Emotiva 12 User manual

Category
Subwoofers
Type
User manual

This manual is also suitable for

2
EmotivaUltraSeriesSubwoofersTableofContents
SAFETYPRECAUTIONS 4
NEC(NationalElectricalCode)Standards
ANotefortheCableTelevision(CATV)Installer
AntennaGroundingOutsidetheHouse
6
6
6
ThankYouForYourPurchase 7
EmotivaUltraSubw oofersOverviewandFeatures 8
Specifications 8
UnpackingYourUltraSubwoofer
Inventory
9
9
ComponentDescriptionsandDiagram 10
BackPanelControlsDescriptionsandDiagrams 11
ConnectionConsiderations 13
ConnectingtoaStereoPreamplifier(withDiagram) 13
UsinganUltraSubwooferinaMultiChannelSystem(Diagram) 14
PlacementTips(withDiagram) 15
UsingLowPassFiltersandSettingtheCrossoverFrequency 16
SettingthePhaseControl 16
UsingMultipleSubwoofersinaMultiChannelSystem 17
TroubleshootingGuide
NoSound
TurnonandTurnoffThumps
“Hum”Noises
OtherProbableCausesofNoise
ProblemswiththewholeA/VSystem
18
18
18
18
19
19
LimitedWarranty 20
ServiceAssistance 20
EmotivaDisclosure 20

3
SAFETYPRECAUTIONS
ReadthisUser’sGuidethoroughlybeforeattemptingtoinstallandconfigureyourUltraSubwoofer.Allthesafetyand
operationinstructionsshouldbereadbeforeanyoperationofthecomponent(s)begin.Aftersuccessfulinstallationand
configurationoftheSubwoofer,besuretoretainthismanualinasafeplaceforfuturereference.
Thefollowingsituatio
AllwarningsontheSubwooferandinthisOperationManualshouldbefollowed.Safetyisakey
componenttoalonglasting,troublefreeinstallation.Thevastmajorityofthesafetyprecautionsare
simplycommonsense.Ifyoudon'tfeelcomfortableperformingtheinstallationofaudio/video
entertainmentequipment,itisadvisedthatyouseektheservicesofaqualifiedinstallationprofessional.
NEVERuseUltraSubwoofersnearwater,suchasabathtub,washbowl,kitchensink,laundrytub,inawet
basement,ornearaswimmingpool,etc.Thereisariskofelectricshocktoyourbodyandpermanentdamagetothe
equipment.Electricshockmayresultinpermanentbodilyinjuryordeath.
ThisSubwoofershouldbeinstalledinalocationwhichprovidesadequateventilation.TheSubwoofershouldbesituated
awayfromheatsourcessuchasradiatorsorotherheatproducingdevices.
UltraSubwoofersshouldbeconnectedonlytoapowersupplyasdescribedinthisOperationManualorshownonthelabel
locatedonthebackofthesubwoofer.Thepowercordshouldberoutedsothatitavoidshighfoottrafficareas;and,
placementofthepowercordshouldavoidlocationswhereheavyitemsmaybeplaceduponoragainstit.Specialattention
shouldbegivenwherethepowercordwillplugintothewalloutlet,conveniencereceptacles,andthepointwherethepower
cordattachestothesubwoofer.
Thepowercordofthesubwoofershouldbeunpluggedfromtheoutletwhenunusedforalongperiodoftime.Neverspray
liquidsdirectlyontothecomponent.CareshouldbetakensothatsmallobjectsdonotfallintotheinsideoftheSubwoofer.
nsrequireyourUltraSubwooferisservicedonlybyqualifiedservicepersonnel:
Thepowersupplycordortheplughasbeendamaged;or
Objectshavefallen,orliquidhasspilledintothecomponent;or
TheUltraSubwooferhasbeenexposedtorain;or
TheUltraSubwooferdoesnotappeartooperatenormallyorexhibitsamarkedchangein
performance;or
TheUltraSubwooferhasbeendropped,oritsenclosureisdamaged.
TheusershouldnotattempttoservicetheUltraSubwooferbeyondthemeansdescribedinthisOperationManual.
AllotherservicingshouldbereferredtoEmotiva'sservicepersonnel.
4
Topreventelectricshock,donotusethispolarizedplugwithanextensioncord,receptacleorother
outletunlessthebladescanbefullyinsertedtopreventbladeexposure.
GroundingorPolarizationPrecautionsshouldbetakensothatthegroundingorpolarizationmeansof
thecomponentisnotdefeated.
ThisapparatusdoesnotexceedtheClassA/ClassB(whicheverisapplicable)limitsforradionoiseemissionsfromdigital
apparatusassetoutintheradiointerferenceregulationsoftheCanadianDepartmentofCommunications.
Forquestionsregardingservice,pleasecontact:
877EMOTECH(8773668324)|[email protected]|www.emotiva.com
WARNING:TOREDUCETHERISKOFFIREORELECTRICSHOCK,DONOTEXPOSETHIS
APPLIANCETORAINORMOISTURE.
CAUTION:TOPREVENTELECTRICSHOCK,MATCHWIDEBLADEOFPLUGTOWIDESLOT,
FULLYINSERT.
5
NEC(NationalElectricalCode)Standards
ANotefortheCableTelevision(CATV)Installer
ThisreminderistocalltheCATVsysteminstaller’sattentiontoArticle82040oftheNECthatprovidesguidelinesforproper
groundingandinparticular,specifiesthatthecablegroundshallbeconnectedtothegroundingsystemofthebuildingas
closetothepointofcableentryaspractical.
AntennaGroundingOutsidetheHouse
Ifanoutsideantennaisconnectedtothereceiver,besuretheantennasystemisgroundedsoastoprovidesomeprotection
againstvoltagesurgesandbuiltupstaticcharges.Article810oftheNationalElectricalCode,ANSI/NFPA70,provides
informationwithregardtopropergroundingoftheleadinwiretoanantennadischargeunit,connectiontogrounding
electrodes,andrequirementsforthegroundingelectrode.
Alwaysobserveproperantennaorsatellitedishgroundingtechniques.Whenlightningstrikesthereisalwaysthepossibility
thatyourantennaordish(mountedhighontheroof)canbecomeaconduitforlightningandelectricallydamageany
equipmenttowhichit’sconnected.Additionally,propergroundingofferssafetytothepeopleusingtheaudio/videosystem
intheeventofanelectricalproblem.
6
ThankYouforyourPurchase!
We’rehappyyouchoseEmotivaAudio!Webelieveourproductssetanewstandardforperformanceandvalue.
UltraSubwoofers,whileaffordableandsimpletosetupanduse,areconstructedfromhighqualitycomponentsandoffer
audiophilelevelsoundquality.Theyincorporateadvancedtechnologiesanddesignandwilltransformyoumusicandmovie
experiencebyaddingimpact,excitement,anddepth.
Ourstaffisaphonecallaway,readytoassistyouifneeded.Westandbehindourproducts100%,andweknowthatearning
yourtrustandongoingsupportrequiresonourcontinuedcommitmenttoexcellenceeveryday.
Emotivastartedwithanideaaudioenthusiastsandengineersbuildinggearthatsatisfiedtheirownhighstandards,and
sharingitwithfellowmusicandmovielovers,withnooneinthemiddle.Wehaveasimplevision;bringtoyou,our
customersandfriends,thebestpossiblegearatthelowestprices.
WewishyoumanyhoursofenjoymentwithyournewEmotivapurchase.Welcometothefamily!
DanLaufman,
President,EmotivaAudioCorporation
7
EmotivaUltraSubwoofersOverviewandFeatures
UltraSubwoofersaredesignedtoadddynamic,solidbasstoyourhometheaterandmusiclisteningexperience,while
maintainingaccurate,extendedfrequencyresponse.AllEmotivaloudspeakersareextremelyefficient,allowingyouto
maximizepowerandperformanceinanylisteningsituation.ThecompactcabinetsizemakestheUltraSubsanidealchoice
forsystemsemployingmultiplesubwoofersetups.
KeyfeaturesoftheUltraSubs:
HighefficiencyClassDpoweramplifierswithexceptionaldynamicheadroom
Highperformancecastframewooferswithmassivemagneticmotorassembly
LongthrowhighBLwooferdesign
Proprietaryparaaramidfiberblendconeanddustcapforaccuratelowfrequencyresponse
Heavydutybutylrubbersurround
Sealed,frontfiringcabinetfortightandextendedlowend
Sophisticateddynamicsprocessingforoptimizedsystemperformance
Elegantsoftcliplimiting
Interchangeablealuminumspikesornonmarringrubberfeet
XLR/BalancedandRCA/Unbalancedinputconnections
RotarycontrolsforCrossoverFrequency,Volume,andPhase
Compact,manageablecabinetsize
Autoturncircuitry
Removablegrills
Specifications
PowerOutput:
USub10‐300watts
Usub12500watts
TypicalInRoomFrequencyResponse:
USub10:25Hz200Hz
Usub12:22Hz200Hz
TypicalInRoomSPL:
USub10:107110db
Usub12:109112db
BalancedInput:3V
UnbalancedInput:1.25V
PhaseAdjustment:0180degrees
XOver:50150Hz(24dbperoctave)
Dimensions:
USub10:12.5”widex12.5”highx13.5”deep
USub12:14.5”widex14.5”highx15.25”deep
Weight:
USub10:30.5lbs.
USub12:38lbs.
8
UnpackingYourUltraSubwoofer
AllEmotivaSubwoofersaredoubleboxedtosurvivetherigorsoflongdistanceshippingtoassureyouofundamageddelivery.
Theouterboxmayshowwearandtear,butthisisnocauseforalarm.Theouterbox’spurposeistoprotecttheinnerbox.If
theinnerboxlooksheavilydamagedorpenetrated,andyouareconcernedaboutdamagetotheSubwoofer,pleasecall
EmotivaTechnicalSupportat8773668324(877EMOTech).
Insidethelaminatedinnerbox,theSubwooferissecurelyseatedbetweentotworeinforcedpiecesofhighdensityimpact
foam.Atfirstglance,thecardboardbackingonthefoammaygivetheappearanceofathirdbox,butitiseasilyliftedto
revealtheSubwoofer,whichiswrappedinstaticfreeplastic.Itisrecommendedthattheplasticsheetingberemovedafter
thesubwooferisliftedoutofthebox.
Inventory
IncludedwithyourUltraSubwoofershouldbeanIECClass1,2prongpowercord,andthisUser’sGuide.
ItisimportanttosaveallthepackingmaterialsandtheboxesincaseyourUltraSubwoofereverneedstobemoved,or
moreunlikely,shippedforusforservicing.
9
ComponentDescriptionsandDiagram*
1.MDFlaminatedcabinet
Criticallybracedfordurabilityanddampedtoreduceresonance;itfeaturesafulloneinchthickbaffle
2.Rubberbootedgrillmounts
Mountsholdlowlustergrillssecurelyinplaceandpreventunwantedvibration.
3.Proprietaryparaaramid
blendreinforcedpaperwooferanddustcap
Thehighperformanceconedecreasesunwantedresonancesandactslikearigid,nearlyperfectmovingpistonatlow
frequencies.Thewooferisreinforcedwithparaaramidfibers(triplewovensyntheticpolyamidesusedinmanyindustrial
products,includingbulletproofvests)foraddedstrength,flexibility,andresilienceovertime.
4.Heavydutybutylrubbersurround
Preciselypositionstheconeassemblyandprovidesanidealedgeterminationtodecreaseunwanteddistortionathigh
excursions.ThelargeextendedhalfrollallowsgreaterXmax.
5.Threaded,interchangeablefeetandspikes
EachUltraSubwoofercomeswithtwocompletesetsofthreaded,interchangeablefeet;aconical,brushedaluminumset,and
ahighdensityrubberset.Theconicalfeetaidincouplingtoafloorcoveredbycarpet,whiletherubberfeetprotect
hardwoodortilefilesfromscratching.
(Illustrationaboveshowsaluminumfeet)
*Asinglesubwooferisshownfordescriptionpurposes.
TheUltra10andUltra12differincabinetsize,woofersize,andamplifierwattagebutallotherfeaturesarethesame.
10
BackPanelControlsDescriptionsandDiagrams
1.XLR/BalancedInput
InputforanXLR/Balancedconnection.ConnectstoyourpreamplifierorprocessorsubwooferoutputwithanXLR/Balanced
cable.
2.RCA/UnbalancedInputs
InputforanRCA/Unbalancedconnections.Connectstoyourpreamplifierorprocessorsubwooferoutputwithan
RCA/Unbalancedcable.Botharemonoinputsandcanbeusedsinglywithapreamplifier/processorthathasasingleRCA
subwooferoutput,orcanbeusedtogetherasasummedinputwithpreamplifiers/processorsthathavedualorleftandright
subwooferoutputs.
3.LowPassFilter
TheLowPassFilterdirectsthefrequenciesthatarepassedthroughthesubwoofer.Forexample,acrossoverpointsetto
50Hzonlyallowsfrequenciesof50Hzorlowertopassthroughthesubwoofer.Acrossoverpointof100Hzonlyallows
frequenciesbelow100Hz,andsoon.ThehighertheLowPassFilterfrequencyisset,thewidertherangeoflowfrequencies
thatareallowedtopassthroughthesubwoofer.ThereisnorightorwrongadjustmentfortheLowPassFilter.Yourmain
speakers,room,orpersonaltastemaydictatealowerorhigherLowPasssetting.
Ifyouareusingapreamplifier/processorthatemploysitsownlowpasscontrols,disengagetheLowPassFilteronthe
subwooferbysettingtheswitchto‘BYPASS’,allowingthepreamplifier/processortocontroltheLowPasscrossoverpoint.
NOTE:UsingmorethanoneLowPassFilteratatimeisnotrecommendedasitcancauseinaccuratephaseresponseor
unpredictablephaseshiftinginthepassband.
4.CrossoverFrequencySelector
SelectsthecrossoverfrequencyfortheLowPassFilter,from50Hzto150Hz.Whenusingapreamplifier/processorwithaLow
PassFilter,itisrecommendedthatyousetthesubwooferLowPassFilterto‘BYPASS’andusethefilteronthe
preamplifier/processor.Beginwithacrossoverfrequencyof80Hz,whichisastandardsetting,andmakeadjustmentsas
neededtosuityoursystem,room,responseorpersonaltaste.
WhenusingtheLowPassFilterontheUltraSub,adjusttheCrossoverFrequencycontroluntilthesubwooferbecomeswell
integratedwithyourspeakers.(moreoncrossoveradjustmentsonpage18)
Note:Thiscontrolislogarithmic,meaningasitisturnedtowardhigherfrequencies,thefrequencieschangebyratio,nota
fixedmeasurementorspacingonthedial.
5.VolumeControl
Controlsthesubwoofermainvolume.Ifusingapreamplifier/processortocontrolthemainsubwoofervolume,startwith
settingthesubwoofervolumecontrolatthehalfwaypositionandthenadjustthelevelupordownfromthere.
11
6.PhaseAdjustmentControl
Adjuststhephaseofthesubwooferfrom0to180degrees,relativetothemainspeakers.Asubwooferinproperphasewith
therestofthespeakersinasystemiswellintegratedwiththeoverallsoundstage,addingbassfrequencieswhichseamlessly
blendwiththeotherspeakers.Anoutofphasesubwooferwilldrawattentiontoitselfbyseemingtobedisconnectedfrom
theoverallsoundstage,sometimessoundingdetachedordisconnectedtotheothersystemspeakers.Itwillalsoaffectthe
soundofthesysteminthemidbass;sometimesthisappearstobeasenseofphysicaldistancefromtheotherspeakers.
Toadjustthephaseandproperlyintegratethesubwooferintoyoursystem,startwiththePhaseAdjustmentControlon0,
andgraduallyturntowardsahighernumber,takingtimetostepbackandlisten,untiltheimagingandintegrationseems
correcttoyou.Thispartoftheprocessmaytaketime,justrelaxandenjoytheprocess.
7.StandbyPowerSwitch
Bringsthesubwoofertofullpowerfromstandbymode.YoumayusetheStandbyPowerSwitchintwodifferentways:
1.Whilethesubwooferisinstandbymode,fliptheswitchto‘ON’tobringthesubwoofertofullpower,and‘OFFtoreturnit
tostandbymode.
2.Withthesubwooferinstandbymode,settheswitchto‘AUTO’.Whenthesubwoofersensesanaudiosignalfromthe
preamplifier/processor,itwillautomaticallygotofullpower(modethismaytaketwoorthreeseconds).Aftertenminutes
withnoaudiosignal,thesubwooferwillreturntostandbymode.ThetenminutedelayallowsforyoutochangeCD’s,pause
amovie,etc.,withoutshuttingthesubwooferoffandonrepeatedly.
8.IECPowerCableConnection
9.MainPowerSwitch
TheMainPowerSwitchislocatedtowardsthebottomoftherear
panelofthesubwoofer,towardstheleft.Thisswitchhastwo
positions,markedas‘O’(off)and‘1’(On).Turningtheswitchto‘1’
putsthesubwooferinstandbymode.Tobringthesubwoofertofull
power,turntheStandbyPowerSwitchto‘ON’.
Note:‘Standby’Powerconsumesabout2wattsorlessofpower,
abouthalfofwhataconventionalnightlightconsumes.YourUltra
SubwooferwasdesignedtostayinStandbymodeindefinitelyif
needed.Ifyouareawayfromhomeforanextendedperiodoftime,
youmayconsidersettingthemainpowerswitchto‘0’(Offposition).
12
ConnectionConsiderations
UltraSeriesSubwoofersfeaturebothbalancedandunbalancedconnections(page10,points1&2).XLRconnectionsare
balancedlines,andaredesignedtorejectexternalnoise(frompowercables,EMIandRFIemissions,etc.)toagreaterdegree
thanstandardRCAconnections.Ifyourpreamplifier/processorisequippedwithabalancedsubwooferoutput,itis
recommendedthatyouuseanXLR/Balancedinterconnecttoassurethehighestdegreeofnoiseimmunity.
Beforesettingupyournewsystem,pleaseconsiderthefollowing:
AlwaysmakesurethesubwooferisturnedoffbeforemakingorchangingANYconnections.
Wheneverpossible,routethepowercordsawayfromthesignalcablesorspeakerwirestopreventhumor
interference
.
Alwaysusewellconstructed,100%shielded,oxygenfreecoppercables.
ConnectingtoaStereoPreamplifier
1.XLR/Balancedpreamplifieroutput
2.BalancedInterconnect
3.XLR/Balancedsubwooferinput
4.RCA/Unbalancedpreamplifieroutput
5.RCA/Unbalancedsubwooferinputs
Usingafemaletomalebalancedcable,connect
thebalancedsubwooferoutputonthepreamplifier
(maleconnection)tothebalancedsubwooferinput
onthesubwoofer(femaleconnection).
RCA/Unbalancedconnections(4.5.)maybeusedif
thepreamplifierdoesnothaveabalanced
subwooferoutput.
Note:BothRCAinputs(5.)onyourUltraSubwoofer
aresummedinputs.Eithercanbeusedforasingle
outputtosingleinputconnection.Ifyouareusinga
multichannelaudiovideoprocessorthathasLeft
andRightSubwooferoutputs,connectbothoutputs
tothesubwooferinputsforasummedconnection.
13
UsinganUltraSubwooferinaMultiChannelSystem
ThisdiagramshowsanUltraSubwooferconnectedtoanUMC1AudioVideoProcessor.AnEmotivaXPA5fivechannelamp
isshown,poweringtheleft,center,rightandsurroundspeakers.ThebalancedsubwooferoutputontheUMC1(1.)
bypassestheXPA5amplifierandconnectsdirectlytothesubwoofer(2).
NOTE:YourUltraSubwooferhasitsownpoweramplifier,anddoesnotneedtobeconnectedtoanotheramplifier.A
connectiontoanexternalamplifier’sspeakerterminalcouldresultindamagetoyourUltraSubwoofer.
14
PlacementTips
Whereyouplaceyoursubwooferisasimportantasanyofthevolumeorlowpasssettings.Thisisbecausetheroomitself,
othergear,andevenfurniturecangreatlychangethewaysoundwavespropagateinyourlisteningarea.Certainareasin
yourroommaymagnifytheresonantlowfrequencies,andcertainareasmayminimizethem.Walls,cabinets,shelves,and
otherfurnituremayproduceunwanted‘booming’frequencies.Proximityisusuallytheissueinthiscase.Simplymovingthe
subwooferafewinchesorafewfeetmaycausedramaticchange.
Experimentationisusuallythekeytofindingtherightplacetosetupyoursubwoofer.Don’tbeinarushtogetyoursetup
doneasquicklyaspossible.Takeyourtime,andtryseverallocationsuntilyoufindonethatworksbestforyourroomand
system.AdjustingtheLowPassandPhasingofthesubwooferwillfinetunethesoundonceyouhavedecidedonalocation.
Ifyouhavealisteningareaorsystemsetupthatlimitsyouroptions,andthesubwooferisnotrespondingfavorablyinits
currentlocation,goingthroughtheLowPass/Phase(inthenextsection)adjustmentsarecrucialinachievingawell
integratedsound.
Thediagrambelowshowsaroomwithasevenchannelsystem,andnotesseveralcommonlocationsforsubwoofer
placement.Itisrecommendedthatyoutrythesefirst,butanotherlocationinyourroommayprovetobemoresuitable.
A.,B.,C.,andD.representrecommendedsubwooferlocations.
15
UsingLowPassFiltersandSettingtheCrossoverFrequency
Note:Ifyourpreamp/processorhasitsownLowPassFilter/Crossoversettings,itisrecommendedthatyouusethemto
controlthecrossoverfrequencyonyoursubwoofer.TurntheLowPassFilterswitchto‘BYPASS’(page10,point3).This
disengagesalllowpass/crossovercontrolsonthesubwoofer.Ifyourpreamplifier/processordoesnothaveLowPass
Filter/Crossovercontrols,usethecontrolsonthesubwoofer.
TousetheUltraSubwooferLowPassFilterandCrossoverControls,connectthesubwoofertoyourmultichannelorstereo
system(withallotherspeakersconnectedtotheirrespectiveamplifiersandinworkingorder).TurnthesubwooferVolume
control(page10,point5)onthe‘MIN’(minimum)setting,thenbringthesubwoofertofullpower,andobservethefollowing
steps:
1.TurntheLowPassFilterswitchto‘ON’
2.SettheCrossoverFrequencyto150Hz,thehighestpoint.
3.Withyourpreamplifier,processor,CDplayer,orothermediasource,selectandplayafamiliarpieceofmusic.
4.Keepingthesubwoofervolumedown,raisethevolumeoftherestofthesystemspeakerstoalevelthatisrepresentative
ofyourusuallisteninghabits.
5.UsingthesubwooferVolumecontrol,raisethelevelofthesubwooferuntilitsoundscorrecttoyou(‘correct’inthiscase
referstoyourpersonalpreference).
6.BegintoslowlyadjusttheCrossovercontroltolowernumbers,takingtimetostepbackandlisten.
Rememberthatthecrossoverfrequencydefineswhichfrequenciesarepassedthroughthesubwoofer,andwhicharenot.A
crossoversetto50Hzonlyallowsfrequenciesof50Hzorlowertopassthroughthesubwoofer.Thehigherthesetting,the
morefrequenciesareallowedtopassthrough.ThehighestsettingontheUltraSubwooferis150Hz,whichallowsall
frequenciesbeneath150Hztopassthrough.
Asyoulisten,youarelookingforthemomentwhenthesubwooferseamlesslyintegrateswiththerestofyourspeaker
system.Thesubwoofershouldnotdrawattentiontoitself,butratherseemlikeanextensionofthespeakers,perfectly
blended.Smallersystemspeakerswhichproducearelativelysmallamountofbassfrequenciesmaybenefitfromahigher
crossoverfrequency,whilesystemspeakersthatproducemorebassfrequenciesmaypromptyoutochoosealower
crossoversetting.
YouwillprobablymakeseveraladjustmentstoboththeCrossoverandVolumecontrolsbeforethesubwoofersounds
properlyintegratedwithyoursystem.Besuretotakeafewbreakstorestyourears,andtryseveralpiecesoffamiliarmusic.
Remember,therearenorules.Youmayfavormoreorlessbassthansomeoneelse,andwhatsoundscorrecttoyoumaynot
soundcorrecttoothers.
AdjustingthePhasecontrolmayrequirethatyougothroughthisprocessagainaftertheadjustment.Justbepatientand
you’llgetitright!
SettingthePhaseControl
Beginbysettingthecontrolto0,andstepbacktolisten.Doesthesubwooferdrawattentiontoitslocation,ratherthan
seemlikeanextensionoftheoverallsoundstage?Doesitseemsomewhatdisconnectedfromtherestofthespeakers?Ifso,
begintoturnthePhasecontrol,takingtimetostepbackandlisten,untilthe‘imaging’seemscorrect,andthesubwoofer
blendsintothesoundstageandsoundscorrecttoyou.
16
UsingMultipleSubwoofersinaMultiChannelSystem
ThecompactsizeofUltraSubwoofersmakethemidealforbeingusedinsystemsthatemploymultiplesubwoofers.Thisis
becomingmorecommoninhometheaterenvironments.Actionfilmsandconcerts,especially,cangreatlybenefitfroma
substantialsubwoofersetupthateasilyandcomfortablyfillstheroomduringdemandinglowendsequences.Themost
commonmultiplesubwoofersetupistheuseoftwosubwoofers,aleftsideandarightside,butmanycombinationsare
possible.Ifyouwouldliketouseamultiplesubwoofersetup,checkyouraudiovideoprocessororreceiverandmakesureit
hasmultiplesubwooferoutputs.
Werecommendthatyouinitiallytryaleftside/rightsidesetup.Althoughlowfrequencysoundwavesarenondirectionalin
nature,aleftside/rightsidesetupcangiveyouatrulycohesive,powerful,smooth,andbalancedsoundstage.
Setthecrossover,phaseadjustment,andvolumecontrolsidentically,thenmakeadjustmentsuntilthesubwoofersproperly
integratetoyoursystem.Ifyouareplacingthesecondsubwoofersomewhereelseintheroom(otherthanamirror
placementinrelationtothefirstsubwoofer),orusingmorethantwosubwoofers,experimentingwithvolume,crossoverand
phasecontrolsbecomescrucialinachievingabalanced,wellintegratedsoundforyoursystem.
Again,practicepatience!Itmaytakealittletime,butyou’llendupwithanamazingsoundinghometheaterandmusic
listeningenvironment.
NOTE:Whenusingamultiplesubwoofersetupthatrequiresdifferentvolume,crossoverandphasesettingsbetweenthe
subs,remembertousetheadjustmentcontrolsonthesubwoofersthemselves,insteadofsettingthemtobypassandusing
thecontrolsonyourprocessororpreamplifier.
17
TroubleshootingGuide
UltraSubwoofersareexpertlydesignedandbuilttoprovideyearsoftroublefreeperformance.Mostproblemsthatoccur
canusuallybesolvedbycheckingyoursetupormakingsurethattheaudioandvideocomponentsconnectedtotheamplifier
areonandfullyoperational.
Thefollowinginformationwillhelpyoudealwithothercommonsetupproblemsyoumayexperienceduringnormaluseof
yourunit.Ifproblemspersist,contactEmotivasupportforhelp.
NoSound(fromoneormorespeakersconnectedtotheamplifier)
Theconnectionbetweenthesubwooferandpreamplifier/processormayhavecomeundone.Turnoffyoursystem
andcheckthecables.
Damagedaudiocable.
ApreamplifierMuteswitchmaybeon,anexternalprocessorlooporatapemonitorloopisengaged.
Checkmainpowerswitchtomakesurethatitisinonposition(1).
Aninternalfuseontheunitmayhaveblown.ContactEmotivaSupportforassistance.
TurnonandTurnoffThumps
PlugtheUltraSubwooferintoadifferent115VACoutletthantheamplierpoweringyoursystemspeakerssothere
isnopowerturnonconflicts.
Installalineconditioningdevice.
“Hum”Noises
Thisproblemismorethanlikelycausedbya“groundloop”inyoursystem,ratherthanafaultinthesubwoofer.
Followthesestepstoisolatethemaincauseofthehum;theremayevenbemorethanone.Remembertoturnoff
allcomponentsinyoursystembeforedisconnectingorconnectinganycablesduringtroubleshooting.
Trytohaveallofyourequipmentonthesameelectricaloutletorcircuit.Groupallthelowpowercomponents
(preamp,CDplayer,DVDetc.)onasingleoutletorpowerstrip.Thisisprovidedthattheoverallcurrentdrawfrom
yourequipmentdoesnotexceedtheratingoftheoutletorbreaker.
Disconnectallcables,whichcomefromoutsidetheroom,andcheckifthehumgoesaway.Thisincludessuch
connectionsascableTV,satelliteTV,orrooftopantennas.Makesurethattheyaredisconnectedwheretheyrst
entertheroom,sotheyaremakingnoconnectiontothepreamplifierortheTV,oranyothercomponent.Ifthehum
iscausedbythecableTVline,thenyouwillneeda“groundloopisolator.”Thisisaninexpensivedeviceplacedin
linewiththecoaxialcablefeed.ContactyourCableCompanyorEmotivaforassistance.
DisconnectallconnectionsfromthepreampliertoyourTV,VCRorDVD.
Asatest,disconnectanyothercomponent,whichhasagroundedpowercord.
NOTE:Neverremovethegroundpinfromanypowercords(ifpresent).Thisisverydangerous.
Ifthehumpersists,disconnectallthesourcecomponentsoneatatimefromthebackofthepreamplier,untilyouidentify
theproblem.
18
Groundloopisolatorsareavailableforaudiolinesandvideodevices.Ifyouneedassistance,contactEmotiva.Althoughthisis
notalwaysanidealsolution,thegroundingdifferencesbetweencertainhomeentertainmentcomponentssometimesrequire
groundloopisolators.Thisistheexceptionratherthantherule.
OtherProbableCausesofNoise
SpeakernoisemayalsobecausedbyinterferenceornoiseonyourACline.Makesuretherearenolargeappliances
sharingtheline,orhalogenlampsorlightdimmingdevices.
TryconnectingyoursystemtoanotherACsocketonaseparateline.
Ifthehumisheardfromwithintheamplifier,andnotthroughthespeakers,thismayalsobecausedbyinterference
ontheACorDClines.Thepowertransformersmayturnthisinterferenceintoanaudiblenoise.Internalhumcanbe
madeworsebyashelforcabinetresonating,sotrymovingthesubwoofertoanotherlocation.
TrymovingyourcomponentsfurtherawayfromtheTV,especiallyifyounoticethescreenhaschangedcolorinthe
areaclosesttothecomponent.
Ifyouhaveveryhighefficiencyspeakers,thesemaytendtorevealnoises,whichotherspeakersdonot.
ProblemswiththewholeA/VSystem
Ifyouarehavingmorecomplexproblemsinyouroverallhomeentertainmentsystem(notjustwiththeamplifier),please
contactEmotivaSupportforassistance.877EMOTech(8773668324)
19
20
LimitedWarranty
EmotivaoffersthefollowingwarrantytoownersofUltraSubwoofers:
EmotivaAudiowarrantiesyourUltraSubwoofertobefreefromdefectsinmaterialsandworkmanshipforaperiodoffive
yearsfromtheoriginaldateofpurchase.Thefollowingitemsareexcludedfrom,orwillvoidthiswarrantycoverage:
Damagecausedduringshipmentandhandling.Ifyoureceiveanitemthatyoubelievetohavebeendamagedduring
shipment,pleasecontactEmotivaimmediately.
Phone:877EMOTech(8773668324)/Email:[email protected]
Damagecausedbyaccident,misuseorabusiveoperationcontrarytotheinstructionsspecifiedwithinthismanual.
Unitsthathavehadtheserialnumbersdefaced,modified,orremoved.
Damageresultingfromamodificationof,orattemptedrepairbyanypersonorcompanynotauthorizedbyEmotiva.
Anyunitpurchasedfromanonauthorizeddealer.
Emotivadoesnotassumeliabilityforlossofuse,ordamageto,associatedorconnectedequipment.
ServiceAssistance
PleasenotethatBEFOREsendingyourSubwooferinforrepairyouMUSTcallEmotivaandobtainareturnauthorization
(RMA)number.BeforecontactingEmotivatobegintheRMAprocess,pleasehaveasdetailedadescriptionoftheproblem(s)
youareexperiencingandtheconditionsunderwhichtheproblem(s)occur.Additionally,pleasebesuretocheckthe
troubleshootingguideinthismanualtoruleoutthepossibilityofsomethingsimpleyoumayhaveoverlooked.Many
instancesofperceivedfailurearesimpleoperationalandsetupmistakesandEmotivaishappytoassistyouhoweverpossible.
OnceyouhaveobtainedtheRMAnumber,youmustprintthisclearlyontheoutsideoftheboxsoitwillbepossibleto
determinefromwhomtheunitcameonceitarrives.ParcelsarrivingwithoutanRMAnumberswillberefusedandreturned
freightcollect.
PleasesendyourrepairswithRMAto:
EmotivaAudioCorp.
Attn.:RepairDepartment
131SoutheastParkwayCourt
Franklin,TN37064
Reference(PutyouRMAnumberinthisspot.)
877EMOTECH(8773668324)|[email protected]|www.emotiva.com
EmotivaDisclosure
Copyright2009Emotiva
AllRightsReserved.Emotivareservestherighttomakeimprovementstoitsproductsatanytime.Therefore,the
specificationsoftheproductandthespecificdetailsofthismanualaresubjecttochangeatanytime.
EmotivaandtheEmotiva"E"areregisteredtrademarksofEmotivaAudioCorporation.
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Emotiva 12 User manual

Category
Subwoofers
Type
User manual
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