
C37
(MC
).033
UQ
5C
1815
VR
5B
50K
1234
CN
2
R30 1K
D1
4148
D2
4148
C38
220P
C39
100P
C40
(MC
).1U
C18
(MC
).1U
C19
(MC
).1U
C20
(CC
).1U
C11
2.2U
/50V
C12
2.2U
/50V
C13
2.2U
/50V
C14
4.7U
/50V
C17
100U
/16V
C15
100U
/16V
C16
2.2U
/50V
R11 560
R12
180K
R13
1.5K
R15
1W/1
R14
470
R16
4.7K
OPT
AU
X
PHO
NO
R9
20K
R3
680
R10
3.3K
R4
2.7K
R1
100K
R5
47K
R6
1.8K
R7
56K
R2
330
R8
2.2K
R17 470
R18
1W/1
KR
191.
5K
C10
.001
U
C3
220P
C5
(MC
).047
U
C7
68P
C6
(MC
).022
U
C1
.001
U
C23
(MC
).047
UC
210
U/1
6V
C4
10U
/16V
C8
.47U
/50V
C9
100U
/16V
C21
220U
/25V
C22
4700
U/5
0V
Q2
C18
15
Q1
C18
15
POW
-SW
FUSE
1A/2
50V
PTA
C 2
40V
50H
Z 35
W
D3
3ALE
DC
N3
AC
1
AC
2
+3
-4
B1
BR
106
S1
1234
CN
1
CO
M
4 O
HM
8 O
HM
16 O
HM
100V
CN
6O
T IN
1 2
12
CN
4C
N5
DC
IN 1
2VP
T IN
VOL-
PCB
POW
PC
B
AC
15.5
V
1 2
+ -
KIA
6280
HU
1R
3427
0
!!
!
!
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 10
WEEE notice
Correct Disposal of this Product (Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European countries with separate collection systems)
Thismarkingshownontheproductoritsliterature,indicatesthatitshouldnotbedisposedwithotherhouseholdwastesattheendofitsworkinglife.Topreventpossibleharmtotheenvironmentorhumanhealthfromuncontrolledwastedisposal,pleaseseparatethisfromothertypesofwastesandrecycleitresponsiblytopromotethesustainablereuseofmaterialresources.
Householdusersshouldcontacteithertheretailerwheretheypurchasedthisproduct,ortheirlocalgovernmentoffice,fordetailsofwhereandhowtheycantakethisitemforenvironmentallysaferecycling.
Businessusersshouldcontacttheirsupplierandcheckthetermsandconditionsofthepurchasecontract.Thisproductshouldnotbemixedwithothercommercialwastesfordisposal.
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 11
www.cleveracoustics.co.uk MA 120 Mixer Amplifier User Manual 12