Manual
System Configuration
Toadjustand calibratethe output levels,follow
thesesteps.Foraccuratecalibration,it is a
goodideato maketheseadjustmentswhile
seatedin your favoritelistening _osition:
I. Putthe AVR120 in the DolbyProLogic
modeby pressingSurround Mode
Selector [] onthe front panel,or b)
pressingthe SurroundMode Selector
on the remote,until PRO LOGIC
I I scrollsacrossthe Main Information
Display[] andthe Pro Logic II
Indicatorsri_lEl_ light.
for eachchannelto beginto bring them to 3.Subtractthedistanceto the surroundspeak-
the samelevel. %te that when one of the ersfromthe distanceto the front speakers.
buttonsis pushed,thetest noisecircula- a. Whensetting the delaytime for the
tion will 3auseon the channelbeing DolbyDigitalsurroundmodes,the opti-
adjustedto giveyoutime to makethe maldelaytime isthe resultof that sub-
adjustment.Whenyoureleasethe button, traction. :or example,if the front speak-
the circulationwill resumeafter 15seconds.
ersare tenfeet awayandthe surround
5. Continueto adjustthe individualspeakers
until theyall havethe samevolume.Note
that adjustmentsshouldbe madewith the
&IV Buttons_I_ on the remoteor
the Selector Buttons [] onthe front
speakersarefive feet away,the optimal
delaytime isfiguredas 10-5=5. Thus,in
this example,the delaytimefor Dolby
Digitalshouldbeset at five milliseconds.
3.Whensetting thedelaytime for the
panelonly,NOTthe mainvolumecontrols. ProLogicII mode,take the resultof the
Thenpressthe Set Buttoni[_ to subtractionand add 15to obtainthe
memorizethe change.If you are usinga oatimaldela,ytime. Forexample,ifthe
soundpressure(SPL)meterfor precise front speakersareten feet away andthe
leveladjustment,setthe volumeso that surroundspeakersare five feet away,the
the meter reads75dB,C-WeightingSlow. optimal delaytime isfiguredas
NOTE:Thesubwooferoutput levelis not 10-5+15=20. Thus,in this example,the
adjustableusingthe testtone.To change ProLogicdelayshouldbeset at twenty
the subwooferlevel,follow the stepsfor milliseconds.
OutputLevelTrimAdjustmenton page26. NOTE:TheTheaterand Ha modesusea fixed,
6.Whenyou haveadjustedthe output so nonadjustabledelaytime.
2. Pressthe TestButton _ onthe remote.
T - T FL ndB will appearinthe Main that all channelshavethe samelevel, TheDolbyDigital modealso includesa separate
Information Display [] andthe letters pressthe TestButton i[_ onthe remote settingfor the center-channelde]a'ymode,since
F L will flashonceeachsecond, to completethe adjustment, the discretenatureof thesesignalsmakesthe
3.Thetest noisewill immediatelybeginto Delay Settings locationof the center-channelspeakermore
circulateamongthe speakersin a clock- Dueto the differentdistancesbetweenthe critical.Tocalculatethe delayfor the center
wise rotation,pausingat eachpositionfor front-channelspeakersandthe listeningposi- channel,measurethe distancefromthe pre-
three seconds.Asthe test noiserotates, tion comparedto the surroundspeakersand ferredlistening3ositionin the centerof the
the speakerpositionwill beshownin the the listeningposition,the amountof time it roomto both the center-channelspeakerand
Main Information Display []. takesfor soundto reachyour earsfrom the eitherthe left or right speaker.
front or surroundspeakersmaydiffer.Youmay If the distancesare equal,no furtheradjust-
compensatefor this differencethrough the use ment is requirecandthe centerdelayshouldbe
of the delaysettingsto adjustthe timing to set to zero.If the distanceto thefront speakers
tailor the s_ecificspeakerplacementand
acousticconditionsin your listeningroomor
hometheater.
NOTE:Thisis a good time to verifythat
the speakershavebeenpropertyconnect-
ed.Asthe test noisecirculates,listento
makecertainthat the soundcomesfrom
the speakerpositionshownin the Main
InformationDisplay.If the soundfrom a
speakerlocationdoesNOTmatchthe posi- Thefactory settingis appropriatefor most
rooms,butsomeinstallationscreateanuncom-
tion indicatedin the display,turn the
mon distancebetweenthefront and surround
AVR120 off usingthe Main Power
Switch [] and checkthe speakerwiring speakersthat maycausethe arrivalof front-
is greaterthan the distanceto the center
speaker,you maywishto repositionthe speak-
ersby movingthe front-left and front-right
speakerscloserto the listeningpositionor the
centerspeakerfurther awayfrom the listening
position
If repositioningof the speakersis not possible,
to makecertainthat eachspeakeris con- channelsoundsto becomedisconnectedfrom adjustthe centerdelaytime, addingone mil-
nectedto the correctoutput terminal, surround-channelsounds, lisecondof center-channeldelayfor everyfoot
4.After checkingfor speakerplacement,let To resynchronizethe front andsurroundchan- closerto the listenincpositionthe center
the test noisecirculate,and listento see nels,follow thesesteps: speakeris than the front speaker.Forexample,
if the front-left andfront-right speakersare
which channelssoundlouderthan the oth- 1.Measurethe distancefrom the listening, each 10 feet fromthe listeningpositionand the
ers.Usingthefront left (FLin thedisplay) viewingpositionto the front speakers, center-channelspeakeris 8 feet away,the delay
speakerasa reference,pressthe Air 2. Measurethe distancefrom the listening/ is figurec as 10-8=2, suggestincanoptimal
Buttons_I_ on the remoteor the viewing positionto the surroundspeakers, centerdelayof 2 milliseconds.
Selector Buttons [] on the front panel
19 SYSTEMCONFIGURATION