Clever Acoustics CRAM37-SL 4060 100V 4 x 60W User manual

SL Slave Ampliers
User Manual
Order codes:
CRAM37 - SL 4060 100V 4 x 60W
CRAM22 - SL 4120 100V 4 x 120W
CRAM23 - SL 4240 100V 4 x 240W

www.cleveracoustics.co.uk SL Slave Ampliers 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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 SL Slave Ampliers User Manual
3
Product overview & technical specications
ThisSLseriesslave
amplierfromClever
Acousticsboastsanumber
ofusefulfeaturesand
solidperformance.
Thesefourchannelpower
ampliersareideally
suitedtocommercialand
industrialpublicaddress
applications.
Thefourindividual
ampliersarecombined
inachassisofonly2or3
rackunits.
•Fourseparateamplifiers
inasingle19”rack
mountchassis
•70V,100Vand4-16Ω
loudspeakeroutputs
•BalancedXLRlineinput
foreachchannel
•Convenientphoenixtype
terminalblockoutput
connectors
•Temperature,over-load,
clipandshortcircuit
protection
•Power,signal,clip,
protectionandover
temperatureLEDs
•Fancooled
SL Slave Ampliers
SL 4240
SL 4060
SL 4120
Specications SL 4060 SL 4120 SL 4240
Poweroutput 4x60Wrms 4x120Wrms 4x240Wrms
Speakeroutput 70V,100V&4-16Ω 70V,100V&4-16Ω 70V,100V&4-16Ω
Frequencyresponse 50Hz-16kHz 50Hz-16kHz 50Hz-16kHz
Powersupply 240VAC50Hz 240VAC50Hz 240VAC50Hz
Powerconsumption 400W 720W 1500W
Dimensions 88x484x448mm 88x484x448mm 132x484x449mm
Weight 16kg 22kg 30kg
Ordercode CRAM37 CRAM22 CRAM23
SL 4060 Slave Amplier
CH 2
0
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
10
CH 1
0
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
10
CH 4
0
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
10
CH 3
0
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
10
I
O
TEMP
POWER
ON
OFF
POWER
CLIP
SIGNAL
SL 4240 Slave Amplier
CH 2
0
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
10
CH 1
0
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
10
CH 4
0
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
10
CH 3
0
1
2
3
456
7
8
9
100
1
2
3
456
7
8
9
10
I
O
TEMP
POWER
ON
OFF
POWER
CLIP
SIGNAL
88mm 132mm
484mm
484mm
449mm
449mm
SL 4240
SL 4060 & SL 4120

www.cleveracoustics.co.uk SL Slave Ampliers User Manual
4
Panel & connection identication
01-PowerLED
02-TEMPLED
03-PROTLED
04-CLIPLED
05-SIGNALLED
06-Fanvent
07-On/offpowerswitch
08-CH1volumecontrol
09-CH2volumecontrol
10-CH3volumecontrol
11-CH4volumecontrol
12-Carryhandles
13-Fanvent
14-Powerinput
15-Mainsfuse
16-CH1loudspeakeroutputterminals
17-CH2loudspeakeroutputterminals
18-CH3loudspeakeroutputterminals
19-CH4loudspeakeroutputterminals
20-CH1XLRsignalinput
21-CH2XLRsignalinput
22-CH3XLRsignalinput
23-CH4XLRsignalinput
Layout identication:
POWER
TEMP
ON
OFF
5
0
1
2
3
4 6
7
8
9
10
5
0
1
2
3
4 6
7
8
9
10
5
0
1
2
3
4 6
7
8
9
10
5
0
1
2
3
4 6
7
8
9
10
CH1CH2CH3CH4
PROTECT
SIGNAL
CLIP
4-CHANNEL AMPLIFIER
16 62 3 4 5
12 12111087 9
12
3
12
3
12
3
12
3
1
2
3
XLR BAL
INPUT
1-GND
2-HOT+
3-COLD-
~230V 50Hz
T12AL 250V
CH 1 IN CH 2 IN
CH 3 IN CH 4 IN
70V
C O M
4
100V
70V
COM
4
100V
70V
COM
4
100V
CH 1 OU T
CH 3 OU T
CH 2 OU T
CH 4 OU T
70V
COM
4
100V
www.prolight.co.uk
13
14 15 16 18 17 19 20 22 21 23
SL 4240
POWER
TEMP
ON
OFF
5
0
1
2
3
4 6
7
8
9
10
CH1
5
0
1
2
3
4 6
7
8
9
10
CH2
5
0
1
2
3
4 6
7
8
9
10
CH3
5
0
1
2
3
4 6
7
8
9
10
CH4
PROTECT
SIGNAL
CLIP
4-CHANNEL AMPLIFIER
16
12 121110
62 3
87
4
9
5
12
3
12
3
12
3
12
3
CH 1 OUT CH 2 OUT
CH 3 OUT CH 4 OUT
CH 1 IN
www.prolight.co.uk
CH 2 IN
CH 3 IN CH 4 IN
COM
100V
4
70V
COM
100V
4
70V
COM
100V
4
70V
C OM
100V
4
70V
XLR BAL
INPUT
1-GND
2-HOT+
3-COLD-
~230V 50Hz 720W
T8AL 250V
1313
14 15 16 18 17 19 20 22 21 23
SL 4060
& SL 4120

www.cleveracoustics.co.uk SL Slave Ampliers User Manual
5
Panel & connection identication
Layout identication:
1. Power LED:
ThisLEDwillilluminateoncetheamplier
isswitchedonandisreadyforuse.
2. TEMP LED:
TemperatureLEDwillilluminatewhenoverheating.
Switchofftheamplierandleavetocooldown.
3. PROT LED:
ThisLEDwillilluminatewhentheunitgoesinto
protectmode.Switchofftheamplierandcheck
theoutputconnectionsforfaultsorshortcircuits
beforepoweringonandresumingoperation.
4. Clip LED:
ThisLEDwillashwhentheoutputsignalstarts
todistort.Atthispointturnthemastervolume
anti-clockwisetopreventdamage.
5. Signal LED:
ThisLEDwilllightupwhensignal
isbeingreceived.
6. Fan vent:
Donotobstruct,keepclearofdust.
7. ON/OFF power switch:
Usetheswitchtopowertheunitonoroff.
8. CH1 volume control:
Usethiscontroltoincreaseordecrease
thevolumeofchannel1.
9. CH2 volume control:
Usethiscontroltoincreaseordecrease
thevolumeofchannel2.
10. CH3 volume control:
Usethiscontroltoincreaseordecrease
thevolumeofchannel3.
11. CH4 volume control:
Usethiscontroltoincreaseordecrease
thevolumeofchannel4.
12. Carry handles:
12.Carryhandles
13. Fan vent:
Donotobstruct,keepclearofdust.
14. Power input:
240V50Hz.
15. Mains fuse:
Ifthemainsfuserequiresreplacement,usethe
sametypeandvalueasoriginallysupplied.
16. CH1 loudspeaker output terminals:
Connectorsfor4-16Ωor70Vand100Vspeakers.
17. CH2 loudspeaker output terminals:
Connectorsfor4-16Ωor70Vand100Vspeakers.
18. CH3 loudspeaker output terminals:
Connectorsfor4-16Ωor70Vand100Vspeakers.
19. CH4 loudspeaker output terminals:
Connectorsfor4-16Ωor70Vand100Vspeakers.
20. CH1 XLR signal input:
Balancedlinelevelsignalinput
frommixerampliers.
21. CH12 XLR signal input:
Balancedlinelevelsignalinput
frommixerampliers.
22. CH3 XLR signal input:
Balancedlinelevelsignalinput
frommixerampliers.
23. CH4 XLR signal input:
Balancedlinelevelsignalinput
frommixerampliers.

www.cleveracoustics.co.uk SL Slave Ampliers User Manual
6
Panel & connection identication
and operating instructions
Rack installation
TheSLSeriesarerackmountable.Therackyouuseshouldbeadoubledoorrackwhereyoucanopenthefront
andrearpanel.Whenmountingtheamplierintotherack,pleasemakesurethatthereisenoughspacearound
theamplierfortheclearowofcoolairandtheexhaustofhotair.
Becarefulwhenmountingtheamplierintotherack.Puttheheaviestproductsintothelowerpartoftherack.
Beawarethatfasteningtheamplierwithfourscrewsonthefrontpanelisnotsufcienttoabsorbimpactfrom
roadtransitvibrations,additionalsupportmayberequired.
Inputs
Shortcablesrunsimprovethesoundqualityremarkably.Inputcablesshouldbeshortanddirect,sincehigh
frequencieswillmostlybeabsorbedifthecablesareunnecessarilylong.Besidesthatalongercablemaylead
tohummingandnoiseproblems.Ifthecablerunsareunavoidable,youshouldusebalancedcables.
Outputs
Thehighdampingfactorofyourampliersuppliesaclearsoundreproduction.Unnecessarilylongandthin
cablesusedforlowimpedance(4-16Ω)speakerswillinuencethedampingfactorandthusthelowfrequencies
inanegativeway.
Connect your speaker systems via the speaker terminals (COM = -VE)
Examples: 1)COM+4-16Ω
  2)COM+70V
  3)COM+100V
Note:Pleasedonotusemorethanonepairofoutputterminals
Connections To The Mains
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.
Power On/Off Procedure
Afterconnectingyourampliertothemains,turnallcontrolscounterclockwisetothe“min”position.Turnon
audiosources(MP3players,CDplayers,Microphonesetc)beforepoweringtheamplierON.Thelastproductto
beswitchedonistheamplier.
Ifyouwishtopoweroffthesystem,turntheamplier’smastervolumecontrolcounterclockwisetothe“min”
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.
Operation
1.Afterconnectingallaudiosourceandpoweringonthepoweramplier,adjusttheandthemastervolume.
2.TheCleverAcousticsamplierfeaturesoutputsignalLEDwithPEAKindication.ShouldthePEAKindicator
illuminate(ashing)theoutputoftheamplieristoohigh,turnthemastervolumeanti-clockwisetoreducethe
output.
3.TheCleverAcousticsamplierallfeaturesprotectionwithLEDindication.ShouldthePROTECTindicator
illuminate,turnthemastervolumecontrolanti-clockwisefullyandswitchofftheamplierfor15secondsasthe
ampliermayhaveenteredPROTECTmodetemporarilyduetoapeaksignal,careshouldthenbetakentoensure
allinputlevelsaresetcorrectly.IftheamplierpersiststoenterPROTECTmodetheampliershouldbeswitched
offandlefttocoolfor5-10minutesbeforeswitchingbackon.IfthePROTECTindicatorremainslitthisindicates
aproblemwiththeamplieroramplierload(ieShortCircuit).
4.Speaker&Ampliersystemscanproducehighsoundpressurelevels,pleaseoperateallcontrolswithcaution
toensurepeoplearenotexposedtoexcessiveordangeroussoundpressurelevels.

www.cleveracoustics.co.uk SL Slave Ampliers User Manual
7
Connections
12
3
12
3
12
3
12
3
CH 1 OUT CH 2 OUT
CH 3 OUT CH 4 OUT
CH 1 IN
www.prolight.co.uk
CH 2 IN
CH 3 IN CH 4 IN
COM
100V
4
70V
COM
100V
4
70V
COM
100V
4
70V
C OM
100V
4
70V
XLR BAL
INPUT
1-GND
2-HOT+
3-COLD-
~230V 50Hz 720W
T8AL 250V
1.5V/600
-
+
dB
HF
LF
PAGE
GAIN
-10
+10
dB
-10
+10
dB
LF HF
MICROPHONE 1
GAIN
-8 +8
dB
PAGING MIC1 PAGING MIC2
-+
dB
GAIN GAIN
-+
dB
LINE 1 LINE2
R
L
R
L
-+
dB
GAIN GAIN
-+
dB
LINE 3 LINE4
GAIN
-+
dB
GAIN
-+
dB -8 +8
dB
dB
-
+
dB
OUTPUT
REMOTESOURCE 1
HF
LF
0V 0V 0V 0V 0V 0V 0V 0V
11111111
++++++++
33333333
--------
22222222
PAGE
GAIN
-10
+10
dB
-10
+10
dB
-
+
dB
HF
LF
PAGE
GAIN
-10
+10
dB
-
+
dB
HF
LF
PAGE
GAIN
-10
+10
dB
-10
+10
dB
-
+
dB
HF
LF
PAGE
GAIN
-10
+10
dB
-10
+10
dB
-
+
dB
HF
LF
PAGE
GAIN
-10
+10
dB
-10
+10
dB
-
+
dB
HF
LF
PAGE
GAIN
-10
+10
dB
-10
+10
dB
-
+
dB
ZONE
8
GAINGAINGAINGAINGAINGAINGAINGAIN
HF
LF
PAGE
GAIN
-10
+10
dB
-10
+10
dB
0V0V0V0V0V0V0V0V 11111111
++++++++ 33333333
-------- 22222222
dB
-
+
dB
-
+
dB
-
+
dB
-
+
dB
-
+
dB
-
+
dB
-
+
dB
-
+
OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT
ZONE
1
R
L
R
L
ZONE
2
ZONE
3
ZONE
4
ZONE
5
ZONE
6
ZONE
7
REMOTE SOURCE 2 REMOTE SOURCE 3 REMOTE SOURCE 4 REMOTE SOURCE 5 REMOTE SOURCE 6 REMOTE SOURCE 7
195mV-2V/47K 195mV-2V/47K 5mV-300mV/680
DISABLE
ENABLE
REMOTE
WALLCONTROL
DISABLE
ENABLE
REMOTE
WALLCONTROL
DISABLE
ENABLE
REMOTE
WALLCONTROL
DISABLE
ENABLE
REMOTE
WALLCONTROL
DISABLE
ENABLE
REMOTE
WALLCONTROL
DISABLE
ENABLE
REMOTE
WALLCONTROL
DISABLE
ENABLE
REMOTE
WALLCONTROL
DISABLE
ENABLE
REMOTE
WALLCONTROL
REMOTE SOURCE 8
300mV-1.1V/10K300mV-1.1V/10K300mV-1.1V/10K300mV-1.1V/10K300mV-1.1V/10K300mV-1.1V/10K300mV-1.1V/10K300mV-1.1V/10K
MASTER SLAVE1 SLAVE2 SLAVE3
COMMON
ALE R T
EVAC GROUND EMCIN
dB
123456 7 8 G
CONTACT CLOSURE
FIREALARM
LINK IN
LINK OUT
EXTENSION LINK
dB
+
-
+
-
INPUT VOLT AGE SELECTOR
dBdBdBdBdBdBdBdB
--------
++++++++
+-G
LINE 8
MIC:5mVLINE:350mV
+-G
LINE 7
MIC:5mVLINE:350mV
+-G
LINE 6
MIC:5mVLINE:350mV
+-G
MIC MIC MIC MIC LINE LINE
LINE LINE PHANTOM PHANTOM PHANTOM PHANTOM
LINE 5
MIC:5mVLINE:350mV
EMC
INPUTOUTPUT
TONE
-10
+10
dB
775mV/10K
BATTSUPPLY
24V 2A
~120V/240V 50-60Hz
120V 240V
1234
ON
1.5V/600 1.5V/600 1.5V/600 1.5V/600 1.5V/600 1.5V/600 1.5V/600
MAINS
SLSLAVEAMPLIFIER
ZONEMIXER
Panel connections:
Speaker connections:
Notes:
• Boththe4-16Ω,70Vand100Vterminalscannotbeusedatthesametime.
• Impedancesindicatedintheguresrepresentthetotalspeakersystem(load)impedances.
Loadspresentedtotheampliermustbeequaltoorgreaterthanlistedabove.Speaker
impedancesmustbemeasuredusingatrueimpedancemeter,donotstandardmultimeters.
WARNING!
BE SURE TO ATTACH THE SUPPLIED TERMINAL COVER ATTACHED AFTER CONNECTION. BECAUSE
HIGH VOLTAGE IS APPLIED TO THE SPEAKER TERMINALS, CARE SHOULD BE TAKEN NEVER TOUCH
THESE TERMINALS TO AVOID ELECTRIC SHOCK.
ALLSPEAKERCONNECTIONSSHOULDBEMADEUSINGBAREWIREORSUITABLEINSULATEDCRIMP
TERMINALS.PLEASEENSURENOLOOSESTRANDSAREPRESENTASTHESEMAYSHORTACROSS
TERMINALSCAUSINGDAMAGETOTHEAMPLIFIER.
4-16Ω 70VLINE 100VLINE
Totalimpedance
81Ω(SL4060)
41Ω(SL4120)
20Ω(SL4240)
Totalimpedance
167Ω(SL4060)
83Ω(SL4120)
42Ω(SL4240)
COM 70V4-16Ω 100V COM 70V4-16Ω 100V COM 70V4-16Ω 100V

www.cleveracoustics.co.uk SL Slave Ampliers User Manual
8
WEEE notice
Correct Disposal of this Product
(Waste Electrical & Electronic Equipment)
(Applicable in the European Union and other European countries
with separate collection systems)
Thismarkingshownontheproductoritsliterature,indicatesthatitshouldnotbedisposed
withotherhouseholdwastesattheendofitsworkinglife.Topreventpossibleharmtothe
environmentorhumanhealthfromuncontrolledwastedisposal,pleaseseparatethisfromother
typesofwastesandrecycleitresponsiblytopromotethesustainablereuseofmaterialresources.
Householdusersshouldcontacteithertheretailerwheretheypurchasedthisproduct,ortheir
localgovernmentofce,fordetailsofwhereandhowtheycantakethisitemforenvironmentally
saferecycling.
Businessusersshouldcontacttheirsupplierandcheckthetermsandconditionsofthe
purchasecontract.Thisproductshouldnotbemixedwithothercommercialwastesfordisposal.