AUDAC CAP224 User manual

CAP Series
User Manual
www.audac.eu

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Index
Introduction 5
CAP Series Block Diagram 6
Precautions 7
Safety requirements7 
Caution servicing7
EC Declaration of Conformity7
Waste of Electrical and Electronic Equipment (WEEE) 8
Caution 8
Chapter 1: Pin connections and connectors 9
Connection standards 9
Wire up the system 9
Chapter 2: Front & rear panel 10
Front panel overview 10
Front panel description 10
Rear panel overview 11
Rear panel description 11
Chapter 3: Connecting the Amplifier 12
Input connections 12
Output connections 12
Chapter 4: Additional information 14
Technical specifications 14
Notes 16

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5
Introduction
Multi Channel 100V Power Amplifiers
TheCAPSeriesareprofessional100VMulti-ChannelPowerAmplifiers,containingvarious
modelswithdifferentchannelsanddifferentoutputpowerconfiguration.Differentoutput
configurationswithtwoandfourchannelsandpowerratingsfor120Watt,240Wattand
480Wattforeachchannelareavailable.
Thisway,aflexiblesolutioniscreatedforMulti-Zoneaudiodistributionsystemswithtwo
ormoreindependentzones.
Theyaredesignedasno-nonsenseamplifierswithonlythenecessarycontrolsand
connections,whichcreatesgreatsimplicityinuseandinstallation.Ahighefficiencyand
reliabilityofthedevicesisachievedbyusingswitchingpowersuppliesincombinationwith
Class-DAmplifiertechnology.Atemperaturecontrolledfanconstantlykeepsallpartswithin
therightoperationrange,whileavoidingexcessivebuzz.Abuilt-inmultipurposeprotection
circuitprotectsagainstDCmalfunction,Shortcircuit,overheating,overloadandlimitsthe
signalwhennecessary.
TheinputconnectionsareperformedusingbalancedXLRconnectorsandLinkoutput
connectorsareprovidedforlinkthroughtootheramplifiers.Besides,ahigh-passfilter
switch(400Hz)andaGainadjustmentpotentiometerareprovidedforeachchannel.
Theoutputconnectionsareperformedusingreliableterminalblockconnectorsandthisall
ishousedintoasolidconstructed,doublerackspace(2HE)19”rackmountinghousing.

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CAP Series Block Diagram

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Precautions
READ FOLLOWING INSTRUCTIONS FOR YOUR OWN SAFETY
ALWAYSKEEPTHESEINSTRUCTIONS.NEVERTHROWTHEMAWAY
ALWAYSHANDLETHISUNITWITHCARE
HEEDALLWARNINGS
FOLLOWALLINSTRUCTIONS
NEVEREXPOSETHISEQUIPMENTTORAIN,MOISTURE,ANYDRIPPINGORSPLASHING
LIQUID.ANDNEVERPLACEANOBJECTFILLEDWITHLIQUIDONTOPOFTHISDEVICE.
DONOTPLACETHISUNITINANENCLOSEDENVIRONMENTSUCHASABOOKSHELF
ORCLOSET.ENSURETHEREISADEQUATEVENTILATIONTOCOOLTHEUNIT.DONOT
BLOCKTHEVENTILATIONOPENINGS.
DONOTSTICKANYOBJECTSTHROUGHTHEVENTILATIONOPENINGS.
DONOTINSTALLTHISUNITNEARANYHEATSOURCESSUCHASRADIATORSOR
OTHERAPPARATUSTHATPRODUCEHEAT
DONOTPLACETHISUNITINENVIRONMENTSWHICHCONTAINHIGHLEVELSOFDUST,
HEAT,MOISTUREORVIBRATION
THISUNITISDEVELOPEDFORINDOORUSEONLY.DONOTUSEITOUTDOORS
PLACETHEUNITONASTABLEBASEORMOUNTITINASTABLERACK
ONLYUSEATTACHMENTS&ACCESSORIESSPECIFIEDBYTHEMANUFACTURER
UNPLUGTHISAPPARATUSDURINGLIGHTNINGSTORMSORWHENUNUSEDFORLONG
PERIODSOFTIME
ONLYCONNECTTHISUNITTOAMAINSSOCKETOUTLETWITHPROTECTIVE
EARTHINGCONNECTION
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EC DECLARATION OF CONFORMITY
Thisproductconformstoalltheessentialrequirementsandfurther
relevantspecificationsdescribedinfollowingdirectives:2004/108/EC
(EMC)and2006/95/EC(LVD)
CAUTION - SERVICING
Thisproductcontainsnouserserviceableparts.Referallservicingto
qualifiedservicepersonnel.Donotperformanyservicing(unlessyou
arequalifiedto)

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CAUTION
Thesymbolsshownareinternationallyrecognizedsymbolsthatwarnaboutpotentional
hazardsofelectricalproducts.Thelightningflashwitharrowpointinanequilateral
trianglemeansthattheunitcontainsdangerousvoltages.Theexclamationpointin
anequilateraltriangleindicatesthatitisnecessaryfortheusertorefertotheusers
manual.
Thesesymbolswarnthattherearenouserserviceablepartsinsidetheunit.Donot
opentheunit.Donotattempttoservicetheunityourself.Referallservicingtoqualified
personnel.Openingthechassisforanyreasonwillvoidthemanufacturer’swarranty.Do
notgettheunitwet.Ifliquidisspilledontheunit,shutitoffimmediatelyandtakeittoa
dealerforservice.Disconnecttheunitduringstormstopreventdamage.
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)
TheWEEEmarkingindicatesthatthisproductshouldnotbedisposed
withregularhousholdwasteattheendofitsworkinglife.Thisregulation
iscreatedtopreventanypossibleharmtotheenvironmentorhuman
health.
Thisproductisdevelopedandmanufacturedwithhighqualitymaterials
andcomponentswhichcanberecycledand/orreused.Pleasedispose
thisproducttoyourlocalcollectionpointorrecyclingcentreforelectrical
andelectronicwaste.Thiswillmaketosurethatitwillberecycled
onanenvironmentallyfriendlymanner,andwillhelptoprotectthe
environmentinwhichwealllive.

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Chapter 1
Pin connections and connectors
CONNECTION STANDARDS
Thein-andoutputconnectionsforAUDACaudioequipmentareperformedcorresponding
tointernationalwiringstandardsforprofessionalaudioequipment.
Cinch (RCA):
Forunbalancedlineinputconnections
Tip: Signal  Sleeve:  Ground
White: Left  Red: Right
XLR:
Forbalancedsignalinputconnections
 Pin 1: Ground
 Pin 2: Signal+
 Pin 3: Signal-
Forbalancedsignallink-throughconnections
 Pin 1: Ground
 Pin 2: Signal+
 Pin 3: Signal-
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Wire up the system
Thewiringofthesystemmustbedoneaccordingtothefollowingrules,toguaranteea
properfunctioningofthesysteminallcircumstances.
1. Speakercableforamplifiedoutputs:
Minimum 2 x 1.5 mm²
If distance > 15m: 2 x 2.5 mm²)

2. Musicsourcesandzoneoutputs:
Must be connected with high-quality audio cable and high-quality
connectors

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Chapter 2
Front & rear panel
Front panel description
ThefrontpaneloftheCAPseriesslighlyvariesdependingoftheoutputconfigurationand
powerrating,butbasicallythepanellayoutforallCAPamplifiersissimilar.
Power switch
Apowerswitchallowstoswitchtheamplifieronandoff,whiletheblueindicatorLED
locatednexttothebuttonilluminateswhenthepowerisswitchedon.
Indicator Led’s
FourLED’sforeverychannelindicatetheoperationoftheamplifier.ThegreenSignal
LEDilluminateswheneverasignalispresent,whilethe-20dBLEDilluminateswhenthe
inputsignalexceedsthe-20dBulevel.TheClipLEDilluminateswhenthecorresponding
channelisworkingatmaximumlevel.Toensurethebestsignal-to-noiseratio,theClip
LEDmayonlyilluminateatpeaklevels.
WhentheClipLEDilluminatesfrequently,theamplifierwillbeoverloaded,adistorted
“Clipping”soundwillbeavailableontheoutput.TheProtectionLEDwillilluminatewhen
overheatingoccurs,oranyotherfaultisdetected.WhentheprotectionLEDisilluminated,
nosignalwillbeavailableontheoutputs.TheprotectionLED’swillalsoilluminatefora
fewsecondswhenpoweringuptheamplifier,andwhentheamplifierisswitchedoffthey
willslowlyfadeout.
Front Panel overview
CAP424