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
1
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2
3
3
5
8
11
11
13
13
16
16
16
17
18
18
18
18
19
19
20
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

FIGURE 2 THE KAV- 300r BACKPANEL
19 2¸0 21 23 24 25 26 27 22
28 28 29 30
Antenna
Connections
19 AMAnt
20 FMAnt
Amplifier Channels
21Right Outp.ut
22 Left Output
, RemoteControls
23 12 VDCOut
24 RC-5
AnalogInputs
and Outputs
25 PreampOut
26 TapeOut/In
27 S-3, S-2, S-1, B-1 Inputs
Fuses
28 Fuse AGC12
29 Line Fuse
Power
30 IEC PowerReceptacle

BackPanelDescription
SeeFigure2 onpage7
Theback panel provides connections for AM
and FMantennae, inputs and outputs, and
power.A description of backpanel components
andtheir functionsfollows.
Antenna Connections
19 AMAnt
The KAV-300ris equipped with one AMloop
antenna, which must be attached to the AM
antennascrew terminal. SeeHowto Install
Antennae,on page 13.
20 FMAnt
TheKAV-300ris equippedwith oneFMdipole
antenna, which must be plugged in to the
FMantennacoaxial connector. SeeFigure 4,
Installing the FMAntenna,on page 14, and
Howto Install Antennae,on page13.
Amplifier Channels
21 Right Output
22 Left Output
TheKAv-300ris equippedwith standardbinding
posts for eachamplifier channel.Theseconnec-
tors accept bare wire, bananaplugs, pins, or
spadelugs. Usethe redterminalfor the positive
connectionandthe blackterminalfor the negative
connection.
RemoteControls
23 12 VDCOut
The12 VDC(.12 V trigger) output allows the
KAV-300rto activate other Krell components
andother devices that havea 12 Volt trigger
input.
Notes
The12 VDCoutput poweris limited to 30 ma.
Refer to the owner’s manual of every com-
ponentusedh~a custominstallation to takefull
advantageof the KAV-3OOrremotecapability.
24 RC-5
TheRC-5input accepts basebandRC-5input
commandsfrom hardwired remotecontrollers.
AnalogInputs and Outputs
25 PreampOut
TheKAV-300ris equippedwith a pair of single-
endedpreamplifier outputs.
Note
The amplifier channel outputs are always
active, evenwhenthe KAV-3OOris only being
usedas a preamplifier.
26 TapeOut/In
TheKAV-300ris equippedwith oneset of sin-
gle-endedtape inputs andoutputs via RCAcon-
nectors.
27 S-3, S-2, S-1, B-1 Inputs
TheKAV-300ris equippedwith three sets (left
andright) of single-endedinputs via RCAcon-
nectors. The’KAV-300ris also equippedwith
oneset (left andright) of balancedinputs via
XLRconnectors.
Fuses
28 Fuse AGC12
The AGC12 fuses protect the KAV-300r
againstshort circuits in speakeroutput.
29 Line Fuse
The50/60 Hzline fuse protects the KAV-300r
againstshort circuits fromthe ACpowerlines.
Krell KAV-300r"

BackPanelDescription,
SeeFigure2 onpage7 con~nued
Note
Fusesmustbe replacedwith the fuse value
specified onthe KAV-3OOrbackpane/.
Power
30 IEC PowerReceptacle
TheKAV-300ris equippedwith an IECpower
receptaclefor usewith the ACpowercord.
KrellKAV-3OOr

FIGURE 3 THE KAV-300r REM()TE CONTROL
31
34
35
36
37
38
41
42
32
33
39
40
44
43
45
46
PowerFunctions
3t Pwr Key
32 Amp/PreKey
TapeInput andOutput
33 TapeKey
TunerFunctions
34 FMMuteKey
35Mon/StKey
36AnalogInput Keys
37TunerKey
38 AM/FMKey
39 TuneKeys
40 SeekKeys
41Prog/ScanKey
AdvancedFunctions
42 A/B/MemKey
43Rep/StoreKey
44 Rnd/HFBKey
45 MuteKey
46 VolumeKeys
47BalanceKeys
Note:Somekeyson the remotecontrol" do not function with the KAV-3OOr,
10 Krell KAV-300r

RemoteControl Description
SeeFigure3 onpage10
TheKAV-300rremote control provides power
on/off, andbasic andadvancedtuner functions.
BATTERYINSTALLATION
AND REMOVAL
The KAV-300rhandheld remote control uses
two AAA-size1.5 Volt batteries. Batteries are
includedwith the shipment.
Toinstall the batteries in the handheldremote
control:
1. Removethe backplate by sliding the cover
down.
2. Install thebatteries,followingthebatteryposi-
tion diagramontheplastic batteryreceptacle.
3. Replacethe backplate.
Theremotecontrol is readyfor operation.
Replacebatteries whenremote-controlfunction
becomesintermittent. Removebatteries if the
remotecontrol is not to beusedfor a longperiod
of time. Battery leakagecan damagethe remote
control.
A description of the remotecontrol keys and
their functionsfollows.
Notes
Whena remotecontrol function keyis pressed,
the KAV-3OOrblue power LEDflashes. When
the keyis released,the flashing stops.
TheCDfunction keys(CD, track, pause,play,
open,stop), andD/A, Dig In, Gain, Phase,and
Intro keysare not functional for the KAV-3OOr.
PowerFunctions
31 Pwr Key
Usethis keyto turn the KAV-300ronandoff.
32 Amp/PreKey
Usethis key to activate the KAV-300rremote
control andaccessreceiver commands.
TapeInput and Output
33 Tape Key
Usethis key to comparethe output signal of a
three-headanalogtape recorder to the output
signal of an audio source, whenmaking a
recording. Thered tape LEDilluminates when
the tape recorder is activated. Thered tape
LEDdoes not illuminate whenthe audio source
is activated. SeeTapeInput andOutput, on
page17.
Tuner Functions
The keypad keys access FM mute and
mono/stereofunctions, analoginput sources,and
tuner functions. A description of thesekeysand
their functionsfollows.
Note
Keypadnumbers1-6 are active only for pro-
grammingand accessing tuner presets. See
Programming Presets, on page 17. Keypad
numbers7-9, O, and+10are not functional on
the KAV-’3OOr.
34 FMMute Key
Usethis key to turn FMmuteon and off. FM
muteoff allows you to hear FMstations with
broadcastsignals not strong enoughfor clear
reception. Toturn muteon, press the FMmute
key. Muteonreducesthe noise betweenstation
positions, for better monitoringof audiooutput
as youtune.
Note
Thetuner display indicates muteon; it doesnot
indicate muteoff.
Krell KAV-300r 11

RemoteControlDescription,continued
SeeFigure3 onpage10
35 MoniSt Key
Usethis keyto select monomode(if, for exam-
ple, the signal is weakandnoisy). Thetuner
display indicates MONO.A stereo broadcastis
automatically decodedin stereo as long as the
signal is abovethe stereo switching threshold.
Mono/stereo switching in FMis automatic
unlessmonois selected.
36 AnalogInput Keys
Use these keys to choosefrom one balanced
XLRsource (B-l) andthree single-ended RCA
sources(S-1, S-2, andS-3).
Note
B-2 and S-4 analog inputs are not func-
tional onthe KAV-3OOr.
37 Tuner Key
Usethis keyto select the tuner,
38 AM/FMKey
Usethis key to select either AMor FMstation
frequency.
39 Tune Keys
Use these keys to movethe tuner selec-
tion up or downin one-stepincrements,
40 Seek Keys
Usethesekeysto find the next available AMor
FMstation frequency.
41 Prog/Scan Key
Usethis keyto movethe tuner selection to the
next available AMor FMstation frequency.The
tuner pausesfor five seconds,then movesto the
nextavailablestation .’To stopthetunerfrommov-
ing to the nextstation, pressthe scankeyagain.
AdvancedFunctions
43 Rep/Store Key
Usethis key to store a preset selection. See
ProgrammingPresets, on page 17.
44 Rnd/HFBKey
Usethis keyto reducenoise whenan FMstation
with weakbroadcastsignal andhigh background
noiseis selected. Notethat somehigh frequency
stereo separationis reducedalongwith the back-
groundnoise.
45 Mute Key
Usethis keyto interrupt thesignal of theselect-
ed input. Thered muteLED(16) on the front
panelilluminates whenyou pressthe mutekey.
46 Volume Keys
Use these keys to adjust the volumeof the
KAV-300routput (left key decreasesvolume;
right keyincreasesvolume).Thelevel LEDson
the front panelindicate the volumelevel.
47 Balance Keys
Usethesekeys to shift balanceto the left or
right in 1 dBincrements.The"L" position mutes
the right channel.The"R"positionmutesthe left
channel.
Wheneither balance key is pressed, the bal-
anceLED(1.5) illuminates andthe volumelevel
LEDs(17) convert to balance indicators. The
center LEDremainsilluminated, indicating the
center balanceposition. Asbalanceis adjusted
left or right, a secondLEDilluminates, indicat-
ing. the modifiedbalancesetting.
If the balancehasbeenset off-center, the balance
LEDremainsilluminated after the adjustment.
After five secondsof inactivity or a volumeadjust-
ment,the level LEDsrevert to volumeindicators.
42 NB/MemKey
Usethis keyto accessprogrammedpresets. See
ProgrammingPresets, on page17.
12 Krell KAV-300r

Connecting the KAV-300r
to Your System
To prevent the introduction of humor other
noiseinto the system,organizeall wiring neatly
betweenthe KAV-300rand other systemcom-
ponents and separate ACwires from audio
cables.
TheKAV-300ruses standard binding posts for
each amplifier, channel. These connectors
acceptbare wire, bananaplugs, pins, or spade
lugs. Usethe red terminal for the positive con-
nection andthe black terminal for the negative
connection.
Connectthe speakercables to the left (22)
andright (21) amplifier channeloutput ter-
minalslocated on the backpanel.
Connectthe left andright outputs of your
source componentsto the analog inputs
(27) on the KAV-300r.
Plug the ACpowercord into the IECpower
receptacle(30) on the KAV-300rbackpanel.
Plug the remaining end into the ACwall
receptacle. Thered stand-byLED(1) onthe
front panelilluminates.
TheKAV-300ris equippedwith oneset of bal-
ancedinputs (B-l) via XLRconnectors,threesets
of single-endedinputs (S-1, S-2, andS-3) via
RCAconnectors, andonetape input andoutput
loop via RCAconnectors.Anybalancedor single-
ended input maybe configured for Theater
Throughput. SeeOptional Configurations,on
page18.
Krell recommendsusing balancedinterconnect
cables. Balancedinterconnect cables can mini-
mize sonic loss and are immuneto induced
noise, especially for installations using long
cables. Thebalancedconnectionhas6 dBmore
gain than single-endedconnections.Whenlevel
matchingis critical, pleasekeepthis specification
in mind.
Notes
All inputs andoutputs are labeled onthe back
panelMaintainthe correct left~right orientation.
Single-endedpreamplifier outputs canbe used
to simultaneouslyfeeddifferent systems.
HOWTO INSTALL ANTENNAE
FM Indoor Dipole Antenna
SeeFigure4 onpage14
An FMindoor dipole antenna and matching
transformerare included with the KAV-300r.
Toconnectthe FMindoor dipole antenna:
1. Loosenthe twoscrewsonthe matchingtrans-
former(c).
2. Insert the antennaspadelugs (b) betweenthe
screwheadsandthe screw.bases(c).
3. Tighten screwsto securethe spadelugs.
4. Plugthe transformer’scoaxial connector(d)
into the F.MAntcoaxial connector(f) onthe
backpanel.
5. Stretch out the antennawires andmovethe
antenna around to find the best signal
strengthand.clarity.
6. Attachthe antennato the wall or other pre-
ferred location, suchas inside cabinetry.
Smallnails canbedriven throughthe holes
in the plastic caps,locatedat the endof the
antennawires, to securethe antenna.
Krell KAV-300r 13

FIGURE 4 INSTALLING THE FM ANTENNA
d
ANT
AMANT
KRELLINDUSTRIES,INC.
45 CONNAIRRD.
ORANGE,CT 06477-3650
USA
1 FMIndoor DipoleAntenna
2 MatchingTransformer
3 BackPanel, KAV-300r
a End Cap
b SpadeLugs
c Screws
d TransformerCoaxialConnector
e AMAntennaScrewTerminal
f FMAntennaCoaxial Connector
14 Krell KAV-300r

Connecting the KAV-300r
to yourSystem,continued
HOWTO INSTALL ANTENNAE,
continued
Notes
For optimumtuner reception andperformance,
use an outdoor FMantenna. The antenna
needsto havegoodgain anddirectional char-
acteristics, be mountedas high as possible
awayfrom anylarge metal objects, andpoint
towardthe transmitter.
Whenthe outdoorantennais installed, discon-
nect the FMindoor antenna.
AM Loop Antenna
An AMloop antenna is included with the
KAV-300r.
Note
The AMloop antenna must be connectedeven
whenan outdoor antennais installed because
the AMloop antennaforms part of the AMtun-
ingcircuit.
Toconnect the AMloop antenna:
1. Loosen screws on the AMAntenna screw
terminal (19) on the backpanel.
2. Insert spadelugs betweenscrewheadsand
screwbases.
3. Tighten screwsto securespadelugs.
4. Movethe AMloop antenna around to find
the bestsignal strengthandclarity.
5. Usethe antennabaseprovidedto attach the
AMloopantennato a wall or otherlocation, if
desired.T, hebasecanbetapedto asurfaceor
screwedin (screwnot provided).
For enhancedAMreception, youcan connect a
single connectorwire (approximately20f~eet)
the pole markedAMANT(19)on the backpanel
of the KAV-300r.Extendthe wire to find the
bestsignalstrengthandclarity.
KretlKAV-300r 15

Receiver Operation
TheKAV-300rprovides input andpreset selec-
tion andvolumecontrol from the front panel.
Theremotecontrol provides additional func-
tions. Instructionsfor receiveroperationfollow.
POWER ON
1. Turn the receiver on by pressing the power
button(3) onthe front panelor pressingthe
pwrkey (31) onthe remotecontrol.
TheKAV-300rpowersupply incorporates a
slowstart protection circuit that prevents
excessive current from reaching the audio
circuitry uponinitial poweron.After pressing
the powerbutton(3) or pwrkey(31), the
stand-by LED(1) on the front panel extin-
guishes, and the blue powerLED(2) and
the tuner display (5) illuminate. Thereis
short delay, followed by an audible click.
Thisclick is the protection oircuitry disen-
gaging. The KAV-300r is nowready for
operation.
2. Select a sourcedeviceeither from the front
panel(13) or usingthe remotecontrol (36).
Thesourcebeginsto play.
3. Set the volumeto a comfortable listening
level.
4. Whenchangingsources, lower the volumeto
off (18), or mutethe output(45). Mute
Key,on page12. This ensuresthat the next
sourceplayed doesnot damageyour system
with a highoutputtransient.
TUNER FUNCTIONS
Selectinga Station
1. Press the AM/FMbutton (8) on the front
panel or the AM/FMkey (38) on the remote
control to select the desiredmode.
2. Select the desiredstation frequency.There
are threewaysto select a station:
TunemUsethese buttons (10) or keys (39)
to movethe tuner selection up or downin
one-stepincrements.
Seek--Usethesebuttons(11) or keys(40)
find the next available AMor FMstation
frequency.
Prog/ScanmUsethis key (41) to movethe
tuner selection to the next available AMor
FMfrequency. Thetuner pausesfor five
seconds,then movesto the next available
station. Tostop the tuner frommovingto the
next station, pressthe scankeyagain.
Theselected station frequencyappearsin the
tunerdisplay(5) onthe front panel.
16 Krell KAV-300r