Krell Industries KAV-300r User manual

The Leader MAudio Engineering
KAV-300r
Stereo Receiver
with Theater Throughput
Instructions for Use
Owner’s Reference

KAV-300r
Stereo Receiver
with Theater Throughput
v00.1
KrellIndustries,Inc.
45 ConnairRoad
Orange,CT 06477-3650USA
TEL[phone]
FAX[phone]
[e-mail]
WEBSITEhttp://www.krellonline.com
Thisproductcomplieswith the EMCdirective (89/336/EEC)andthe low-voltagedirective (73/23/EEC).
WARNINGS
TheKAV-3OOrmustbeplacedona firm, level surfacewhereit is notexposedto dripping
or splashing.
Theventilationgridsonthetopof theKAV-3OOrmustbeunobstructedat all timesduringoperation.Donot
placeflammablematerialontop of or beneaththe component.
Donot removeor bypassthe groundpih onthe endof the ACpowercord. Thiscancauseradio frequency
interference(RFI)to beintroducedinto yourplaybacksystem.Operatethe KAV-3OOronly with the power
cordsupplied.
Turnoff all systems’powerbeforeconnectingthe KAV-3OOrto anycompor~ent.Makesureall cabletermina-
tionsareof thehighestquality,freefromfrayedends,shortcircuits, or coldsolderjoints.
Keepanyoutdoorantennaawayfrompowerlines.
IMPORTANT
If anoutdoorantennais connectedto thereceiver,besuretheantennasystemis groundedto provideprotection
againstvoltagesurgesorbuild-upof static charges.Article 810of theUSNationalElectricCode(ANSI/NFPA70)
providesinformationaboutthepropergroundingof thelead-inwireto anantenna-dischargeunit, sizeof ground-
ingconductors,locationof antenna-dischargeunit, connectionto groundingelectrodes,andrequirementsfor
groundingelectrodes.Theantennamustbedesignedfor the 88-108MHzband.
THEREARENOUSERSERVICEABLEPARTSINSIDE ANYKRELLPRODUCT.
PleasecontactyourauthorizedKrell dealer,distributor,or Krell if youhaveanyquestionsnotaddressedin
this referencemanual.
Thisproductis manufacturedin theUnitedStatesof AmedcaKrell® is aregisteredtrademarkof Krell Industries.Inc.. andis restrictedfor usebyKrell
Industries,INC.,its subsidiaries,andauthorizedagents.TheaterThroughput
TM
is a trademarkof Krell Industries.nc.All othertrademarksandtradenames
areregisteredto their respectivecompanies.
@2000byKrell Industries, Inc. All rights reserved P/N 303989

Contents
INTRODUCTION
DEFINITION OF TERMS
UNPACKING
PLACEMENT
ACPowerGuidelines
FRONTPANEL DESCRIPTION
BACKPANEL DESCRIPTION
REMOTECONTROLDESCRIPTION
Battery Installation andRemoval
CONNECTINGTHE KAV-300r TO YOURSYSTEM
Howto Install Antennae
RECEIVER OPERATION
Power On
TunerFunctions
TAPE INPUT AND OUTPUT
OPTIONAL CONFIGURATIONS
Configuring the KAV-300rfor TheaterThroughput
Preamplifier Output
Adjusting Contrast andBrightnessof the TunerDisplay
HOWTO TROUBLESHOOTSYSTEM NOISE
QUESTIONS AND ANSWERS
WARRANTY
RETURN AUTHORIZATION PROCEDURE
SPECIFICATIONS
Page
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3
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11
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16
16
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17
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18
18
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21
Back Cover
Krell KAV-300r iii

Illustrations FIGURE1 The KAV-300rFront Panel
FIGURE2 The KAV-300r Back Panel
FIGURE3 The KAV-300r RemoteControl
FIGURE4 Installing the FMAntenna
Page
4
7
10
14
iv Krell KAV-300r

Introduction Definition of Terms
Thank you for your purchase of the Krell
KAV-300r Stereo Receiver with Theater
Throughput. The KAV-300r gives the audio-
phile an exceptional-sounding, two-channel
musicsystemin a convenientpackagethat can
standaloneor easily beintegratedinto a multi-
componentsystem. Thetuner combinesstrong
reception and quality soundwith transparent
functioning and can be operated through the
front panel or the remote. Six programmable
tuner presets allow instant selection of your
favorite AMor FMstations. TheFMmuteand
high frequencyblendfeatures also let youcon-
trol background and between-station noise
whenselecting FMstations with weakerbroad-
castsignals.
TheTheaterThroughputfeature simplifies the
integration of an audio/video surround sound
processor into your system. Theremotepro-
vides convenient operation of-the KAV-300r
and other Krell KAVcomponents.
This owner’s reference manualcontains impor-
tant informationonplacement,installation, and
operation of the KAV-300r. Please read this
information carefully. A thoroughunderstanding
of thesedetails will help ensuresatisfactory
operation andlong life for your KAV-300rand
related systemcomponents.
Followingare the definitions of keytermsused
in your owner’sreference manual.
CONFIGURATIONS
Theater Throughput
TheaterThroughputis a Krell configurationoption
that allowsthe signalfroma surroundpreamp/pro-
cessorto passthroughaKrell preamplifieror inte-
gratedamplifier with nogain, for integratedvol-
umeand balance managementof Krell home
theater systems.
INPUT AND OUTPUTCONNECTIONS
Balanced
A symmetricalinput or output circuit that has
equal impedancefromboth input terminals to a
commonground reference point. Theindustry
standardfor professional andsoundrecording
installations, balancedconnectionshave6 dB
moregain than single-ended connections and
allow the use of long interconnect cables.
Balancedco0nections are completely immuneto
inducednoise from the systemor the environ-
ment.
Single-ended
A two-wireinput or outputcircuit. Usecarewhen
using single-ended connectionsas the ground
connectionis madelast andbrokenfirst. Turnthe
systemoff prior to makingor breaking single-
endedconnections. Single-ended connections
are not recommendedfor connectionsrequiring
longcableruns.
Krell KAV-300r 1

Definition of Terms,continued Unpacking
OPERATION
Off
Whenthe powerbutton on the front panel
or the powerkey on the remotecontrol is
pressedandthe blue powerLEDturns off,
the componentis off.
OperationalMode
Whenthe powerbutton on the front panel
or the powerkey on the remotecontrol is
pressed and the blue powerLEDillumi-
nates, the componentis in the operational
modeandready to play music.
Stand-by Mode
A low powerconsumptionstatus that keeps
the audioandregulatorcircuits at idle. Krell
recommendsleaving the componentin the
stand-bymodewhenit is not playing music.
1. Openthe boxandremovethe top layer of
foam.Youseetheseitems:
1 KAV-300rStereo Receiver
1 KAV-300rremotecontrol
1 ACpowercord
1 12 VDC(12 V trigger) cable
1 AMloop antennaandbase
(basenot attached)
1 FMindoordipole antenna
1 matchingtransformer
for the FMantenna
2 AAA-size1.5 Vbatteries
1 trimmeradjustmenttool
1 owner’sreferencemanualand
warrantyregistrationcard
2. Carefully removethe unit andaccessories
from the box. .
3. Removethe foamendcapsandprotective
plasticwrapfromtheunit.
Notes
If anyof theitemslisted abovearenotincluded,
pleasecontact your authorizedKrell dealer,
distributor,or Krell immedi-atelyfor assistance.
Saveall packingmaterials.If youneedto ship
yourKAV-3OOrin thefuture, repacktheunit in
its original packagingto preventtransit dam-
age.
2 Krell KAV-300r’

Placement
Before you integrate the KAV-300rinto your
system,review the following to properly place
your component.This will facilitate a clean,
trouble-freeinstallation.
Forinstallations inside cabinetry,extra ventila-
tion maybe necessary. TheKAV-300rrequires
at least twoinches(5 cm)of clearanceoneach
side andat least twoinches(5 cm)of clearance
above to provide adequateventilation. The
KAV-300rdoesnot require a special rack or
cabinet for installation. For the dimensionsof
the KAV-300r,see Specifications, on the back
cover.
TheKAV-300ris not particularly hum-sensitive.
Other componentsmaybe placed on or around
the KAV-300r,as long as the ventilation grids
remainunobstructed.
Note
Sometelevisions andfluorescer~tlights generate
highlevels of AMradiation, whichcaninterfere
with AMreception. Electro-magnetic radiation
from someradio receiving and transmitting
equipment(suchas televisions, videorecorders,
digital equipment, and computers) can also
causenoiseandinterference.
Place the KAV-300ras close to the speakersas
possible. Runlong balancedinterconnect cables
to the receiverandkeepspeakercablelengthsto
a minimum.Speakercable adds impedanceto
the loadtheamplifiermustdrive, regardlessof the
cable gauge.
AC POWERGUIDELINES
TheKAV-300rhas superb regulation and does
not require a dedicatedACcircuit. Avoidcon-
nectionsthroughextensioncordsor multiple AC
adapters. High quality 15 ampgrounded AC
strips areacceptable.Highquality ACline con-
ditioners or filters maybe usedif they are
groundedand meetor exceedthe component’s
powersupplyrating of 400VA.
Power Cord
TheKAV-300rshould be operatedonly with the
power cord supplied. Please contact your
authorized Krell dealer, distributor, or Krell
before using anydevices designedto alter or
stabilize the ACpowerfor the KAV-300r.
Krell KAV-300r 3

FIGURE 1 THE KAV-300r FRONT PANEL
1 2 4 6 7 8 9 12 13 14 15 16 17
311) 11 18
PowerFunctions
1 Stand-byLED
2 PowerLED
3 PowerButton
TunerFunctions
4 PresetButtons
5 TunerDisplay
6 InfraredSensor
7 Mono/StButton
8 AM/FMButton
9 TunerButtonandLED
10TuneButtons
11SeekButtons
TapeInput and
OutputFunctions
12TapeButton andLED
AnalogInputs
13 B-l, S-1,S-2,and
S-3 ButtonsandLEDs
ProcessingIndicators
14TheaterLED
15 BalanceLED
16 MuteLED
17Level LEDs
LevelAdjustments
18Down/UpButtons

FrontPanelDescription
SeeFigure1 onpage4
TheKAV-300rfront panelprovideson/off, tuner
selection, input selection, andvolumecontrol.
Additional functions are accessedusing the
remote control. SeeRemoteControl Descrip-
tion, on page11.
A description of front panel buttons andtheir
functionsfollows.
PowerFunctions
1 Stand-by LED
The red stand-by LEDilluminates whenthe
KAV-300ris pluggedinto a standard ACwall
receptacle,indicating that the receiveris ready
to beswitchedon.
2 Power LED
The blue power LEE) illuminates whenthe
KAV-300ris on.
3 PowerButton
Usethis button to turn the KAV-300ron andoff
and also to switch the 12 VDC-(12V trigger)
outputonandoff.
Tuner Functions
4 Preset Buttons
TheKAV-300rhassix presets that canbe used
to savesix AMandsix FMstation settings and
recall programmedsettings. Thestation fre-
quencyand assigned preset numberappearin
the tuner display. Presets are programmed
through the front panel or remotecontrol. See
ProgrammingPresets, on page 17.
5 TunerDisplay
Thetuner display showsthe current station
position as well as the status of other tuner
functions.
6 Infrared Sensor
Theinfrared sensor receives commandsfrom
the KAV-300rremotecontrol. For properremote
control operation,makesure the infrared sensor
is clear of anyobstructions.
7 Mono/StButton
Usethis button to select monomode(if, for
example,the broadcastsignal is weakor noisy).
Thetuner display windowindicates MONO.A
stereo broadcast automatically decodes in
stereo as long as the signal is abovethe stereo
switching threshold. Mono/Stereoswitching in
FMis automaticunlessmonois selected.
8 AM/FMButton
Usethis button to chooseeither AMor FMsta-
tion frequency.
9 Tuner Button and LED
Usethis button to activate the tuner. Thered
tuner LEDabovethe button illuminates when
the tuner is activated. Thetuner buttonis also
used to program presets. See Programming
Presets, on’page17.
10 TuneButtons
Usethese buttons to movethe tuner selection
up or downin one-stepincrements.
11 SeekButtons
Usethesebuttonsto find the next available AM
or FMstation frequency.
Tape Input and Output Functions
12 Tape Button and LED
Usethis buttonto select the tapeinput andout-
put feature. For moreinformation, see Tape
Input and Output, on page17. Thered tape
LED..located abovethe tapebutton, illuminates
whenthe tape feature ~s activated.
Krell KAV-300r 5

FrontPanel,continued
SeeFigure1 onpage4
AnalogInputs
13 B-l, S-1, S-2, andS-3
Buttons and LEDs
Usethese buttons to choosefrom onebalanced
XLRsource (B-l), andthree single-ended RCA
sources(S-1, S-2, andS-3).Thered LEDabove
the selectedinput illuminates.
ProcessingIndicators
14 Theater LED
Thered Theater Throughput LEDilluminates
whenyouselect anyof the inputs (S-1, So2,S-3,
or B-l) as a Theater Throughputsource. See
OptionalConfigurations,on page18.
15 Balance LED
The red balance LEDsilluminate whenyou
adjust the balanceto the left or right channel.
Balanceadjustmentis activated only through
the remotecontrol. SeeBalanceKeys(47), on
page12.
16 Mute LED
Thered muteLEDilluminates whenyou press
the mutekey onthe remotecontrol. Muteinter-
rupts the signal of the input youhaveselected.
To unmute,press muteagain.
17 Level LEDs
Thered volumelevel LEDsilluminate to show
the systemoutput level.
Level Adjustments
18 Down/UpButtons
Usethese buttons to adjust the systemoutput
level (left buttondecreasesvolume;right button
increases volume)andsystembalancelevels.
Krell KAV-300r