Wisdom Wands SC-1 User manual

Brand: Wisdom Wands

Model: SC-1

Category: Supplementary music equipment

Type: User manual

Owner’s Manual

Wisdom Audio

System Controller

SC-1

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.

ManufacturedunderlicensefromAudysseyLaboratories.U.S.andforeignpat-

entspending.Audyssey

™

,AudysseyLabs

™

aretrademarksofAudyssey

Laboratories.MultEQ

XTisaregisteredtrademarkofAudysseyLaboratories.

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power-supplycordorplugis

damaged,liquidhasbeenspilledofobjectshavefallenintotheapparatus,

theapparatushasbeenexposedtorainormoisture,doesnotoperatenor-

mally,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 SC-1 ........................................................................................6

Warmup/break-inperiod .......................................................................................6

Placement Considerations ...............................................................................7

Ventilation .............................................................................................................7

Operating Voltage ...........................................................................................8

Special Design Features ..................................................................................9

AdvancedRoomCorrection ...................................................................................9

MultipleSetupMemories .......................................................................................9

Bi-orTri-amplication ...........................................................................................9

System-SpecicEQ ..............................................................................................10

RemoteSetupviaModem ....................................................................................10

Front Panel ....................................................................................................11

Rear Panel .....................................................................................................13

Using single-ended preampliers ..................................................................14

Using single-ended ampliers........................................................................14

Using single-ended ampliers........................................................................15

Remote turn-on tip polarity ...........................................................................17

Introduction to Room Acoustics ...................................................................19

StartWiththeRoom ............................................................................................19

Rigid Walls ....................................................................................................19

MainSpeakerPlacement ......................................................................................20

SubwooferPlacement ..........................................................................................21

RoomTreatment ..................................................................................................21

ProfessionalAcousticDesign ...............................................................................22

References ...........................................................................................................22

Getting Ready to Calibrate ............................................................................23

SystemConnections .............................................................................................23

OverviewoftheProcess ......................................................................................23

BeforeCalibration ...............................................................................................24

DuringCalibration ...............................................................................................24

Wisdom System Conguration ......................................................................25

ConnectingthePC ...............................................................................................25

Wisdom System Conguration .....................................................................25

BasicSystemDescription .....................................................................................25

Basic System Description screen ...................................................................26

6.x Phantom .................................................................................................26

SpeakerSelection ................................................................................................26

Speaker Selection screen 1 ...........................................................................27

Speaker Selection screen 2 ...........................................................................27

HighCrossoverVolumeTrim ...............................................................................28

Determining the trim value ...........................................................................28

Room Calibration screen...............................................................................28

Trim calculation table ...................................................................................29

Using identical amps .....................................................................................29

Audyssey MultEQ

Pro ..................................................................................30

LaunchingMultEQPro ........................................................................................30

Room Calibration .........................................................................................30

MultEQ Pro Welcome screen ........................................................................31

Job Information .............................................................................................31

Options/Microphone Selection .....................................................................32

Room Dimensions ........................................................................................32

Equipment Info .............................................................................................33

Measurement .......................................................................................................33

Microphone position ....................................................................................33

Measuring additional positions ......................................................................34

DetectionResults .................................................................................................35

TargetSoundOptions ..........................................................................................37

Disconnect the microphone ..........................................................................38

SaveResults .........................................................................................................39

Advanced Calibration Tip .............................................................................39

Calibration Completed ..................................................................................41

Care & Maintenance .....................................................................................42

North American Warranty ............................................................................43

FiveYearWarranty...............................................................................................43

Obtaining Service .........................................................................................44

Specications ................................................................................................45

Dimensions ...................................................................................................46

Notes .............................................................................................................47

Unpacking the SC-1

PleaseexercisecautionwhenunpackingyournewWisdomAudioSC-1to

ensurethatyoudonotstrainyourself.

 Caution! Do notattempttoliftyourSC-1whilebendingortwistingfromthe

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

AlwaysstandasstraightaspossibleandkeeptheSC-1closetoyour

body.

AfterunpackingyourSC-1,keepallpackingmaterialsforfuturetransport.In

theeventthatyouneedtoshipyourSC-1,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SC-1—damagethatwouldnotbecoveredby

thewarranty.

CarefullyinspectyourSC-1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SC-1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SC-1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

SC-1’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SC-1.

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

mustbeleftbehindyourSC-1.Wesuggestleavingatleastsixinches(15cm)of

freespacebehindyourSC-1soallcableshavesufcientroomtobendwithout

crimpingorunduestrain.

Ifpossible,theSC-1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SC-1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SC-1containsmanyactivedevicesandagreatdealof

signalprocessing.Itwillrunquitewarmundernormaloperation.Itshouldnot

beplaceddirectlyontopofanothercomponentthatgeneratessignicantheat,

suchasmostpowerampliers.Donotblocktheventsonthesidesoftheunit.

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,15

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

TheWisdomAudioSC-1maybesetfor100-120Vor200V-240VACmainsop-

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

regulations,theACmainscordmayneedtobereplacedwithonethatconforms

tolocalplug/outletstandards.

TheoperatingvoltageoftheSC-1maynotbechangedbytheuser.YourSC-1

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suretheSC-1issetforthecorrectvoltagebefore

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

damage the unit. The voltage setting of the unit is determined by the

country for which it was manufactured, and is clearly marked on the

packaging.

Special Design Features

Advanced Room Correction AudysseyMultEQ

XTisaroomequalizationsolutionthatcalibratesanyaudio

systemsothatitcanachieveoptimumperformanceforeverylistenerinalarge

listeningarea.MultEQ

XTcapturesacousticalinformationatmultiplelocations

throughoutalisteningareainboththetimeandfrequencydomains.Itusesa

sophisticatedclusteringalgorithmtocombinethisinformationsothatacousti-

calproblemsareaccuratelyanalyzed.Basedonthesemeasurements,MultEQ

XTcalculatesanequalizationsolutionthatcorrectsforbothtimeandfrequency

responseproblemsinthelisteningareaandalsoperformsafullyautomatedsur-

roundsystemsetup.Theresultisclear,well-balancedsoundforeverylistener.

Multiple Setup Memories Wethenwentfurtherandprovidedsupportforrecallinguptothreecomplete

andindependentsetupcalibrations,anyofwhichcanbeselectedasneeded.

Whileasinglesetupisallthatisnecessary,havingtheabilitytorecallanyof

multiplesetupscansolvesomeotherwisedifcultsituations.Forexample,you

mightwanttohaveselectablesetupsfor

• differentroomconditions(e.g.,drapesopenvs.closed)

• slightlydifferenttargetcurves(e.g.,musicvs.gaming)

• variousseatingarrangements

Onlyyouandyourdealercandecidewhetheryouwouldbenetfromtaking

advantageofanyofthesepossibilities.Mostpeopleobtaineverythingtheyneed

fromasinglesetup;buthavingtheexibilitytoaddressunusualcircumstances

canbeinvaluable.

Bi- or Tri-amplication Peoplewhohavewantedtoextractthehighestperformancefromtheirsystems

haveknownforalongtimethatdrivingeachsectionofthespeakerdirectlyand

separatelyyieldsthenestresults.Ofcourse,thisrequireshavingadedicated,

activecrossovertodividethefrequencyrangeappropriatelybeforethepower

ampliers,sothattheycanthendrivethespeakersdirectly.

Biamplicationmakesuseoftwochannelsofamplicationtodrivedifferent

portionsofasinglechannel.Themostcommoninstanceof“bi-amping”today

isinhometheaterapplications,whereinadedicatedsubwooferhandlesthe

deepestbass,whiletheremainingaudiblerangeishandledbythevariousfront

andsurroundspeakers.Butyoucanalsobiamplifyafullrangeloudspeaker,

drivingthewooferseparatelyfromthedriversthathandlethemidrangeand

treblefrequencies.

Logically,youcancombinethesetwoapproaches,andtheresultis“triampli-

cation.”A“tri-amped”systemusesseparateamplicationforthreeaudible

ranges.Inourcase,thethreerangesare:

• deepestbass(oneormoresubwoofers)

• mid-bass(thewoofersinthefrontandsurroundspeakers)

• midrangeandtreble(theplanarmagneticpanels)

Sinceeachchanneloftheamplierisdeliveringcurrentintoitsloadonlyover

alimitedrangeoffrequencies,severalformsofdistortionarereducedascom-

paredtoeachchannelhandlingthefullrangeofmusicalinformation.

TheSC-1supportsuptoa“7.3channel”system,meaningthatuptosevenmain

speakerscanbesupported(allofwhicharebiamplied),plusuptothreeinde-

pendentsubwooferchannels.Alloftheseoutputsbenetfromroomcorrection,

describedabove.

System-Specic EQ WisdomAudiospeakersdeliverextraordinaryperformancefromslim,elegant

enclosures.However,wecannotcheattherulesofphysics.Deliveringpowerful

bassfromsuchsmallenclosuresplacesunusualdemandsonboththewoofers

andtheampliersusedtodrivethem.

Specically,equalizationisusedtocompensatefortheunusuallysmallenclo-

surevolumebehindthewoofer.Thisapproachisusedinalmostalldedicated

subwooferstoday,andweuseitinourfullrangespeakers.Doingsoallowsus

toachievethebassperformanceusuallyassociatedmuchlargerspeakers,butin

elegantenclosuresthatsupportmodernlifestylechoices.

  

Front Panel

1 Power Switch and Indicator

TheSC-1featuresasculptedfrontpanelthatconcealstwoswitchesunder

theexibleendsofthemiddlesection.Ontheleftside,gentlypressing

theendofthecentersectionwillengageamicroswitchunderthefaceof

theSC-1,whichwillinturntoggletheunitbetweenoperateandstandby

modes.Theinternationalsymbolforpower isinscribedinthislocation

todesignateitspurpose.

TheamberLEDindicatorontheleftsideofthecentersectionislitwhen

theSC-1isinstandbytoindicatethatitisreceivingpower;itisoffwhen

theSC-1iseitherfullyonorwhenthereisnopowerbeingsuppliedtothe

unit.(WhentheSC-1isfullyon,oneofthesetupmemoryLEDswillbelit

toindicatebothpowerandwhichsetupmemoryisbeingused.Ifallthe

LEDSareoff,nopowerisbeingsuppliedtotheunit.)

TheSC-1requiresseveralsecondsto“bootup”whencomingoutofstand-

by.TheamberLEDashesduringthisstartupprocess,turningoffwhenit

iscomplete.OneoftheSetupMemoryLEDswillturnonatthispointto

indicatewhichmemoryisactive).

2 Setup Memory LED Indicators

TheWisdomSystemControllerincorporatesthelatestversionof

AudysseyMultEQ

XTroomcorrectiontoenableittoaddressroom-

specicproblemsthatwouldotherwisecompromiseperformance.Under

mostcircumstances,asinglecalibrationofthesystemfortheroomand

yourpreferredlisteningpositionsisallthatisnecessary.ButtheSC-1

providesstorageofuptothreecompleteandindependentcalibrationsto

addressvarioiussituations.

ThesethreeLEDsindicatewhichofthethreesetupmemoriesiscurrently

active.Theyalsoservetoindicatethattheunitispoweredupandoperat-

ingnormally.(Whentheunitisinstandby,onlytheamberstandbyLEDon

theleftsideofthefrontpanelislit;thebluememoryLEDsareoff.)

TheLEDsindicatewhichofthethreesetupmemoriesisactive:

• LED1on=Setupmemory#1enabled

• LED2on=Setupmemory#2enabled

• LED3on=Setupmemory#3enabled

• LED1blinkingslowly=MultEQ

bypassedtemporarily

Thebypassmodeisavailablesoyoucanhearthedifferenceroomcorrec-

tionhasmadeonyoursystem.Whentheroomcorrectionsubsystemis

bypassed,theactivecrossoverandothersystem-speciccircuitryisstill

engaged.Thisallowsyoutoeasilyhearonlywhattheroomcorrection

softwareisdoingforyoursystem.

Youcancyclethroughtheavailablememoriesandbypassmodebypress-

ingtheSetupCalibrationSwitchtotherightoftheseindicators.(See3,

below.)

Inaddition,thereisonespecialcase:

• Duringroomcorrectioncalibration(only),allthreeLEDswill

beon,andtheLEDforthesetupmemoryyouareworking

onwillblinkforthedurationofthecalibration.TheLEDswill

returntotheirnormaloperationasdescribedaboveoncethe

resultsofthecalibrationaresavedpermanentlytomemory.

3 Setup Calibration Selector Switch

PressingtherightsideofthecentersectionoftheSC-1frontpanelwill

activateamicroswitchthatcyclestheunitthroughtheavailablesetup

memories.

Ifonlyonememoryhasbeensetup(whichisfairlytypical),pressingthis

buttonwilltoggleMultEQXTonandoff.Ifmultiplesetupshavebeen

stored,pressingthisbuttonwillcyclethroughtheavailablesetupsinorder,

endinginthesamebypassmodefortheroomcorrectionpriortostarting

thecycleoveragain:

• SetupMemory1

• SetupMemory2(ifavailable)

• SetupMemory3(ifavailable)

• BypassMultEQ

Please refer to owner's manual

for fuse replacement

RS232

ON/OFF

~ AC INPUT

USB 12v trigger

SC-1 System Controller

made in USA

www.wisdomaudio.com

INPUTHIGH OUTLOW OUT

SUB

OUTS

RCSL SR SBL SBR Sub1 Sub2 Sub3

in out

Manufactured under license from Audyssey Laboratories.

U.S. and n patents pending.

MultEQ XT is a trademark of Audyssey Laboratories.

RCSL SR SBL SBR

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

O 100-120V, 50-60 Hz, @ < 0.5A

O 200-240V, 50-60 Hz, @ < 0.25A

Voltage set at factory for destination country

s/n:

FUSE REPLACEMENT

100-120V

T 500mA L 250V

200-240V

T 250mA L 250V

 











Rear Panel

 Caution! Turnoffyourpowerampliersbeforeattemptingtoconnect

anythingtoyourWisdomAudioSC-1.

1 7.3 Channel Inputs

TheSC-1supportsmultichannelsystemsofupto7.3channelcongura-

tions;thatis,youmayhaveasmanyassevenmainchannelsandthree

independentsubwooferchannelscontrolledbytheSC-1.Thesetenbal-

ancedaudioinputsacceptsignalsfromapreamplier/processorwith

balancedoutputsviahighqualityXLRconnectors.

ThepinassignmentsoftheseXLR-typefemaleinputconnectors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.Refertotheoperatingmanualofyourbal-

anced-outputpreampliertoverifythatthepinassignmentsofitsoutput

connectorscorrespondtoyourWisdomAudioSC-1.Ifnot,wirethe

cablessothattheappropriateoutputpinconnectstotheequivalentinput

pin,inordertopreservethepolarityofthemusicalsignal.

Connecttheoutputofyourpreamp/processortothesebalancedXLR

inputs.Theinputsareinthefollowingorder,fromlefttorightasseenfrom

behindtheSC-1:Left,Right,Center,SurroundLeft,SurroundRight,Sur-

roundBackLeft,SurroundBackRight,Sub1,Sub2,Sub3.

Duringcalibration,theLeftinput(inthetopleftcornerasseenfrom

behindtheunit)isalsousedbyyourinstallerforconnectingtheoutputof

thecalibratedmicrophonethatmeasurestheroom’sresponse.

 Caution! DonotconnectthecalibratedmicrophonetotheLeftinputinput

oftheSC-1untilinstructedtodosoapartoftheMultEQ®Pro

softwareapplication.

DoingsobeforecompletingtheProductSelectionscreenaspart

oftheMultEQProapplication(seeProduct Selection,page31)

willcausemicrophonefeedbackatlevelsthatcoulddamagethe

speakers.

Using single-ended preampliers Ifyourpreamplier/processordoesnothavebalancedoutputs,theadapter

usedtoconvertfrombalancedtosingle-endedshouldtiePin1andPin3

(theinvertedsignal)together.Thiscaneasilybecheckedwithanohmme-

ter:theimpedancebetweenPin1andPin3shouldapproachzero.Note

that the most suitable adapter on the input side of the SC-1 is different

than the appropriate adapter on the output side, due to the SC-1’s high

input impedance.Shouldyouneedthem,properlywiredadaptersare

availablefromWisdomAudioforanominalcharge.

2 7 Channel High (Planar) Output

Thesesevenbalancedaudiooutputscarrytheroom-corrected“highpass”

portionoftheaudiospectrum,andmustbeconnectedtotheampliers

thatdrivetheplanarmagneticpanels.

ThepinassignmentsofthisXLR-typemaleoutput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.Refertotheoperatingmanualofyourpower

ampliertoverifythatthepinassignmentsofitsinputconnectorscor-

respondtoyourWisdomAudioSC-1.Ifnot,wirethecablessothatthe

appropriateoutputpinconnectstotheequivalentinputpin,inorderto

preservethepolarityofthemusicalsignal.

Using single-ended ampliers Ifyourpoweramplierdoesnothavebalancedinputs,theadapterused

toconvertfrombalancedtosingle-endedmust“oat”Pin3(theinverted

signal).Thiscaneasilybecheckedwithanohmmeter:theimpedancebe-

tweenPin3andeitherthecenterpinortheshieldskirtontheRCAshould

beinnite.TyingtheoutputofPin3toground(asmanyadaptersdo)will

compromisetheperformanceoftheSC-1,duetoitslowoutputimped-

ance.Note that the most suitable adapter on the input side of the SC-1 is

different than the appropriate adapter on the output side, due to the SC-1’s

low output impedance.Shouldyouneedthem,properlywiredadapters

areavailablefromWisdomAudioforanominalcharge.

3 7 Channel Low (Woofer) Output

Thesesevenbalancedaudiooutputscarrytheroom-corrected“lowpass”

portionoftheaudiospectrum,andmustbeconnectedtotheampliers

thatdrivethewoofersectionsoftheloudspeakers.

ThepinassignmentsofthisXLR-typemaleoutput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areusedwiththepurpose-designedSA-

seriespowerampliersfromWisdomAudio.Ifyouelecttouseadifferent

amplierforyourwoofers,pleaserefertotheoperatingmanualofyour

powerampliertoverifythatthepinassignmentsofitsinputconnectors

correspondtoyourWisdomAudioSC-1.Ifnot,wirethecablessothatthe

appropriateoutputpinconnectstotheequivalentinputpin,inorderto

preservethepolarityofthemusicalsignal.

Using single-ended ampliers Ifyourpoweramplierdoesnothavebalancedinputs,theadapterused

toconvertfrombalancedtosingle-endedmust“oat”Pin3(theinverted

signal).Thiscaneasilybecheckedwithanohmmeter:theimpedancebe-

tweenPin3andeitherthecenterpinortheshieldskirtontheRCAshould

beinnite.TyingtheoutputofPin3toground(assomeadaptersdo)will

compromisetheperformanceoftheSC-1.Shouldyouneedthem,prop-

erlywiredadaptersareavailablefromWisdomAudioforanadditional

charge.

4 3 Channel Subwoofer Output

Thesethreebalancedaudiooutputscarrytheroom-correctedsub-

wooferoutputs,andmustbeconnectedtotheampliersthatdrivethe

subwoofer(s)inthesystem.

ThepinassignmentsofthisXLR-typemaleoutput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.Refertotheoperatingmanualofyourpower

ampliertoverifythatthepinassignmentsofitsinputconnectorscor-

respondtoyourWisdomAudioSC-1.Ifnot,wirethecablessothatthe

appropriateoutputpinconnectstotheequivalentinputpin,inorderto

preservethepolarityofthemusicalsignal.

Using single-ended ampliers Ifyourpoweramplierdoesnothavebalancedinputs,theadapterused

toconvertfrombalancedtosingle-endedmust“oat”Pin3(theinverted

signal).Thiscaneasilybecheckedwithanohmmeter:theimpedancebe-

tweenPin3andeitherthecenterpinortheshieldskirtontheRCAshould

beinnite.TyingtheoutputofPin3toground(assomeadaptersdo)will

compromisetheperformanceoftheSC-1.Shouldyouneedthem,prop-

erlywiredadaptersareavailablefromWisdomAudioforanadditional

charge.

5 USB Port

ThisUSBportisusedbyyourinstallertoconnectaWindows-compatible

PCforsetupandcalibration.Itprovidestwo-waycommunicationbetween

theSC-1andthecomputerthatisusedforadjustingthemanyparameters

ofthesystemcontroller.

6 RS232 Interface

TheRS232interfaceallowsanexternalcontrolsystemsuchasAMXor

CrestrontocontroltheSC-1.Allbasicoperationalmodesaresupported

(operate,standby,selectingsetupmemories).

WhentheSC-1isrstpoweredup,itwillidentifyitselftothecontrol

systemviatheRS-232port,sendingeither

 WisdomAudioSC-1  or WisdomAudioSC-1

 Ready...    ERROR

…dependingonwhetherthereisatleastonesetupmemorythathasbeen

calibratedandisavailableforuse.(Forproperoperation,atleastonesetup

memorymustbesavedintotheSC-1’snon-volatilememory.)

Thecommandsavailabletoyourcontrolsystemprogrammerareasfol-

lows:

• OPERATE

• STANDBY

• EQ1

• EQ2

• EQ3

• EQOFF

CommandsareterminatedbyeitheraCR(carriagereturn)orLF(linefeed)

character.Communicationparametersare9600,N,8,1.Responsesto

allcommandsareeitherOKorERROR(aswhentryingtoaddressanon-

existentsetupmemory).

ThecalibrationroutinesarenotsupportedviatheRS-232port.Yourin-

stallerwillneedtousetheUSBportforthecalibrationprocess.

7 12v 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

⁄8"(3.5

mm)“mini-jacks”allowothercomponentstobringtheSC-1inandoutof

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

thisturn-onsignalwithothercomponents,suchas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SC-1asyouwouldexpect.

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

secondsaftertheSC-1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com-

ponents,suchastheWisdomAudioSA-seriesofampliers.EachWisdom

AudiocomponenthasashortdelaybuiltintoitsDCtriggersystemtofa-

cilitate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.

8 AC Mains Input, Switch and Fuse Assembly

Aconventional,15-ampereIECstandardpowercordisusedwiththeSC-1.

Ahighquality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.

 Warning! YournewWisdomAudioSC-1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justabovetothepowercordontherear

paneloftheSC-1.Thisswitchmaybeusedtodisconnecttheunitfromthe

ACmainswithouthavingtoactuallyunplugtheSC-1fromthewalloutlet.

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

turntheSC-1completelyoff,youmayeitherunplugtheSC-1oryoumay

usetheAC mains switch.

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

yourSC-1.DonotattempttoopenanyportionoftheSC-1’scabinet.

Therearenouser-serviceablepartsinsideyourSC-1.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simple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).

Finally,theWisdomAudioSC-1incorporatesafuseblockthatprotectsboththe

liveandneutral(ground)sidesofthecircuit.IfyourSC-1ispluggedintoanAC

outletthatyouknowislive(plugalampintoitasatest),andyetappearstobe

off,checkthefollowing:

1 ChecktheACcordtomakesureitisnotdamaged.

2. ChecktheACmainsswitchtoensurethatitisOn(theside

withthestraightlineisdepressed,notthe“O”side).

3. Ifthatdoesnotresolvetheproblem,turnOfftheACmains

switch(“O”)andthendisconnectthepowercordfromtheAC

mainsreceptacle.

4. Usingasmallscrewdriver,gentlypryopenthefuseblockcover

atthetopedgeoftheassembly.(Youmaybeabletodoitwith

justyourngernail.)

5. Pullouttheredfuseblock,andcheckbothfuses.Ifeitheris

blown,pleasecontactyourlocalWisdomAudiodealer(or

WisdomAudio)forservice.

Introduction to Room Acoustics

WisdomAudiobelievesinequalization.Assumeforamomentthatyouhad

a“perfect”loudspeaker:assoonasyouplaceitinyourroom,itsperfectionis

gone.Infact,evengoodroomsoftenintroducedeviationsof20dBtothere-

sponseofthesystem.

Itseemsstrangetoustoworryabouttenths-of-a-decibeldifferencesbetween

onecomponentandanotherwhenthereare10-20dBproblemsrighttherein

theroomwithyou.

Atthesametime,roomequalizationisnotapanacea.Itdoesnotsolveallprob-

lems.Infact,andsomewhatparadoxically,EQworksbestwhenithastheleast

todo.Itisbestusedasthe“nishingtouch”onanotherwisegoodsystem.Un-

fortunately,mostpeopledonotunderstandthatthemostimportantcomponent

intheirsystemistheirroom.

Thismanualdoesnothavethespaceforafulldescriptionofeverythingthat

goesintocreatingexcellentroomacoustics;doingsowouldrequireatextbook

ofseveralhundredpages.Instead,wewillgiveyousomeideas,andsomerefer-

encestopursueshouldyouwanttolearnmore.

Start With the Room Therearemanymythsoatingaroundpertainingtowhata“goodroom”should

belike.Oneofthemostcommonisthatitshouldhavenon-parallelwalls.

Withoutgoingintothedetails,werecommendstayingwithrectangularrooms

whosedimensionsdonotsharecommondivisors.

Thusaroomwithdimensionsof8'by16'by20'wouldbequitepoor(sincethe

dimensionsarealldivisiblebyalengthof4',and16isalsomultipleof8).By

contrast,aroomwhosedimensionsare9'by16'by29'wouldbemuchbetter,

sincenoneofthedimensionsaremathematicallyrelatedtooneanother.

Thereareinnitevariationsonthisidea.Ifyouhavetheexibilitytochoose(or

modify)yourroomdimensionstoavoidsuchproblems,doso.Eitherway,our

roomcorrectionwillbeabighelp.

Rigid Walls Anothermyththatshouldbedispelledisthenotionthatthewalls(andceiling

andoor)oftheroomshouldbeextremelyrigidinordertoreproducegood

bass.Rigid,inexiblewallsreectenergyextremelywell;thusyouwillkeep

moreofthebassenergyintheroom.Thismuchistrue.However,thoserigid

wallswillonlyincreasetheamplitudeofthestandingwavesthatyourroom

naturallysupports.Insimpleterms,youwillhavemorebass,butitwillalsobe

more irregular,withlargerpeaksandvalleysintheresponse.

Wallsthatexabit(butdonotrattle)aremuchbetter.Coincidentally,tradition-

alAmericanresidentialconstructionstandards(sheetrockonwoodenstuds)are

notabadplacetostart.Youcandobetterstillwithprofessionalhelp,butstuds

andsheetrockarebetterthanpouredconcrete.(Ifyourlisteningroomisinthe

basement,afalsewallcaneasilybebuiltinfrontoftheconcrete.Youprobably

needsomethinglikethisforinsulationandaestheticsanyway.)

Theultimateindedicatedlisteningroomconstructioninvolvesthedesignand

constructionofoatingwalls,ceilingandoor.Thisapproachyieldstheadded

benet(whendoneproperly)ofprovidingoutstandingacousticisolationfrom

adjacentspacesaswellassuperbbassreproduction.Thisapproachgoeswell

beyondthescopeofanowner’smanual;ifyouareinterested,youshouldcon-

tactaprofessionalacousticianwhohasspecializedindomesticlisteningroom

design.

Main Speaker Placement Withintheroomitself,placementofthespeakersandthelistenerwillhavea

profoundeffectontheperformanceofthesystem,particularlybelow300Hz

orso.Thereisno“perfect”positionthatwillsolveallproblems,butndingthe

bestcompromisewillmakeiteasiertosolvetheremainingproblemswiththe

SC-1.

YourWisdomAudiodealercanhelpyouwithoptimizingyourspeakerplace-

ment,whichisneverquiteassimpleasitseemsitshouldbe.Thecharacteristics

youshouldlistenforareseveral:

• Stable, 3-dimensional stereo imaging

Thisusuallyrequiresreasonablesymmetrywithintheroom,and

abitofspacebetweenthespeakersandadjacentsidewalls(to

minimizetheadverseeffectsofearlyrstreections).Mono

(correlated)pinknoisecanhelphere,thoughitdoesnotreplace

listeningtomusic.Withpinknoiseplayinginbothspeakers,you

shouldhearatightly-denedlittle“ball”ofpinknoiseoatingin

spaceexactlyhalfwaybetweenthespeakers.

• Smooth, consistent bass

Oft-citedrulesofthumbforsmootherbassreproductioninclude

both“placingthespeakersatdifferentdistancesfromtheside

wallsvs.thewallbehindthem,”and“placingthemat‘oddfrac-

tions’oftheroom’sdimensions”(e.g.,fractionsinwhichthe

denominatorisanoddnumber,like

⁄3,

⁄5,

⁄7,etc.).Butnothing

replacesyourexperienceinyourroom,combinedwithyourdeal-

er’sexperienceinavarietyofrooms.Playingpinknoisethrough

thewoofersectionsofyourWisdomAudiospeakers(withthemi-

crophoneatthelisteningposition,andpriortodoinganyequal-

ization)andwatchingtheresultsonaRealTimeAnalyzer(RTA)

willletyouseetheresultsofyourlabors.

• Center channel height

Onceyouhaveasolidstereoimageupfront(whenlisteningonly

totheLeftandtheRightspeakers),youneedacenterchannel

speakerformultichannelreproduction.Itshouldbecenteredbe-

tweentheLeftandRight,andcenteredonthescreen’slocation,

preferablyatthesameheightastheLeftandRightspeakers.This

presentsanobviousproblem:youcannotplaceaspeakerinfront

ofyourtelevisionscreen.Onesolutionistolocateitbehindan

acousticallytransparentfrontprojectionscreen.Apartfromsuch

anarrangement,trytominimizethechangeinimageheightasa

soundispannedacrossthefrontstage.

• Surround channel geometry

Ina5.xchannelsystem,thesurroundshouldbeplacedeitherdi-

rectlytothesidesoforslightlybehindthelisteningarea(90°–115°

fromthecenterchannel,asseenfromabove).Ina7.xsystem,the

surroundspeakersshouldbecloserto90°fromthecenterspeak-

er,andthesurroundbackspeakersshouldbeatapproximately

130°–150°fromthecenterspeaker.Thisconformstoindustry

standards,andensuresthatyouhearwhatwasintendedfroma

spatialplacementpointofview.(Toooften,thesurroundspeakers

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Wisdom Wands SC-1 User manual

Brand: Wisdom Wands

Model: SC-1

Category: Supplementary music equipment

Type: User manual

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Wisdom Wands SC-1 User manual

Wisdom Wands SC-1 User manual

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