AMC XIA - Muting, Tape Recording, and Playback

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