Wisdom SA Series Owner's manual

Owner’s Manual

System Amplier

SA-3

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT

REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING

TO QUALIFIED PERSONNEL.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT

EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

 Danger Thelightningashwitharrowheadsymbol,withinanequilateral

triangle,isintendedtoalerttheusertothepresenceofuninsulated

“dangerousvoltage”withintheproduct’senclosurethatmaybeof

sufcientmagnitudetoconstituteariskofelectricshocktopersons.

 Important Theexclamationpointwithinanequilateraltriangleisintended

toalerttheusertothepresenceofimportantoperatingand

maintenance(servicing)instructionsintheliteratureaccompanying

thisequipment.

  Markingbythe“CE”symbol(shownleft)indicatescomplianceof

thisdevicewiththeEMC(ElectromagneticCompatibility)andLVD

(LowVoltageDirective)standardsoftheEuropeanCommunity.

Note:Thisequipmenthasbeentestedandfoundtocomplywiththelimitsfor

aClassBdigitaldevice,pursuanttopart15oftheFCCRules.Theselimitsare

designedtoprovidereasonableprotectionagainstharmfulinterferenceina

residentialinstallation.Thisequipmentgenerates,usesandcanradiateradio

frequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstruc-

tions,maycauseharmfulinterferencetoradiocommunications.However,there

isnoguaranteethatinterferencewillnotoccurinaparticularinstallation.If

thisequipmentdoescauseharmfulinterferencetoradioortelevisionrecep-

tion,whichcanbedeterminedbyturningtheequipmentoffandon,theuser

isencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowing

measures:

• Reorientorrelocatethereceivingantenna

• Increasetheseparationbetweentheequipmentandthereceiver

• Connecttheequipmentintoanoutletonacircuitdifferentfrom

thattowhichthereceiverisconnected

• Consultthedealeroranexperiencedradio/TVtechnicianforhelp

Important Safety Instructions

Pleasereadallinstructionsandprecautionscarefullyandcompletelybeforeop-

eratingyourWisdomAudioequipment.

Readtheseinstructions.1.

Keeptheseinstructions.2.

Heedallwarnings.3.

Followallinstructions.4.

Donotusethisequipmentnearwater.5.

Cleanonlywithadrycloth.6.

Donotblockanyventilationopenings.Installinaccordancewiththemanu-7.

facturer’sinstructions.

Donotinstallnearanyheatsourcessuchasradiators,heatregisters,stoves,8.

orotherapparatus(includingampliers)thatproduceheat.

Donotdefeatthesafetypurposeofthepolarizedorgrounding-typeplug.A9.

polarizedplughastwobladeswithonewiderthantheother.Agrounding

typeplughastwobladesandathirdgroundingprong.Thewidebladeof

thethirdprongareprovidedforyoursafety.Iftheprovidedplugdoesnot

tintoyoursocket,consultanelectricianforreplacementoftheobsolete

outlet.

Protectthepowercordfrombeingwalkedonorpinchedparticularlyat10.

plugs,conveniencereceptacles,andthepointwheretheyexitfromtheap-

paratus.

Onlyuseattachments/accessoriesspeciedbythemanufacturer.11.

Unplugthisapparatusduringlightningstormsorwhenunusedforlongperi-12.

odsoftime.

Referallservicingtoqualiedpersonnel.Servicingisrequiredwhentheap-13.

paratushasbeendamagedinanyway,suchasapower-supplycordorplug

isdamaged,liquidhasbeenspilledorobjectshavefallenintotheappara-

tus,theapparatushasbeenexposedtorainormoisture,doesnotoperate

normally,orhasbeendropped.

ALWAYSdisconnectyourentiresystemfromtheACmainsbeforeconnect-14.

ingordisconnectinganycables,orwhencleaninganycomponent.

NEVERoperatethisproductwithanycoversremoved.15.

NEVERwettheinsideofthisproductwithanyliquid.16.

NEVERpourorspillliquidsdirectlyontothisunit.17.

NEVERbypassanyfuse.18.

NEVERreplaceanyfusewithavalueortypeotherthanthosespecied.19.

NEVERoperatethisproductinanexplosiveatmosphere.20.

ALWAYSkeepelectricalequipmentoutofthereachofchildren.21.

Table of Contents

Important Safety Instructions .........................................................................3

Unpacking the SA-3 ........................................................................................5

Warmup/break-inperiod .......................................................................................5

Placement Considerations ...............................................................................6

Ventilation .............................................................................................................6

Operating Voltage ...........................................................................................7

Special Design Features ..................................................................................8

DedicatedPower ...................................................................................................8

HighEfciency ......................................................................................................9

Small-BoxCompensation .......................................................................................9

Front Panel ....................................................................................................10

Rear Panel .....................................................................................................12

Remote turn-on tip polarity ...........................................................................14

Care & Maintenance .....................................................................................16

North American Warranty ............................................................................17

FiveYearWarranty...............................................................................................17

Obtaining Service .........................................................................................18

Specications ................................................................................................19

Dimensions ...................................................................................................20

Notes .............................................................................................................21

Unpacking the SA-3

YournewWisdomAudioSA-3isasubstantialpieceofequipment.Pleaseexer-

cisecautionwhenunpackingyourSA-3toensurethatyoudonotstrainyourself

fromits(perhapsunexpected)weight.

 Caution! DonotattempttoliftyourSA-3whilebendingortwistingfromthe

waist.Useyourlegsforlifting,notyourback.

AlwaysstandasstraightaspossibleandkeeptheSA-3closetoyour

body.

AfterunpackingyourSA-3,keepallpackingmaterialsforfuturetransport.In

the event that you need to ship your SA-3, only the original, purpose-designed

shipping carton is acceptable.Anyothermethodofshippingthisproductruns

asignicantriskofdamagetotheSA-3—damagethatwouldnotbecoveredby

thewarranty.

CarefullyinspectyourSA-3forpossibledamageduetoshipping.Ifyoudiscover

any,contactyourWisdomAudiodealerimmediately.

Warm up/break-in period AlthoughyourWisdomAudioSA-3deliversoutstandingperformancestraight

outofthebox,youshouldexpecttohearitcontinuetoimproveasitreaches

itsnormaloperatingtemperaturesanditsvariouscomponents“breakin.”It

hasbeenourexperiencethatthegreatestchangesoccurwithintherst25-50

hours,butthattheSA-3willcontinuetoimproveinsoundqualityforabout300

hours,afterwhichtimeitremainsquiteconstant.

Theonlyexceptiontothisruleisifpowerisremovedfromtheunit,allowingit

tocooldown.Inthiscaseyoushouldexpectabriefwarm-upperiodbeforethe

SA-3’ssoundqualityisatitsbest.(Fortunately,youwillneverhavetorepeatthe

full300hourbreak-inperiod.)

Placement Considerations

PRECAUTION

 Foryourprotection,review“ImportantSafetyInstructions”and

“OperatingVoltage”beforeyouinstallyourSA-3.

NotethatadequateclearancefortheACcordandconnectingsignalcables

mustbeleftbehindyourSA-3.Wesuggestleavingatleastsixinches(15cm)of

freespacebehindyourSA-3soallcableshavesufcientroomtobendwithout

crimpingorunduestrain.

Ifpossible,theSA-3shouldalsobeplacedinsuchawaythatthepowerswitch

ontherearpaneliseasilyaccessible.Thisswitchdisconnectspowerfromthe

unitcompletely,resultingineffectivedisconnectionoftheSA-3fromtheAC

mains.Youmightthinkofthisasa“vacationswitch,”shouldyouwishtoturn

offyoursystemcompletelywhenyouwillbeawayfromhomeforaprolonged

periodoftime.Justremembertoturnitbackonagainwhenyoureturn.

Ventilation YourWisdomAudioSA-3hasrelativelymodestventilationrequirements,thanks

toitsremarkablyefcientdesign.Typically,itbecomesonlymodestlywarm

duringnormaloperation.Still,pleasebecertaintokeeptheventsonthesides

oftheamplierclearofanyobstruction.(Therackmountattachmentshavecor-

respondingvents.)

Mechanicaldrawingsareincludedinthismanualtofacilitatespecialinstalla-

tionswherenecessary(see“Dimensions”attheendofthismanual).

Operating Voltage

Forcompatibilitywithexistinghouseholdoutlets,astandardthreeprong,20

ampereplugisprovidedontheremovable,IEC-standardACmainscable.

TheWisdomAudioSA-3maybesetfor100V,120V,or230V/240VACmains

operation.OutsidetheUnitedStates,anddependingonlocalelectricalcodes

andregulations,theACmainscordmayneedtobereplacedwithonethatcon-

formstolocalplug/outletstandards.

  NotethattheACreceptacleemploysa20-ampIEC-standardsocket

(notthemorecommon15-ampIECsocket).

TheoperatingvoltageoftheSA-3maynotbechangedbytheuser.Yourampli-

erhasbeenpresetatthefactoryforthevoltageofthecountryforwhichitwas

built.IfyoumovetoacountrywithadifferentACmainsvoltage,pleasecontact

yourlocalWisdomAudiodistributororWisdomAudioforassistance.

 Caution! AlwaysmakecertaintheSA-3issettothecorrectvoltagebefore

connectingittoACmainspower!Failure to do so can severely

damage the unit and void the warranty.

Thispoweramplierhasanextremelylargepowersupply,andconsequently

includesaspecialprotectioncircuitthatprotectsyourACmainscircuitfromex-

cessivein-rushcurrentswhenpowerisappliedtotheunit.

 Caution! PleaseallowthirtysecondsbetweenturningtheunitOnandOff,or

togglingbetweenOperateandStandby,toensurethatthein-rush

protectioncircuithasanopportunitytoresetitselfproperly.

FailuretoobservethisproceduremayresultinnuisancetrippingoftheAC

mainssupply’scircuitbreaker.Ifthisshouldhappen,disconnecttheamplier,

resettheACmainssupply’scircuitbreaker,andwaitfortwominutesbeforere-

connectingtheampliertotheACmains.

Special Design Features

Dedicated Power TheWisdomAudioamplier/speakersystemisdesignedtotakeadvantageof

afactthathashithertobeenunderstoodonlybyarelativelysmallnumberof

audiophiles:speakerssoundbetterwhentheyaredrivendirectlybydedicated,

highqualityampliers.

Youmightthinkthatyouhavedonesointhepast.Afterall,youconnected

yourreceiveroramplierdirectlytotheloudspeakercabinet,usinghighquality

wire.Butinalmostallcases,thatconnectionledtoapassivecrossovernetwork

withinthespeakercabinet,madeupofresistors,capacitorsandcoilsofwire

calledinductors.Thepassivecrossoverhadthejobofsplittingupthesignal

tothewoofer,midrange,andtweeterinsidethecabinet.Bydesign,itcreated

acomplex,reactivecircuitbetweentheamplierandthedriversthatactually

makethemusic.

TheWisdomAudioapproachdoesnotsufferfromthiscompromise.TheSC-1is

anactive(notpassive)crossoverthatdividesthemusicsignalwhilestillatapre-

amplierlevel.Itcandosowithfargreateraccuracyandconsistencythanpas-

sivecomponentsinaspeakerbox,withtheirinevitableproductiontolerances.

Theseseparatesignalsarethenroutedtodedicatedamplierswhichneedwork

withonlyaportionoftheaudiblerange.InthecaseoftheSA-3amplierchan-

nels,theyneedhandleonlythebass;themidrangeandtrebleareroutedtoa

separateamplierofyourchoosingthatdrivestheplanarmagneticpanels.

Thisapproachiscalled“bi-amplication”sinceeachspeakerisactuallyusing

twochannelsofamplication.Itprovidesseveralimportantbenets:

• Greater excitement due to improved dynamics.Obviously,

havingtwoampliersallowsyoutousemorepoweronaper-

speakerbasis,butthisisaboutmorethansimplyplayingloudly.

Themoment-to-momentdynamiccontrastsarevastlyimproved,

thankstothefactthattheinefcientbufferthatwouldhavebeen

thepassivecrossoverismissing.Theampliersareconnected

directlytotheirrespectivedrivers,soeverynuanceinthesignalis

preserved.

• Improved detail and intelligibility thanks to lower distortion.

Onemajorsourceofloudspeakerdistortion—thepassivecross-

overitself—hassimplybeeneliminated.Plus,eachamplierhas

asimplertask,beingresponsibleforonlypartoftheaudiblespec-

trum.Thisfactreducesseveraltypesofdistortion,mostnotably

clipping(sinceallofitspowerisavailableforlesswork)andinter-

modulationdistortion(sincetheamplierseesfewerfrequencies).

• Improved clarity and control.Theamplier’s“dampingfactor”

isonewayofmeasuringitsdegreeofcontroloverthemotionof

thedrivertowhichitisconnected.Unfortunately,whenapassive

crossoverintervenes,theamplierisnolongerdirectlyconnected

tothedriveritisaskedtocontrol.Asaresult,itlosesmuchofthe

precisionitsdesignersworkedsohardtoachieve.Byavoiding

theneedforapassivecrossoverandconnectingdirectlytothe

transducer,theamplier’sabilitytocontrolthemotionofthedia-

phragmismaximized.

Infact,manyWisdomAudiosystemstakethismultiple-amp-per-speakeridea

evenfurther.Whenyouaddoneormorededicatedsubwoofersthathandle

onlythedeepestbass,thesystemis“tri-amplied.”Thatis,youenjoythebene-

tsofhavingseparate,dedicatedampliersanddrivershandlingonlythedeep-

estbass,thentherestofthebass,andthenthemidrangeandhighfrequencies

(ontheplanarmagneticdrivers).

High Efciency Thebenetsofenormouspowerreservesarefairlyobvious:freedomfromany

audiblestrain,greaterdynamicimpact,andtheabilitytohearmusicandmovie

soundtracksattheirintendedvolumewithoutworryingaboutwhetherthe

systemcanhandleit.

However,thetraditionalmethodsforachievingthisrequiredlevelofperfor-

manceinvolvebulky,heavydesignsthatgenerateagreatdealofheat.When

youmultiplythenumberofchannelsrequiredforamodernhometheaterap-

plicationtimestwo(forbi-amplication),andaddinoneormorededicatedsub-

woofers,suddenlyyouhaveneedforsmaller,moreefcientamplierdesigns.

ThesystemampliersusedtodrivethewoofersectionsofyourSageseries

loudspeakersfromWisdomAudiotthebillnicely.Whilemanycontemporary

amplierswaste50%ormoreofthepowertheypullfromthewallasheat,your

SA-3amplierrunsatapproximately90%efciency.Asaresult,morepoweris

availablefortheloudspeaker,andlessiswastedasheatinyourroom.

ThehighefciencyoftheSA-seriesdesignalsomeansthattheamplierscanbe

placedincloseproximitytoeachother,asinanequipmentrack,withoutundue

overheating.Ofcourse,caremustbetakentoaccountfortheheatgenerated

byothercomponentsintherack;butyourWisdomAudioamplierswillnot

greatlycontributetothethermalmanagementchallengesofyoursystem.

Small-Box Compensation Peopletodaywantthebestofeverything.Whenitcomestotheirhomeen-

tertainmentsystems,theywanthighperformancewhilehavingrelativelylow

impactonthedécor.Thisdesirebecomesevenmoreimportantinahomethe-

atersituation,inwhichtheremightbesixtotenspeakersintheroom.Having

thatmanylarge,imposingloudspeakersinaroomissimplynotonmostpeo-

ple’swishlist.

TheSagesystemhasbeendesignedwiththisrealityinmind.Theenclosuresare

quitecompact,whichwouldnormallylimitthebassperformancerathersigni-

cantly.Butthankstotheremarkablyrobustdesignofthewoofersdevelopedfor

theSagesystem,wecancompensatefortheunusuallysmallenclosureswiththe

additionofextrapower.

Thenotionoftradingpowerrequirementsforsmallsizehasbeenusedexten-

sivelyinsubwooferdesignsforoverthirtyyears,andiswellproven.Wisdom

Audiohasnowbroughtthesesamebenetstothemainspeakers,inorderto

achieveoutstandingbassperformanceinspeakersofmodestsize.

TheWisdomAudioSA-3amplierwasdesignedfromtheoutsettoprovidethe

extrapowerrequiredbythisapproach.

 

Front Panel

1 Power Switch and Indicator

TheSA-3featuresasculptedfrontpanelthatconcealsaswitchunderthe

exibleleftendofthemiddlesection.Gentlypressingtheleftendofthe

centersectionwillengageamicroswitchunderthefaceoftheSA-3,which

willinturntoggletheunitbetweenoperateandstandby.Theinternational

symbolforpower isinscribedinthislocationtodesignateitspurpose.

Therearethreenormalstatesforthelitindicators

• LitamberLEDonleftsideindicatestheunitisreceivingpower

andisinstandby

• Litbluechannelstatusindicatorsindicatetheunitisreceiving

powerandisfullyon

• IfboththeamberandblueLEDsareoff,no powerisbeing

suppliedtotheamplier

2 Channel Status Indicators

ThesethreeLEDsprovidevisualconrmationoftheoperationalstatusof

thethreechannelsinyourSA-3.Anyfaultconditionthatcausesanindivid-

ualamplierchanneltoshutdown(forexample,ashort-circuitedspeaker

wire)willresultintheLEDindicatorforthatchannelblinkingtonotifyyou

ofaproblem.

Ifoneormoreindicatorsareblinking,turnofftheamplierandcomplete-

lydisconnectthespeakerwiresfortheoffendingchannel.(TheLEDsare

arrangedonthefrontasthechannelsarearrangedontheback,as seen

from the front.)Turntheamplierbackonandcheckthestatusindica-

tor.Ifitisstillblinking,thereislikelyaninternalproblemwithintheSA-3.

PleasecontactyourlocalWisdomAudiodealerorWisdomAudio’sTech-

nicalServicedepartmentforassistance.

Ifremovingthespeakerwiresfromtheoffendingchannelappearstosolve

theproblem,checktheDCresistanceacrossthespeakerleadsyoudis-

connected.Itshouldreadseveralohms(theexactnumbervariesabitby

model).IftheDCresistanceisunder1Ω,carefullycheckalltheconnec-

tionstomakesurenospeakerwiresaretouchingeachother,orshorted

outasaresultoftheirinsulationhavingbeendamaged.

Ifyoursisacustominstallationwithwiresthatareruninthewalls,you

shouldprobablycallyourWisdomAudiodealerforassistancetrouble-

shootingtheinstallation.

~ AC INPUT

made in the USA

www.wisdomaudio.com

CAUTION--RISK OF ELECTRIC SHOCK--DO NOT OPEN

Voltage set at factory for destination country

O 100V, 50-60 Hz, @ < 20A

O 120V, 50-60 Hz, @ < 20A

O 200V, 50-60 Hz, @ < 10A

O 220V, 50-60 Hz, @ < 10A

O 230-240V, 50-60 Hz, @ < 10A

INPUT

Ch 3

INPUT

– +

Ch 2

INPUT

Ch 1

OUTPUT OUTPUTClass 2 Wiring

– +– + DC Trigger

in out s/n: ___________

ON/OFF

OUTPUT

SA-3 System Amplifier







Rear Panel

 Caution! TurnofftheSA-3beforeattemptingtomakeorchangeany

connections.

1 Balanced Audio Inputs

Thesebalancedaudioinputsacceptthewooferoutputsignalsfromthe

system’sWisdomAudioSC-1systemcontrollerviaahighqualityXLRcon-

nector.

ThepinassignmentsofthisXLR-typefemaleinputconnectorare:

 Pin1:Chassisground

 Pin2:Signal+(non-inverting)

 Pin3:Signal–(inverting)

 Connectorgroundlug:chassisground

Thesepinassignmentsareconsistentwiththestandardsadoptedbythe

AudioEngineeringSociety,andwiththeoutputsoftheWisdomAudio

SC-1SystemController.

ConnecttheappropriateoutputsoftheSC-1totheseinputs,usinghigh

qualitybalancedaudiocables.

2 Speaker Output Terminals

TheWisdomAudioSA-seriesampliersareequippedwithhigh-current

bindingpostsforoutputterminationtotheloudspeakersystem.Totake

fulladvantageoftheamplier’ssonicquality,werecommendusinghigh-

qualityspeakercable;pleaseseeyourWisdomAudiodealer.

 Caution! NEVERconnectapoweramplier’soutputterminalstoanydevice

otherthanaloudspeaker.

NEVERshort-circuittheamplier’soutputterminals.

NEVERconnecttheoutputterminalsofoneampliertotheoutput

terminalsofanotheramplier.

EachchanneloftheSA-3systemamplierhasasingle,patentedCardas

speakerterminalformakingthespeakerwireconnections.Thissystem

usesasinglelargeknobtotightendownonbothpositive+andnegative–

connectionsatonce,withoutanyneedfortools.

Theuniquedesignofthesebindingpostsallowstheuseofastrong,hard

materialforthethreadsthatprovidethepressureontheconnection,while

atthesametimeusingoptimalelectricalconnections(whichrequirea

softermetal).Byseparatingthemechanicalandtheelectricalsystems

withintheconnector,bothcanbeproperlyoptimized.

Therearetworecommendedmethodsforconnectingspeakercablesto

youramplier.Eitherahigh-qualityspadelugorhooklug,solderedtothe

cable(orcrimpedwithextremelyhighpressure),isbest.

Connectthe+(positive)outputpostoftheampliertothe+(positive)

inputterminaloftheappropriateloudspeaker.Connecta–(negativeor

black)outputpostoftheampliertothe–(negativeorblack)inputter-

minaloftheappropriateloudspeaker.Takecaretomaintainthisproper

polaritythroughoutthesystem.

 Caution! DONOTOVERTIGHTENthebindingpostsonyouramplier!The

uniquedesignofthesepostsgivesfarmoreleveragethantraditional

posts.Youwillachievetight,highcontactpressureconnectionswith

onlymodestnger-tightening,andwithouthavingtoresorttospecial

tools.

3 DC Trigger In and Out

These12vtriggerjacksprovidecompatibilitywithawiderangeofprod-

uctstofacilitateremoteturn-onandturn-offinsystems.These1⁄8”(3.5

mm)“mini-jacks”allowothercomponentstobringtheSA-3inandoutof

standby.Twosuchmini-jacksareprovidedtoallow“daisy-chaining”of

thisturn-onsignalwithothercomponents,includingadditionalampliers.

Theremotetriggerinputwillbeoperatedbyanypositive-polarityDC

signalbetween3–20volts(onlyafewmilliampsarerequired),withtippo-

larityasshownbelow:

Remote turn-on

tip polarity

+–

InputSignal:3-20volts@lessthan10mA

OutputSignal:12volts@100mA

TheDCTriggerInputhaspriorityoverthefrontpanelswitch.Therefore,if

atriggervoltageispresentatthisinputconnector,theunitwillbeforced

onandthefrontpanelswitchwillbeignored.Whenthevoltagetransi-

tionsfromhightolow(off),theunitwillgointostandby.

Whenthereisnovoltagepresentatthetriggerinput(eitherbecausethe

controllingdeviceisnotsending,orbecausetheplugisremoved),the

frontpanelswitchwilloperatetheSA-3asyouwouldexpect.

The12vTriggerOutputjackisdriventoa“high”stateof12voltsafew

secondsaftertheSA-3isturnedon,andcansourceasmuchas100mA

ofcurrentat12volts.Thissignalmaybeusedinturntocontrolother

components,suchasadditionalWisdomAudioSA-seriesampliers.

EachWisdomAudiocomponenthasashortdelaybuiltintoitsDCtrigger

systemtofacilitateastaggeredturn-onsequence.

YourWisdomAudiodealercanhelpyoutakeadvantageofthesedesign

featurestomaximizeyoursystem’sconvenienceandversatility.

4 AC Mains Input & Switch

A20-ampereIECstandardpowercordisusedwiththeSA-3.Ahighqual-

ity20-ampereACmainscordisincludedwiththeproduct,althoughthe

useofthestandardizedIECreceptaclemeansthatyoumayeasilysubsti-

tuteanotherhighqualityACmainscordifyouwish.

  NoteduetothehighcurrentnatureoftheSA-3,itusesa20-ampere

IECreceptacleandcord,ratherthanthemorecommon15-ampere

version,anditwillnotaccepta15-amperecord.Ifyoudecideto

useanafter-marketpowercord,itmustemploythecompatible20-

ampereIECconnector.

 Warning! YournewWisdomAudioSA-3hasbeensafety-testedandis

designedforoperationwithathree-conductorpowercord.Donot

defeatthe“thirdpin”orearthgroundoftheACpowercord.

An AC mains switch islocatedabovethepowercordontherearpanel

oftheSA-3.ThisswitchmaybeusedtodisconnecttheunitfromtheAC

mainswithouthavingtoactuallyunplugtheSA-3fromthewalloutlet.

Ifyouplantobeawayforanextendedperiod,orhaveanyotherreasonto

turntheSA-3completelyoff,youmayeitherunplugtheSA-3oryoumay

usetheAC mains switch.

 Danger! Potentiallydangerousvoltagesandcurrentcapabilitiesexistwithin

yourSA-3.DonotattempttoopenanyportionoftheSA-3’scabinet.

Therearenouser-serviceablepartsinsideyourSA-3.Allserviceof

thisproductmustbereferredtoaqualiedWisdomAudiodealeror

distributor.

WerecommendthatcarebetakentoensurethatallACplugsfortheequipment

inthesystembewiredsoastoensureproperACpolarity.Doingsowillmini-

mizenoiseinthesystem.

IntheU.S.,asimplyACmainstester(foundatanyhardwarestore)cantestto

ensurethatyourelectricaloutletsarewiredproperly.Elsewhereintheworld

(forexample,inEuropeanUnioncountries),theACmainsplugsthemselvesare

notalwayspolarized.Yourdealercantestfortheproperorientationoftheplug

intheoutlet.Insuchacase,itisgoodpracticetomarkbothplugandoutletto

ensurethatallproductsremainintheproperorientationshoulditbecomenec-

essarytotemporarilydisconnectthesystem(asforexample,duringanelectrical

storm).

Care & Maintenance

ToremovedustfromthecabinetofyourSA-3,useafeatherdusteroralint-free

softcloth.Toremovedirtandngerprints,werecommendisopropylalcohol

andasoftcloth.Dampentheclothwithalcoholrstandthenlightlycleanthe

surfaceoftheSA-3withthecloth.Donotuseexcessiveamountsofalcoholthat

mightdripofftheclothandintotheSA-3.

 Caution! AtnotimeshouldliquidcleanersbeapplieddirectlytotheSA-3,

asdirectapplicationofliquidsmayresultindamagetoelectronic

componentswithintheunit.

North American Warranty

Five Year Warranty WhenpurchasedfromandinstalledbyanauthorizedWisdomAudiodealer,

WisdomAudio®electronicproductsarewarrantedtobefreefromdefectsin

materialandworkmanshipundernormaluseforaperiodofveyearsfromthe

originaldateofpurchase.

Duringthewarrantyperiod,anyWisdomAudiocomponentexhibitingdefects

inmaterialsand/orworkmanshipwillberepairedorreplaced,atouroption,

withoutchargeforeitherpartsorlabor,atourfactory.Thewarrantywillnot

applytoanyWisdomAudiocomponentthathasbeenmisused,abused,altered,

orinstalledandcalibratedbyanyoneotherthananauthorizedWisdomAudio

dealer.

AnyWisdomAudiocomponentnotperformingsatisfactorilymaybereturnedto

thefactoryforevaluation.Returnauthorizationmustrstbeobtainedbyeither

callingorwritingthefactorypriortoshippingthecomponent.Thefactorywill

payforreturnshippingchargesonlyintheeventthatthecomponentisfoundto

bedefectiveasmentionedabove.Thereareotherstipulationsthatmayapplyto

shippingcharges.

Thereisnootherexpresswarrantyonthiscomponent.Neitherthiswarrantynor

anyotherwarranty,expressorimplied,includinganyimpliedwarrantiesofmer-

chantabilityortness,shallextendbeyondthewarrantyperiod.Noresponsibil-

ityisassumedforanyincidentalorconsequentialdamages.Somestatesdonot

allowlimitationsonhowlonganimpliedwarrantylastsandotherstatesdonot

allowtheexclusionorlimitationofincidentalorconsequentialdamages,sothe

abovelimitationorexclusionmaynotapplytoyou.

Thiswarrantygivesyouspeciclegalrights,andyoumayalsohaveotherrights

whichvaryfromstatetostate.ThiswarrantyisapplicableinNorthAmerica

only.OutsideofNorthAmerica,pleasecontactyourlocal,authorizedWisdom

Audiodistributorforwarrantyandserviceinformation.

Toregisteryourwarranty,pleasecompletetheformatthefollowingaddresson

the internet:

http://www.wisdomaudio.com/registration/

Doingsowillensurethattherewillbenodelaysshouldyoueverrequirewar-

rantyservice.Ifaccessingtheinternetisinconvenient,youcansendacopyof

thesalesreceipt(showingyourname,addressandtheproductspurchased)to:

WisdomAudio

1572CollegeParkway,Suite164

CarsonCity,NV89706

Formoreinformation:

www.wisdomaudio.com

information@wisdomaudio.com

Ph:775.887.8850

Fax:775.887.8820

Obtaining Service

Wetakegreatprideinourdealers.Experience,dedication,andintegritymake

theseprofessionalsideallysuitedtoassistwithourcustomers’serviceneeds.

IfyourWisdomAudiocomponentmustbeserviced,pleasecontactyourdealer.

Yourdealerwillthendecidewhethertheproblemcanberemediedlocally,or

whethertocontactWisdomAudioforfurtherserviceinformationorparts,orto

obtainaReturnAuthorization.TheWisdomAudioServiceDepartmentworks

closelywithyourdealertosolveyourserviceneedsexpediently.

 Important! ReturnauthorizationmustbeobtainedfromWisdomAudio’sService

DepartmentBEFOREaunitisshippedforservice.

Itisextremelyimportantthatinformationaboutaproblembeexplicitandcom-

plete.Aspecic,comprehensivedescriptionoftheproblemhelpsyourdealer

andtheWisdomAudioServiceDepartmentlocateandrepairtheproblemas

quicklyaspossible.

Acopyoftheoriginalbillofsalewillservetoverifywarrantystatus.Pleasein-

cludeitwiththeunitwhenitisbroughtinforwarrantyservice.Thisstepisnot

necessaryifthewarrantyisregisteredatthetimeofpurchase.(Anotherreason

toregisteryourpurchaseathttp://www.wisdomaudio.com/registration/.)

 Warning! Allreturnedunitsmustbepackagedintheiroriginalpackaging,

andtheproperreturnauthorizationnumbersmustbemarkedon

theoutercartonforidentication.Shippingtheunitinimproper

packagingmayvoidthewarranty,asWisdomAudiocannotbe

responsiblefortheresultingshippingdamage.

Yourdealercanorderanewsetofshippingmaterialsforyouifyouneedto

shipyourcomponentandnolongerhavetheoriginalmaterials.Therewillbea

chargeforthisservice.Westronglyrecommendsavingallpackingmaterialsin

caseyouneedtoshipyourunitsomeday.

Ifthepackagingtoprotecttheunitis,inouropinionorthatofourdealer,inade-

quatetoprotecttheunit,wereservetherighttorepackageitforreturnshipment

attheowner’sexpense.NeitherWisdomAudionoryourdealercanberespon-

sibleforshippingdamageduetoimproper(thatis,non-original)packaging.

Specications

All specications are subject to change at any time, in order to improve the

product.

■ Rated power output: 500w/chcontinuousrmspower@4Ω

 abovepowerratingsfrom20Hz–20kHzat<0.5%THD

■ Peak output current: >30amps

■ Voltage gain: 31dB

■ Input sensitivity: 1.2Vforfulloutput

■ Input impedance: 25kΩ(balanced)

■ Polarity: Non-inverting,Pin2positive

■ Signal to Noise ratio (main outputs): –103dB(ref1Vrms,A-wtd.)

■ Output impedance: lessthan0.05Ωfrom20–20,000Hz

■ Recommended load impedance: 2–8Ω

■ Thermal load: 7BTU/minuteorless

■ Mains voltage: 100V,120V,or230/240V

  determinedbytheneedsofcountryforwhich

  theunitwasmanufactured;cannotberesetbydealeroruser

■ Overall dimensions: See“Dimensions”

■ Shipping weight: 34lbs.(15.4kg)

■ Power consumption: 1870W(±5%)atfullpower,allchannelsdriven

  10W(±5%)atidle

  2W(±5%)instandby

Formoreinformation,seeyourWisdomAudiodealer,orcontact:

Wisdom Audio

1572 College Parkway, Suite 164

Carson City, NV 89706

www.wisdomaudio.com

information@wisdomaudio.com

Ph: 775.887.8850

Fax: 775.887.8820

Dimensions

151⁄2"(39.4cm)

17"(43.2cm)

33⁄4"

(8.57cm)

11⁄4"

(3.2cm)

33⁄8"

(8.6cm)

11⁄4"

(3.2cm)

167⁄8"(42.9cm)

13"

(33cm)135⁄8"

(34.7 cm)

5⁄8"

(1.7cm)

3⁄8"

(.95cm)

17"(43.2cm)

135⁄8"(34.7cm)

33⁄8"

(8.6cm)

3⁄8"

(.95cm)

33⁄4"

(8.57cm)

111⁄8"(28.3cm)

11⁄4"

(3.2cm) 11⁄4"

(3.2cm)

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Wisdom SA Series, SA-1 Owner's manual

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