AMC XIA Instructions For Installation And Operation Manual
- Category
- Audio amplifiers
- Type
- Instructions For Installation And Operation Manual
IA
XIA
STEREOINTEGRATED
AMPLIFIER
CreateCDqualitysoundfromcomputer&InternetthroughtheUSBlinkingsystem
designedinAMCIASystem
LAN&Internet
NOTEBOOK
USB
WithoptionofUSBconnectorfornetworkingtootherequipment,computer,LAN
andsotheinternet.
FEATURE
2
TheAMCremotecontrollableintegrated
amplifiersXIAofferinaninnovativeand
elegantdesign,anaffordable
combinationofhighqualitysound
reproductionandcomprehensive
facilities.
Theintegratedamplifieracceptsfive
inputs(Phono,CD,Tuner,Aux/USBand
Tape),iscompatiblewithbothmoving
magnetandmovingcoilcartridges,has
fulltapemonitoringcapabilitiesandalso
bothadirectswitch,allowingthetone
controlcircuitrytobeby-passedfor
improvedsoundquality.
Togetthebestfromyouramplifier
pleasestudythismanualcarefully.
Shouldyouexperienceanyproblems,
pleasediscussthemwithyourdealer
whohasafullknowledgeofAMC
productsandtheiruseinavarietyof
systems.
YourAMCamplifierissuppliedsetto
workonyourlocalmainssupply
voltage.Checkthatyourlocalmains
supplyvoltageagreeswiththevoltage
settingindicatedonthebackpanelof
theamplifier.Ifnot,pleasecontactyour
dealerornationaldistributorfordetails
onhowtoproceedfurther.
Note:Allconnectionsmustbe
completedandACSelectorshouldbe
settocorrectvoltagebeforepluggingin
powercordandturningthepoweron.
Ifthemainsplugisfused,fita3amp
fuse.YourAMCamplifiercontainsfuses
whicharedesignedtoprotectthe
amplifierandpreventtheoccurrenceof
adangerousfaultcondition.These
shouldonlybeinspectedandreplaced
byacompetentengineerusingthe
correctreplacementtypes.
*Uniquephonostagedesignthatemploys
twoaudiophilegradeop-ampsper
channelthatprovideverylowTHD,TIM
andnoise,togetherwithswitchable
MM/MCsensitivities.
*Thehighoverloadtonecontrolstagecan
becompletelyby-passedwiththe
DIRECTswitchtogivenaturalsound
quality.
*SpecialdesignedpassiveTonecontrol
circuittogivenaturalsoundquality.
*Usesaudiophilegradecomponents
throughout,providingexceptional
accuracytophonoandtonecontrol
responses.
*Highoverloadmarginontonecontrol
circuitbyvirtueofitstopologies.
*Poweramplifierswith30Amphighpeak
outputcurrentdevicestooffer
capabilitiestodrivealmostalltypesof
speakersystems.
*Poweramplifierswithspecialdesigned
perfectvirtualimagetopologytomakeit
possibletobewithoutoutputrelays.The
topologyconnectsamplifieroutputsto
speakersystemswithoutrelaycontacts
toofferbestpossiblesoundquality.
*Usinghighoutputcurrentdeviceswith
optimizedpowersupplydesigns,the
poweramplifierscanbeonlyprotected
withfusesonpowersuppliersidein
ordertodeliveryextremelyhighoutput
currentindemandtogivesuperbsound
quality.
*Withuniversalpowertransformerpassed
allinternationalsafetystandards,end
userscanusetheunitinallcountriesby
re-settingtheACselecttocorrect
voltage.
*Heavydutygoldplatedspeakerbinding
postsandphonoconnectorsforultra
reliableconnections.
INSTALLATION
FUSES
*AMCXIAisdesignedwithoptionofUSB
connectorfornetworkingtoother
equipments,computer,LANandsothe
Internet.
*AMCXIAcreatesCDqualitysoundfrom
computerandInternetthroughtheUSB
linkingsystemdesignedinAMCIA
system.
INTRODUCTION
1.USB
3.PHONOGROUNDTERMINAL
4.PHONOINPUT
5.AUXINPUT
6.TUNERINPUT
7.CDINPUT
8.TAPEINPUT
9.TAPEOUTPUT
10.PREOUT/MAININ
11.LOUDSPEAKERTERMINALS
12.ACSELECTSWITCH
13.ACSWITCHEDOUTLET
14.ACRECEPTACLE
2.PHONOMM/MCINPUTSELECTIONSWITCH
1.POWERSWITCH
2.INFRAREDRECEIVER
3.BALANCECONTROL
4.PHONES
5.MUTE/NORMAL/DIRECT
SWITCH
6.BASSCONTROL
7.TREBLECONTROL.
8.TAPEMONITORSWITCH
9.INPUTSELECTIONSWITCH
10.VOLUMECONTROL
3
REARPANELCONNECTIONS/FRONTPANELCONTROLS
REARPANEL
FRONTPANEL
1
2 3 54 6 7 8
9
1
2
3
6
45
7
8
9
10
11 12 13 14
10
4
USBCONNECTOR
TheUSBconnectorisforconnectingto
computer,otherequipmentswithUSB,
LANandsotheInternet.
TheanalogoutputoftheUSBconnector
isinparallelwithauxiliaryinput.
PHONOINPUT
Note:
CDINPUT
TUNERINPUT
AUXILIARYINPUT
TAPEINPUT
PREOUT/MAININ
LOUDSPEAKERS
Thisinputissuitableforbothmoving
magnetandmovingcoilcartridges.For
eithertypeofcartridgetheplugsonyour
turntableleadshouldbeconnectedtothe
phonoinputsocketsontherearpanelof
youramplifier.
Tominimizehumtheturntablelead
shouldbekeptawayfromthemains
wiring,andanyseparateturntableground
leadshouldbeattachedfirmlytothe
earthterminalontherearoftheamplifier.
Aswitchadjacenttothediscinput
socketsallowstheselectionofeitherMM
orMCinput.Facingthebackofthe
amplifier,movetheswitchtotherightfor
usewithMMorhighoutputMCcartridges
andtotheleftforusewithnormal(low
output)MCcartridges.
NeveroperatetheMM/MCselector
switchwiththevolumecontrolturnedup
astheresultantelectricalsurgemay
damageyourloudspeakers.
TheCDinputissuitableforusewithany
CDplayer.ConnectyourCDplayertothe
amplifierusingthephonosocketsmarked
"CD".
TheTunerinputissuitableforusewith
mostAM/FMtuners.Connectyourtuner
totheamplifierusingthephonosockets
marked"Tuner".
TheAuxiliaryinputissuitableforusewith
anyextrasourceprocessingalinelevel
output,perhapsasecondtunerorCD
player, oranadditionaltapeorvideo
recorderwiredforreplayonly.
Theauxiliaryinputisinparallelwiththe
analogoutputoftheUSBconnector.
Thisinputissuitableforusewithmost
cassette,reeltoreelorvideorecorders.
Connectthe"record"leadsofyourtape
recordertothephonosocketsmarked
"Tapeout"ontherearofyouramplifier
usingphono/phonoleads.
Connectthe"playback"leadsofyourtape
recordertothephonosocketsmarked
"Tapein"ontherearofyouramplifier
usingphono/phonoleads.Ifyourtape
machineprocessingDINoutputs,then
DIN/phonoleads,oraDIN/phonoadaptor
canbeused.Ifyouexperiencelevel
matchingproblemswhenusingDIN
connectors,pleaseconsultyourtape
machinemanufacturer.
Normallythepre-amplifierandpower
amplifiersectionsofthisunitare
connectedtogetherviafactory-installed
U-shapedmetaljumpersthatbridgethe
PRE-OUTandMAIN-INjacks.Checkto
besurethattheyarefullyinsertedinto
thejacksandthatnothingistouching
them.
ByswitchingOFFthepowerand
removingthemetaljumpers,youcan
connectasignalprocessorsuchasa
surround-sounddecoderoranelectronic
crossoverinthepathbetweenpreamp
andpoweramp.Connectacablefrom
PRE-OUTtotheprocessor'sinputanda
secondcablefromtheprocessor'soutput
toMAININ.
YourAMCamplifierisdesignedtodrive
loudspeakrswithanominalimpedanceof
4-8ohms.
However,XIAcanonlydrive4ohm
speakersbyswitchingtheimpedance
selectorontherearpaneloftheunitto
the4ohmsetting.
5
LOUDSPEAKERCONNECTIONS
Theloudspeakeroutputterminalswill
accept4mm(banana)plugs,spade
connectors,pinconnectorsorbarewires.
Connectthenegativeside(usually
black)ofyourlefthandloudspeakerlead
totheblackterminalofthetwoterminals
marked"left"ontherearofyouramplifier.
Theothersideofyourlefthandspeaker
lead(thepositivesideorred)shouldbe
connectedtotheredterminalmarked
"left".Repeatthisoperationfortheright
handloudspeaker.
YourAMCamplifieriscapableof
generatinghighpeakcurrents,soall
connectionsmustbecheckedtoavoid
inadvertentshortcircuitsandtoensurea
goodcleancontact.
UNDERNOCIRCUMSTANCES
SHOULDTHEOUTPUTSBESHORTED
TOGETHER.
TheACRECEPTACLEisforyoutoplug
inwithpowercordattachedinthe
packingoryoucanpluginwithother
powercordwithyourpreferences.
Suchactionwilldamageoutputcircuitry
andisnotcoveredbyguarantee.
TheACconvenienceoutletisfittedso
thatothercomponentscanbepowered
whenyouramplifierisswitchedon.
UNDERNOCIRCUMSTANCES
SHOULDTHECASEOFTHE
AMPLIFIERBEOPENEDBYANYONE
OTHERTHANAQUALIFIED
ENGINEER,ASDANGEROUS
VOLTAGESAREPRESENTINSIDE.
ANYUNAUTHORISEDREPAIRMAY
INVALIDATEYOURWARRANTY.
TheheatproducedbyyourAMCamplifier
duringnormaloperationisdissipatedby
anduringnormaloperationisdissipated
byaninternalfinnedheatsink.Itis
perfectlynormalforyouramplifierto
becomequitewarmandtoradiateheat
wheninuse,especiallyifitisrunnearfull
power.However,ifitbecomestoohotto
touch,switchoffatonceandcontactyour
dealer.
Itisveryimportantthatthereisadequate
ventilationforthewholeoftheamplifier.
Donotplacetheunitonarugorother
softsurfacethatitcouldsinkinto,
obstructingtheairinletsonitsunderside,
andtakecarenottoobstructtheoutlet
grilleonthetopcover.
ACSWITCHEDOUTLETS
HEATSINK/VENTILATIONREQUIRE-
MENTS
ACRECEPTACLE
ACSelector(115Vor230V)
TheACSelectorwillbesettotheAC
Powervoltageofyourcountryfrom
factory.ButincaseifyourXIAisnot
receiveddirectlyfromfactoryoryoumove
fromonecountrytotheother,theAC
selectormightbesetatdifferentvoltage.
So,beforeplugpowercordintoyourwall
ACoutlet,pleasealwayscheckifthe
Voltageselectorsettothevoltageofthe
countryyouwilluseXIAornotandsetto
correctvoltage.WhentheACSelectorset
to115VAC,theXIAcanbeusedin
countrieswithACPowerVoltagebetween
110Vand120V.WhentheACSelector
setto230V,theXIAcanbeusedin
countrieswithACPowerVoltagebetween
220Vand240V.
6
POWERSWITCH
BALANCECONTROL
INPUTSELECTION
TAPEMONITORSWITCH
Theamplifieristurnedonbydepressing
thepowerswitch.Thesmallindicator
abovetheswitchwillglowblue.Before
switchingon,alwayssetthevolume
controltominimumtoavoiddamageto
yourloudspeakers.
TheBalanceControladjuststherelative
levelsoftheleftandrightchannels.Ithas
noeffectonrecordingsbeingmade.A
detentatthe12o'clockpositionmarks
thepointofequalbalance.Rotationofthe
BalanceControltotheright(clockwise)
decreasestheleveloftheleftchannelso
thatonlytherightchannelisheard.
Rotationtotheleftshiftsthesonicimage
towardtheleftspeaker.
AdjusttheBalanceControltoproducea
naturalspreadofsoundacrossthespace
betweenthespeakers,withany
monophonicsound(suchasaradio
announcer'svoice)appearingasa
phantomimagecenteredmidway
betweenthem.Recordingsoftencontain
smallerrorsinchannelbalance,typically
nomorethan2dB;butthisisenoughto
degradestereoimaging.Small
compensatingchangesinthesettingof
theBalanceControlcansignificantly
improvethedepthandstabilityofthe
stereoimage.
Therotaryinputselectorswitchselects
whichinputsignal(Phono,CD,Tuneror
Aux/USB)isfedtothepoweramplifier.
Theselectedsignalisalsofedtothe
"Tapeout"socketsforrecording.
TheTapeMonitorswitchisgenerallyleft
inthe"Source"position,sothatthe
programeselectedbytheinputswitchis
routedtotheloudspeakers/headphones.
IftheTapeMonitorswitchisturnedtothe
"Tape"position,thesignalfromthetape
recorderisroutedtotheloudspeakers/
headphones.
Ifyourtapemachineisathreeheadtype
suitableforA/Bmonitoring,thenturning
theTapeMonitorswitchtothe"Tape"
positionwillallowfulloff-tapemonitoring
oftherecordedsignaltobecarriedout
viatheloudspeakers/headphones.
Thevolumecontroladjuststheoverall
loudnesslevelofthesound.Ithasno
effectonthelevelofthesignalsfedtothe
TAPEOUTjacksfortaperecording.The
Volumecontrolisdesignedforaccurate
trackingofitstwochannels,sothatthe
stereobalancewillnotshiftnoticeablyas
theloudnessofthesoundisvaried.
ThetonecontrolsonyourAMCamplifier
uselowcolourationpassivecircuitryto
ensuretheminimumdegradationofthe
musicsignal.Theyaredesignedto
graduallymodifythetonalemphasisof
themusicandtocompensateforsuch
problemsasdifficultroomacoustics.
Ifrequired,thetonecontrolscanbe
completelyby-passedwitharesultant
increaseinsoundquality.Todothis
simplyturntheDirect/Muteswitchtothe
"Direct"position.
WiththeDirect/Muteswitchinthe
"normal"position,thetonecontrolswillcut
theirrespectivefrequencieswhenturned
anti-clockwiseandboostthemwhen
turnedclockwise.Theflattestresponseis
foundwhenthecontrolsareinthe"12
o'clockposition.
Theheadphonesocketwillacceptany
headphonesfittedwithastandard
1/4"(6.35mm)stereojackplug.When
Headphonesareinuse,theoutputto
yourloudspeakerswillbecutandallthe
amplifier'sfunctionswilloperateas
normal.
VOLUMECONTROL
TONECONTROLS
PHONES
FRONTPANELCONTROLS
MUTING
TAPERECORDING
PLAYBACK
ByturningtheDirect/Muteswitchto
"Mute"itispossibletocuttheoutputto
yourloudspeakers,afeaturewhichwill
proveusefulinsituationswherealower
volumelevelmayberequiredforshort
periods(e.g.foraphonecallect.)
Allsources,Phono,CD,Tunerand
Aux/USBcanberecordedviathetape
connections.Torecordaninput,select
therequiredsourceandsetyourrecorder
totherecordmode.
Torecordfromonetaperecorderto
another,theplaybackrecordershouldbe
pluggedintotheAux/USBsocket,andthe
recordingmachineintotheTapesocket.
Theinputselectorswitchshouldbe setto
"Aux/USB".Arecordingcannowbemade
inthenormalway.
SettheTapeMonitorswitchtothe"Tape"
positionandsetyourrecorderintothe
playbackmode.
7
8
1.INPUTSELECTOR2.VOLUMECONTROL
Thesebuttonsselectanyoneofthe
eightsourcesthatareconnectedtothe
inputsoftheXIA(PHONO,CD,
TUNER,AUX/USB).
1
2
9
SPECIFICATIONS
WeltronicsCorp.reservedtherighttoimproveitsproductsatanytime.Specificationsare
subjecttochangewithoutnotice.
RatedPowerinto8/4ohms........................................................................45/60W
Withbothchannelsdriven
RatedT.H.D.20Hz-20KHz............................
1KHzclippingpowerinto8/4ohms...........................................................48/65W
Highlevelinputs.........................................................................................23mV/150mV
PhonoinputMM.....................................................................0.5mV/2.7mV
MC............
Highlevelinputs..........................................................................................20Kohms
PhonoinputMM/MC................................................................................47ohms/100pF
Tonebypass20Hz-20KHz.................................................................................+/-0.5dB
Normal20Hz-20KHz...........................................................................................+/-1.0dB
Highlevelinputs-3dB..................................................................................10Hz/60KHz
Highlevelinputs"A"WTD.......................................................................................88dB
Phonoinputs"A"WTD............................................................................................80dB
Separation20Hz-20KHz.......................................................................................>65dB
Bassat100Hz......................................................................................................+/-10dB
Treble at10KHz.................................................................................................-8/+11dB
Overallfeedback................................................................................................26/29dB
Dimensions(WxHxD).........................................................................430x82x288mm
Netweight............................................................................................................8.2Kgs
Shippingweight(4pieces)..................................................................................34.3Kgs
Finish..........................................................................................................blackorsilver
........................................................0.05%
....................................................................0.05mV/0.27mV
InputSensitivityfor1W/RatedPowerinto8ohms:
Inputimpedance:
Frequencyresponse:
Signaltonoiseratio(ref.1W/8ohms):
Tonecontrolrange:
PHYSICAL:
Allthesafetyandoperatinginstructionsshouldberead
beforetheapplianceisoperated.
Thesafetyandoperatinginstructionsshouldberetainedfor
futurereference.
Allwarningsontheapplianceandintheoperatinginstructions
shouldbeadheredto.
Alloperatinganduseinstructionsshouldbefollowed.
Theapplianceshouldnotbeusednearwater-forexample,
nearabathtub,washbowl,kitchensink,laundrytub,inawet
basement,ornearaswimmingpool,etc.
Theapplianceshouldbeusedonlywithacartorstandthatis
recommendedbythemanufacturer.
Anapplianceandcartcombinationshouldbe
movedwithcare.Quickstops,excessiveforce,
andunevensurfacesmaycausetheappliance
andcartcombinationtooverturn.
Thisequipmentisnotdesignedforusemountedonawallora
ceiling.
Theapplianceshouldbesituatedsothatitslocationorposition
doesnotinterferewithitsproperventilation.Forexample,the
applianceshouldnotbesituatedonabed,sofa,rug,orsimilar
surfacethatmayblocktheventilationopenings,orplacedina
built-ininstallation,suchasbookcase orcabinetthatmay
impedetheflowofairthroughtheventilationopenings.
Theapplianceshouldbesituatedawayfromheatsources
suchasradiators,heatregisters,stoves,orotherappliances
(includingamplifiers)thatproduceheat.
Theapplianceshouldbeconnectedtoapowersupplyonlyof
thetypedescribedintheoperatinginstructionsorasmarked
ontheappliance.
Power-supplycordsshouldberoutedsothattheyarenotlikely
tobewalkedonorpinchedbyitemsplaceduponoragainst
them,payingparticularattentiontocordsatplugs,
conveniencereceptacles,andthepointwheretheyexitfrom
theappliance
Theapplianceshouldbecleanedonlyasrecommendedby
themanufacturer.
Thepowercordoftheapplianceshouldbeunpluggedfromthe
outletwhenleftunusedforalongperiodoftime.
Careshouldbetakensothatobjectsdonotfallandliquidsare
notspilledintotheenclosurethroughopenings.
Theusershouldnotattempttoservicetheappliancebeyond
thatdescribedintheoperatinginstructions.Allotherservicing
shouldbereferredtoqualifiedservicepersonnel.
Theapplianceshouldbeservicedbyqualifiedservice
personnelwhen:
a)Thepower-supplycordortheplughasbeendamaged;or
b)Objectshavefallen,orliquidhasbeenspilledintothe
appliance;or
c)Theappliancehasbeenexposedtorain;or
d)Theappliancedoesnotappeartooperatenormallyor
exhibitsamarkedchangeinperformance;or
e)Theappliancehasbeendropped,ortheenclosureis
damaged.
(APPLIESTOTUNERANDRECEIVERSONLY)
Anoutdoorantennashouldbelocatedawayfrompowerlines.
(APPLIESTOTUNERANDRECEIVERSONLY)
Ifanoutsideantennaisconnectedtothereceiver,besurethe
antennasystemisgroundedsoastoprovidesomeprotection
againstvoltagesurgesandbuiltupstaticcharges.
Section810oftheNationalElectricalCode,ANSI/NFPANo.
70-1984,providesinformationwithrespecttoproper
groundingofthemastandsupportingstructure,groundingof
thelead-inwiretoanantennadischargeunit,sizeofgrounding
conductors,locationofantenna-dischargeunit,connectionto
groundingelectrodes,andrequirementsforthegrounding
electrode.SeeFigure.
a)UseNo.10AWG(5.3mm)copper,No.8AWG(8.4mm)
aluminum,No.17AWG(1.0mm)copper-cladsteelor
bronzewire,orlarger,asagroundwire.
b)Secureantennalead-inandgroundwirestohousewith
stand-offinsulatorsspacedfrom4-6feet(1.22-1.83m)
apart.
c)Mountantennadischargeunitascloseaspossibletowhere
lead-inentershouse.
d)UsejumperwirenotsmallerthanNo.6AWG(13.3mm)
copper,ortheequivalent,whenaseparateantenna-
groundingelectrodeisused.SeeNECSection810-21(j).
1.READINSTRUCTIONS
2.RETAININSTRUCTIONS
3.HEEDWARNINGS
4.FOLLOWINSTRUCTIONS
5.WATERANDMOISTURE
6.CARTSANDSTANDS
6A.
7.WALLORCEILINGMOUNTING
8.VENTILATION
9.HEAT
10.POWERSOURCES
11.POWER-CORDPROTECTION
12.CLEANING
13.NONUSEPERIODS
14.OBJECTANDLIQUIDENTRY
15.SERVICING
16.DAMAGEREQUIRINGSERVICE
17.POWERLINES
18.OUTDOORANTENNAGROUNDING
22
2
2
SAFETYINSTRUCTION
S3125A
PORTABLECARTWARNING
AntennaLead
InWire
Ground
Clamp
Electric
Service
Equipment
PowerServiceGrounding
ElectrodeSystem
(NECArt250PartH)
GroundClamps
Antenna
Discharge
Unit(NEC
Section810.20)
GroundingConductors
(NECSection810.21)
AntennaGroundingAccordingto
theNationalElectricalCode
NationalElectricalCode
AvailablefromLibrary,book
stores,orNationalFireProtection
Association(BatterymarchPark,
Quincy.MA02269).
AMC21-3004
PN:21-4160
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
AMC XIA Instructions For Installation And Operation Manual
- Category
- Audio amplifiers
- Type
- Instructions For Installation And Operation Manual
Ask a question and I''ll find the answer in the document
Finding information in a document is now easier with AI