Krell Industries Krell KPS 28c User manual

"rile I.-EAriER IN AUDIO ENGINEERING
KPS28c
Krell Playback System
with Krell CASTTechnology
Instructions for Use
Owner’s Reference

KPS28c
Krell Playback System
with Krell CAST
Technology
v 00.0
Krell Industries,Inc.
45 Connair Road
Orange, CT 06477-3650 USA
TEL [phone]
FAX[phone]
E-MAILkrell @krellonline.com
WEBSITEhttp:l/www.krellonline.com
This productcomplieswith the EMCdirective (89/336/EEC)andthe low-voltage directive (73/23/EEC).
WARNINGS
TheKPS28cmustbe placedona firm, level surface whereit is not exposedto dripping or splashing.
Theventilation grids onthe top of the KPS28cmustbeunobstructedat all times during operation. Donot
place flammablematerial aboveor beneaththe component.
Donot removeor bypassthe groundpin onthe endof the ACcord. This could causeradio frequencyinter-
ference (RFI) to beintroduced into your playbacksystem.Operatethe KPS28conly with the powercord
supplied.
Tumoff aft systems’powerbefore connectingthe KPS28cto anycomponent.Makesure aft cable termina-
tions areof the highestquali~free fromfrayedends,shortcircuits, or cold solderjoints.
THEREARE NO USERSERVICEABLEPARTSINSIDE ANY KRELL PRODUCT.
PleasecontactyourauthorizedKrell dealer, distributor, or Krell if youhaveanyquestionsnot addressedin
this referencemanual.
F~---~®equipped
Thisproductis manufacturedin theUnitedStatesof Amedca.Krell® is aregisteredtrademarkof Krell Industries,Inc., andis restrictedfor usebyKrell
Industries,Inc., its subsidiaries,andauthorizedagents.Krall PlaybackSystem
TM
is atrademarkof Krell Industries,Inc. Krell CASTis apatentpendingof
Krell Industries,Inc. Krell Link
TM is atrademarkof Krell Industries,Inc. [~, HDCD ®,HighDefinitionCompatibleDigital®
andPacificMicrosonics
TM
areeither registeredtrademarksor trademarksof Pacific Microsonics,Inc. in the UnitedStatesand/orothercountries.HDCDsystemmanufactured
underlicensefromPacificMicrosonics,Inc. Thisproductis coveredbyoneor moreof the following:In theUSA:5,479,168,5,638,074,5,640,161,
5,808,574,5,838,274,5,854,600,5,864,311,5,872,531,andin Australia: 669114.Otherpatentspending.TosLink
TM is a trademarkof Toshiba
Corporation.All othertrademarksandtradenamesareregisteredto their respectivecompanies.
©2000byKrellIndustries,Inc.All rightsreserved P/N304374

Contents
INTRODUCTION
DEFINITION OF TERMS
REVOLUTIONARYKRELL CAST
TECHNOLOGY
UNPACKING
PLACEMENT
ACPowerGuidelines
QUICK START
Input andOutput Connections
Power On
To Play a CompactDisc
FRONTPANEL DESCRIPTION
BACKPANEL DESCRIPTION
REMOTECONTROLDESCRIPTION
Battery Installation andRemoval
CONNECTINGTHE KPS 28c
TO YOUR SYSTEM
Analog Output Connections
Digital OutputConnections
Connecting the KPS28c
Power On
OPERATINGYOURKPS 28c
To Play a CompactDisc
Howto Write a Program
Howto Create an A/B Loop
WARRANTY
RETURNAUTHORIZATION
PROCEDURE
SPECIFICATIONS
Page
1
1
2
3
3
3
4
4
4
4
6
8
10
10
12
12
12
12
13
13
13
13
14
15
16
Back Cover
Krell PlaybackSystem28c iii

Illustrations
FIGURE1 The KPS28c Front Panel
FIGURE2 The KPS,28c Back Panel
FIGURE3 The KPS28c RemoteControl
Page
5
7
9
iv Krell PlaybackSystem28c

Introduction Definition of Terms
Thankyoufor yourpurchaseof the Krell Playback
System28c. The KPS28c’s transport design
eliminates error-producing wobbleanddelivers
exceptionaltracking andfocusaccuracy,regard-
less of environmentor disccharacteristics.Digital
circuitry providesultra-highsignal resolutionand
direct coupledanalogcircuitry assuressuperior
low-frequencyperformance,with low distortion,
wide bandwidth, and minimal negative feed-
backs.TheKPS28ccan beseamlesslyintegrat-
edinto a hometheater or whole-houseaudio sys-
tem,andthe remotecontrol providesfor the con-
venientoperationof the KPS28cas well as other
Krell components.
This owner’sreference manualcontains impor-
tant information onplacement,installation, and
operation of your KPS28c. Please read this
information carefully. Athoroughunderstanding
of these details will help ensuresatisfactory
operation and long life for your KPS28cand
related systemcomponents.
Followingare the definitions of keytermsused
in your owner’sreference manual.
CONNECTIONS
Bridging. Aninternal connection option that
links twoamplifier channelsto operateas one
combinedamplifier channel, greatly increasing
the channel’s poweroutput.
Krell Multi AmpThroughput(MAT). A propri-
etary internal connectionoption that sendsthe
samemusic signal to all amplifier channels
using one balanced or single-ended connec-
tion. MATreducesinstallation complexity and
cabling requirements in systemscontaining
multipleamplifiers.
INPUTS ANDOUTPUTS
Balanced.Asymmetricalinput circuit that has
equalimpedancefromboth input terminals with
respect to a commonreference point. Balanced
connections have6 dB moregain than single-
endedconnections.
Single-ended. Aninput circuit in which one
sideof a transmissionline circuit is ungrounded.
Single-endedconnections have6 dBless gain
than balancedconnections.
OPERATION
Off. Whenthe powerbutton onthe front panel
is pressedand the blue powerLEDturns off,
the componentis off.
Operational Mode.Whenthe powerbutton on
the front panel is pressedandthe blue power
LEDilluminates, the componentis in opera-
tional modeandreadyto play music.
Krell PlaybackSystem28c

Revolutionary Krell CAST
Technology
Current Audio Signal Transmission, .termed
CAST,is a revolutionary methodof connecting
analog audio componentsfor unparalleled
sonic performance. Innovative engineering
combinesthe newKrell CASTcircuitry with
existing Krell CurrentModetechnologyto cre-
ate entire CASTsystemsthat reproduce music
with incredible range,tonality, andprecision.
Voltage Signal Transmissionandthe
Traditional AudioSystem
Traditionally, signal is transmittedin the voltage
domainbetweentwo components.In an audio
system,eachcomponentis a discrete entity with
uniquecharacteristics that act uponthe musical
signal independently. Each component is
unawareof the other componentsin the system.
Thecables that connect the componentseach
havetheir ownelectrical characteristics, which
affect the sonicpresentationof the entire system.
CAST: A NewApproach
CASTcircuitry recognizessignal transmitted in
the current domain instead of the voltage
domainbetweeneach component.CASTtrans-
mission unifies the individual componentsand
their interconnectsinto an electrically linked
whole.Thesonic presentationof the entire sys-
temremainsintact.
CASTBasics
Here’s how a CASTaudio system works.
Internally, each CASTsource transfers, or
amplifies, current usingKrell CurrentModecir-
cuitry. This current signal is then output using
CASTcircuitry. Whenthe signal is received by
a CASTinput, Krell Current Modecircuitry
again takes over until the signal reachesthe
loudspeaker.Bymaintainingthe musicalsignal
in the current domainfrombeginningto end, an
entire CASTsystembehavesas if it is onecom-
ponent.WithCAST,anomaliesof signal transmis-
sion betweencomponentsare eliminated. Cable
impedancesandtheir effects onthe transmitted
signal arenon-existent.
HowCASTand Krell Current ModeInteract
While CASTis a newmethodof transferring the
musical signal betweencomponents,its origin
stemsfrom Krell Current Mode,the technology
developedto transfer the musicalsignal within
a component. CASTcombined with Krell
Current Modetakes circuitry signal transmis-
sion to the nextevolutionarylevel. In essence,
Krell CurrentModemaintainsthe integrity of the
signal within the componentand CASTpre-
serves the transmitted signal betweencompo-
nents. Together, CASTandKrell Current Mode
technologies unify separate Krell components
into asingleglobalcircuit.
CASTCable Construction
A CASTsystem uses cables manufactured by
Krell and other manufacturers specially
licensedby Krell. Thinandflexible CASTcables
are constructedwith the samebuild quality as
other Krell products and are aesthetically
matchedto the componentsthat Kreil manufac-
tures. Anall-metal bodyandlocking connectors
with gold contactsare part of the standardno-
compromisespecification developedfor every
CASTcable made.
The Best Musical Performance
Whenyou operate a CASTsystem, you will
hear significant improvementsin every perfor-
mancearea: speed, precision, dynamicrange,
depth andwidth of the soundstage, transient
impact, tonal balance,harmonicdistortion, and
more. Thegoal for CASTis the samecompany
goalusedfor all Krell products.Krell strives for
the delivery of the best performanceof a musi-
cal eventfor you, using the full expressionof
technologyto date.
2 Krell PlaybackSystem28c

Unpacking Placement
1. Openthe shipping box andremovethe top
layer of foam.Yousee theseitems:
1 KPS 28c
1 ACpower cord
1 12VDC(12 Volt trigger)
remotecable link
1 1.25 ampslowblow fuse
1 T-10 Torx wrench
1 KPS28c remotecontrol
2AAAsize 1.5 Volt batteries
1 packet containing the Owner’s
Referenceand the Warranty
Registration Card
2. Carefully removethe unit andaccessories
from the shipping box. Removethe foam
endcapsandprotective plastic wrapfrom
the KPS28c.
Notes
ff anyof these items are not included in the
shipping box, please contact your authorized
Krell dealer,distributor, or Krell for assistance.
Saveall packingmaterials, ff youship yourKPS
28cin the future, repackthe un#in its original
packaging to prevent trans# damage. See
ReturnAuthorizationProcedure,on page16,
for moreinformation.
Before youinstall the KPS28c into your sys-
tem, reviewthe following guidelines to choose
the location for yourcomponent.This will facili-
tate a clean, trouble-free installation. TheKPS
28cdoesnot require a special rack or cabinet
for installation. For the dimensionsof the KPS
28c, seeSpecifications, onthe backcover.
TheKPS28crequires at least twoinches (5 cm)
of clearanceoneachside andat least twoinch-
es (5 cm)of clearanceabovethe component
provideadequateventilation. Installations inside
cabinetrymayneedextra ventilation.
Note
The KPS28c incorporates an advanced sus-
pension systemanddoesnot require addition-
al masscoupling or isolation. Youmayexperi-
mentwith feet or conesas long as they are not
permanentlyaffixed to the chassis, Anyunau-
thorized modifications to the electronics or
chassiswill void the warranty.
IMPORTANT
Donot attach enhancementaccessories such
as rings, mats, or dampersto individual com-
pact discs. Theseaccessories mayinterfere
with the compactdisc transport, resulting in
erratic playbackand/orpoor sound.
AC POWERGUIDELINES
TheKPS28c has superb regulation and does
not require a dedicatedACcircuit. Avoidconnec-
tions through extension cords or multiple AC
adapters. High quality 15 ampgrounded AC
strips areacceptable.Highquality ACline condi-
tioners or filters canbeusedif theyareground-
edand
I meetor exceedthe unit’s powersupply
rating of 100VA.
Krell PlaybackSystem28c 3

QuickStart
Theabbreviatedproceduresin this QuickStart
section enableyouto connectandoperate your
KPS28csystemquickly to enjoy its basic fea-
tures. Toaccessthe full array of available fea-
tures for the KPS28c, please read the entire
owner’s reference manual. Numbersin paren-
thesesrefer to Figure 1 on page5, Figure 2 on
page7, andFigure 3 onpage9.
INPUT ANDOUTPUTCONNEC-
TIONS
IMPORTANT
Makesure all componentsand powersources
are off before connectinginputs andoutputs.
Whenswitching between active sources,
alwayslower the volumeto off or mutethe out-
put. This ensuresthat the next sourceplayed
doesnot damageyour systemwith a high out-
put transient.
AnalogOutput Connections
Connectthe Krell CASTcablesfromthe left and
right Krell CAST4-pin outputs (13) on the KPS
28cbackpanel to your CAST-enabledpreampli-
fier. For balancedor single-endedoperation,
connectthe interconnect cablesfromeither the
left andright balanced(14) or the single-ended
(15) outputsonthe KPS28cbackpanelto either
the balancedor the single-endedinputs on your
preamplifier. (Theremainingoutputscanbecon-
nectedto anotherpreamplifierin a different sys-
tem.)
Note
Youcan set up your KPS28c to play a musi-
cal selection in three different areas. Connect
the CASToutput to a CAST-enabledsystemin
onelistening area, the balancedoutput to a
systemin a secondlistening area, andthe sin-
gle-endedoutput to a systemin a third listen-
ing area. Themusicalselection will play simul-
taneouslyin all three areas.
Digital OutputConnections
Connectthe cablesfromthe optics output(16)
coaxial output (17) onthe KPS28cbackpanel
yourdigital recorderor the digital input onyour
preamplifier.
POWERON
1. Connectthe ACpowercord to the IECpower
connector (20), then connect the ACpower
cordto the wall socket.TheKPS28cis in the
stand-by mode.Thered stand-by LED(3)
illuminates.
2. Pressthe powerbutton(4) or pwrkey(22)
switch the KPS28c fromthe stand-byto the
operational mode.Theblue powerLED(5)
illuminates andyouhear a click. TheKPS
28cis readyto play music.
TO PLAYA COMPACTDISC
1. Usethe open/close button (2) or openkey
(23) to openthe compactdisc transport (1).
2. Placea compactdisc onthe transport.
3. Usethe open/closebutton (2) or openkey
(23) to closethe compactdisc transport (1).
Playbackautomaticallybeginsfromthe first
track. Adjust the systemvolumethroughyour
preamplifieror amplifier.
4. Pressthe stopbutton(11) or key(28) to
compactdisc playback.
Note
Youcanalso begin track playbackby pressing
the playbutton(12) or key(29), or selecta track
using the direct track accesskeypad(26), the
track forwardandbackbuttons(8, 9) or keys(30)
or the searchforwardandbackkeys(31).
4 Krell PlaybackSystem28c

FIGURE 1 THE KPS 28c FRONT PANEL
2
POWER
98 10 11 12
KPS 28c
6 7
CompactDisc
TransportFunctions
1 CompactDiscTransport
2 Open/CloseButton
Power
3 Stand-byLED
4 PowerButton
5 PowerLED
CompactDisc Functions
6 HDCD
® LED
7 CompactDisc Display
8 TrackForwardButton
9 TrackBackButton
10 PauseButton andLED
11StopButton
12PlayButton

FrontPanelDescription
SeeFigureI onpage5
Thefront panel of the KPS28c accessespower
on and off and compactdisc functions. The
compactdisc display showscompactdisc play-
backandprogrammingstatus, Front panel fea-
tures andtheir descriptionsfollow.
CompactDisc Transport Functions
1 CompactDisc Transport
Thecompactdisc transport holds the compact
disc.
2 Open/CloseButton
Usethis button to openandclose the compact
disc transport.
Power
3 Stand-by LED
The red stand-by LEDilluminates whenthe
KPS28cis in the stand-by mode,
4 PowerButton
Usethis button to switch the KPS28cbetween
the stand-byandthe operational modes.
5 Power LED
Theblue powerLEDilluminates whenthe KPS
28c is in the operational modeand flashes
whenremotecontrol signals are received.
CompactDisc Functions
6 HDCD
® LED
The red HDCD
® LEDilluminates whena high
definition compatibledigital discis playing,indi-
cating that HDCD
®decodingis functioning.
7 CompactDisc Display
Thecompactdisc display showscompactdisc
playback and programmingstatus.
8 Track ForwardButton
Usethis button to select andbeginplaying the
trackthat followsthe currenttrack.
9 Track BackButton
Usethis button to select andbeginplaying the
track that precedesthe current track.
10 PauseButton and LED
Usethis button to temporarily suspendplay-
back of the current compactdisc track. To
resumeplaying the track at the point pausewas
engaged,press pauseagain or press the play
button (12) or key(29). Thered pauseLEDillu-
minates whenpauseis engaged.
11 Stop Button
Usethis button to endcompactdisc playback.
12 Play Button
Usethis button to activate playbackfrom the
beginningof the compactdisc, to resumeplay-
back after pause,or to start playing a pro-
grammedsequence.For moreinformation, see
OperatingYourKPS28c, on page13.
6 Krell PlaybackSystem28c

FIGURE 2 THE KPS 28c BACK PANEL
14
?
20
LEFT IN IN
KPS 28c
Krell Playback System
KRELLINDUSTRIES.INC.
4~ OONNAIRROAD
ORANGE,CT08477-3850
USA
18 19 21 17 16
AnalogOutputs
13 Left andRight CAST
Outputs
14 Left andRightBalanced
Outputs
15 Left andRightSingle-ended
Outputs
Digital Outputs
16OpticsOutput
17Coax(ial)Output
BackPanel Remote
Connections
1812 VDCIn
19RC-5In
Power
20lEOPowerConnector
21Line Fuse

BackPanelDescription
SeeFigure2 onpage7
Theback panel of the KPS28c provides Con-
nectionsfor analoganddigital outputs, power,
andremotecontrol inputs. Backpanelfeatures
andtheir descriptionsfollow.
AnalogOutputs
13 Left and Right CASTOutputs
TheKPS28c is equippedwith onepair of analog
outputswith 4-pin connectors,for usewith Krell
CAST-equippedpreamplifiers.
14 Left and Right BalancedOutputs
TheKPS28cis equippedwith onepair of bal-
ancedanalog outputs with XLRconnectors.
15 Left and Right Single-endedOutputs
TheKPS28cis equippedwith onepair of sin-
gle-endedanalogoutputs with RCAconnectors.
Digital Outputs
16 Optics Output
TheKPS28c is equipped with an EIAJ fiber
optic output with a TosLinkconnector.
17 Coaxial Output
TheKPS28cis equippedwith an S/PDIFcoax-
ial audiooutput with anRCAconnector.
BackPanel RemoteConnections
18 12 VDCIn
TheKPS28c is equipped with an input that
receives12 VDCpoweron/off (12 Volt trigger)
signals from other Krell componentsandfrom
other devicesthat incorporatea 12Volt trigger.
This allows youto activate the KPS28cthrough
another Krell componentand through other
componentsin a custominstallation, to easily
coordinate wholesystemsor portions of sys-
tems.
Notes
The12VDCinput poweris limited to 30ma.
Consult the owner’s reference manualof the
componentsusedin a custominstallation to take
full advantageof the remotecapabilities of the
KPS28c.
19 RC-5In
TheKPS28c is equipped with an RC-5input
that makescustominstallation easyandsecure
by accepting basebandRC-5input commands
fromhardwiredremotecontrols.
Power
20 IEC PowerConnector
TheI ECconnectoris for usewith the provided
IEC standard 15 ampACpowercord.
21 Line Fuse
The50/60 Hzline fuse protects the KPS28c
againstshort circuits fromthe external AC
power.
NOTE
Replacefusesonly with the fuse valuespecified
onthe backpanel.
8 Krell PlaybackSystem28c

FIGURE3 THE KPS 28c REMOTECONTROL
22
23
26
27
28
30
+10
MUTE
f-- OISPI-&Y~
(~ (~ (~OPEN MODE
0CL.R
PRO~
r-- LEVEL’~
PAUSE STOP PLAy
r-- TRACK’--I I’--SEAFICH --i
KPS 280
25
24
32
33
34
29
31
CompactDisc
TransportFunctions
22Pwr(PowerKey)
23 OpenKey
CompactDisc
DisplayFunctions
24Display ModeKey
25DisplayDimKey
CompactDisc
Functions
26 DirectTrackAccess
Keypad
27 PauseKey
28 StopKey
29 Play Key
30TrackForward’
andBackKeys
31 SearchFonNard
andBackKeys
SpecialPlay Functions
32Rep(Repeat)Key
33 NBKey
34Ping (Program)Key
Note:Thelevel andmutekeysare not functional on the KPS28c.
Krell PlaybackSystem

RemoteControl Description
SeeFigure3 onpage9
BA’n’ERYINSTALLATION
AND REMOVAL
TheKPS28c remotecontrol usestwo AAA-size
1.5 Volt batteries. Batteries are includedwith
the shipment.Toinstall thebatteries:
1. Removethe backplate, using the supplied
T-10 Torx wrench.
2. Install the batteries, following the battery
position diagramonthe plastic battery recep-
tacle.
3. Replaceandsecurethe backplate.
Theremotecontrol is readyfor operation.
Replacethe batteries whenthe remotecontrol
functionsintermittently. Removethe batteries if
the remotecontrolis notusedfor a longperiodof
time. Battery leakage can damagethe remote
control.
REMOTECONTROLFUNCTIONS
TheKPS28c remote control provides power,
display, programming,andcompactdisc func-
tions. Remotecontrol keys andtheir descrip-
tionsfollow.
Note
Accessthe level and mutefunctions through
your preamplifier or amplifier. Thelevel and
mutekeys are not functional on the KPS28c.
CompactDisc Transport Functions
22 Pwr(Power) Key
Usethis keyto switch the KPS28cbetweenthe
stand-by andthe operational modes.
23 OpenKey
Usethis keyto openthe compactdisc transport
(1). Toclose the transport, pressthe openkey
again.
CompactDisc Display Functions
24 Display ModeKey
Usethis key to cycle the compactdisc display
(7) through three options: the elapsedtime
the track currently playing, timeremainingin the
current track, andtotal remainingtime of the
disc or program. The options appear in the
compactdisc display as they are selected.
25 Display DimKey
Usethis keyto turn the compactdisc display (7)
onandoff.
CompactDisc Functions
26 Direct Track AccessKeypad
Usethe direct accesskeypadto select a com-
pact disc track. With the direct track access
function, the selected track begins playback
immediatelyafter youselect it. If the track you
wantto play is numbered1-9, pressthe keythat
correspondsto the track. Usethe +10 key to
accesstracks numbered10 or higher.
Example:To accesstrack 8, press the number
8 key once. Toaccesstrack 10, press the +10
key onceand the 0 key once. Toaccesstrack
24, pressthe +10keytwice andthe 4 keyonce.
Tracksconsisting of two digits mustbe keyed
within eight secondsof eachother.
27 PauseKey
Usethis key to temporarily suspendplaybackof
the current compactdisc track. To resumeplay-
ing the track at the point pausewasengaged,
presspauseagainor press the play button (12)
or key (29). Thered pauseLED(10) illuminates
whenpauseis engaged.
28 Stop, Key
Usethis key to endcompactdisc playback.
10 Krell PlaybackSystem28c

RemoteControl, continued
SeeFigure 3 onpage9
29 Play Key
Usethis key to start playbackfrom the begin-
ning of the compactdisc, to resumeplayback
after pause, or to start playback of a pro-
grammedsequence.
30 Track Forwardand BackKeys
Usethesekeys to select andbeginplaying the
track that follows or precedesthe current track.
31 Search Forward and Back Keys
Pressandhold thesekeys to scroll forward or
backwardthroughthe current track.
Special Play Functions
32 Rep (Repeat) Key
Pressthis keyonceto repeatthe entire disc or
track programcontinuously. REPEATappearsin
the compactdisc display (7). Press twice
repeat the current track continuously. REPEAT
SINGLEappears in the compactdisc display.
Pressa third timeto cancelthis function.
33 A/B Key
Usethis keyto create a playbackloop between
two predeterminedpoints within a single track
or sequential tracks. See Howto Create an
A/B Loop, on page14.
34 Prog (Program) Key
Usethis key to accessthe track programming
mode.Track programminglets you select the
tracks youwantto hearin the order youwantto
hear them. See Howto Write a Program, on
page13.
Krell PlaybackSystem28c 11

Connecting the KPS28c
toYourSystemSee Figure 2 on page 7
INPUT ANDOUTPUT
CONNECTIONS
AnalogOutput Connections
TheKPS28cis equippedwith three analogout-
put connections: CAST,balanced, and single-
ended.Krell recommendsusing its proprietary
Krell CASTsystemfor unparalleled sonic per-
formancebetweenthe KPS28c andother Krell
CAST-equippedcomponents.
TheKPS28calso offers conventional balanced
operation.Thecircuitry andconnectionsassocia-
ted with balancedoperationnot only canminimize
sonicloss but also are immuneto inducednoise,
especially for installations using long cables.
Balancedconnectionshave6 dBmoregain than
single-endedconnections.Pleasekeepthis speci-
fication in mindwhenlevel matchingis critical.
TheXLRpin configuration is describedbelow:
Pin1 Ground
Pin 2 Non-inverting(0
°)
Pin 3 Inverting (180
°)
TheCAST,balanced, andsingle-ended outputs
are located onthe backpanel. Maintainthe cor-
rectleft/right orientation.
IMPORTANT
Connecting non-CAST components to CAST
inputs or outputs can damageyour equipment
andvoid your warranty
Donot attempt to changeCASTcable termina-
tions or CASTinputs or outputs to RCAor XLR
connectors.It is electrically impossibleto con-
vert CASTinput or output connectionsfor bal-
ancedor single-endedvoltage operation.
Please read the Warranty, on page 15, to
understandthe warrantylimitations of the KPS
28c.
Digital OutputConnections
TheKPS28c is equippedwith one EIAJ fiber
optic digital outputwith a TosLinkconnectorand
onecoaxialdigital outputwith anRCAconnector.
Usethese connectionsto sendthis output to a
digital recordingdevice,externaldigital/analog
processor,or videosource.
CONNECTINGTHE KPS28c
Follow these steps to connect the KPS28c to
your system.
1. Makesure all power sources and compo-
nents are off before connectinginputs and
outputs.
2. Neatly organize wiring between the KPS
28c and betweenall system components.
Separate ACwires from audio cables to
prevent humor other unwantednoise from
beingintroducedinto the system.
3. Connectthe Krell CASTcables fromthe left
andright Krell CAST4-pin outputs (13)
the KPS28c back panel to your CAST-
enabledpreamplifier. For balancedor single-
endedoperation, connectthe interconnect
cablesfromeither the left andright balanced
(14) or the single-ended(15) outputson
KPS28cbackpanelto the balancedor sin-
gle-endedinputs on your preamplifier. (The
remaining outputs can be connected to
anotherpreamplifierin a different system.)
12 Krell PlaybackSystem28c

ConnectingYourKPS28c, continued
SeeFigure2 onpage7 Operating Your KPS28c
Note
Youcanset up your KPS28cto play a musi-
cal selectionin threedifferent areas.Connect
the CASToutput to a CAST-enabledsystem
in onelistening area, the balancedoutputto
a systemin a secondlistening area, andthe
single-endedoutputto asystemin athird lis-
tening area. Themusicalselection will play
simultaneouslyin all threeareas.
4. Connectthe cables from your digital audio
or video sourceto the optics output (16)
coaxial (17) digital output onthe KPS28c
back panel.
IMPORTANT
Whenswitching betweenactive sources, always
lowerthe volumeto off or mutethe output. This
ensuresthat the next sourceplayed doesnot
damageyoursystemwith a high output transient.
POWERON
1. Connect the ACpower cord to the IEC
powerconnector (20), then connect the
powercord to the wall socket. TheKPS28c
is in the stand-by mode.Thered stand-by
LED(3) illuminates.
2. Pressthe powerbutton (4) or pwr key(22)
to switch the KPS28cfrom the stand-by to
the operational mode.Theblue powerLED
(5) illuminates andyou hear a click. The
KPS28c is readyto play music.
This section provides moreinformation about
operating the KPS28c.
TO PLAYA COMPACTDISC
1. Usethe open/closebutton (2) or openkey
(23) to openthe compactdisc transport (1).
2. Placea compactdisc on the transport.
3. Usethe open/closebutton (2) or openkey
(23) to close the compactdisc transport(1).
Playbackautomaticallybeginsfromthe first
track. Adjust systemvolumethrough your
preamplifieror amplifier.
4. Pressthe stopbutton(11) or key(28) to
compactdisc playback.
Note
Youcan also begin track playbackby pressing
the playbutton(12) or key(29), or selecta track
using the direct track accesskeypad(26), the
track forward andbackbuttons (8, 9) or keys
(30) or the searchforward andbackkeys(31).
HOWTO WRITE A PROGRAM
This short-term programminglets youstore a
maximumof 20 tracks in a programsequence.
Note
Trackforward,track back,repeat,andpausefunc-
tion normallywithin a programmedsequence.For
a description of theseremotecontrol keys, see
RemoteControlDescription, pages10-11.
1. Press the prog (program) key (34) on
remote control. PROGRAMappears in the
compactdisc display (7).
Krell PlaybackSystem28c 13

Operatingthe KPS28c, continued
Keyin the desiredtrack sequenceusing the
direct track accesskeypad(26). Theselect-
edtracks, the numberof tracks selected,and
the total playing time of the programmed
track sequenceappearin the compactdisc
display in the order in whichthe tracks are
stored.
Note
Tracksconsisting of twodigits mustbe keyed
within eight secondsof eachother.
3. Pressthe playbutton(12) or key(29)to begin
playbackof a programmedsequence.
4. Pressthe stopbutton(11) or key(28) once
stopplayback.
To Clear a ProgrammedSequence:
1. Pressthe stop key(28) twice to clear the
entire program.
2. Pressthe stop keythen the clr key onthe
direct track accesskeypad(26) to remove
selected tracks from the programmedse-
quence.Thetrack that wasprogrammedlast
is removedfirst.
Note
If youpress the powerbutton (4) or key (22)
andplace the KPS28c in the stand-by mode,
the programmedsequence is automatically
erased.
HOWTO CREATEAN A/B LOOP
1. Beginplaying a track by pressing the play
button(12) or key(29), or selectatrackusing
the direct track accesskeypad(26), the track
forwardandthe backkeys(30) or the search
forwardandbackkeys(31).
2. Whenyou hear the selection that you want
as the beginningof the loop, pressthe A/B
key (33) to insert the start position. The
phrase REPEATA-B flashes in the compact
discdisplay(7).
3. Whenyou hearthe selection youwantas the
endof the loop, pressthe A/B keyagainto
insert the finish position. REPEATA-Bstops
flashing.
4. Playbackof the loop begins automatically
andcontinuesuntil youpressthe stopbutton
(11)or key(28).
5. Pressthe stop buttonor keyagainto delete
the A/Bloop.
14 Krell PlaybackSystem28c

Warranty
ThisKrell producthasalimitedwarrantyof five yearsfor
partsandlaboroncircuitry andthreeyearsfor partsand
laboronall mechanicalcomponents.Shouldthis productfail
toperformatanytimeduringthewarranty,Krellwill repairit
at nocostto theowner,exceptassetforth in this warranty.
Thewarrantydoesnotapplyto damagecausedby actsof
Godor nature.
Thewarrantyonthis pageshallbein lieu of anyotherwar-
ranty,expressedorimplied,including,butnotlimitedto, any
impliedwarrantyof merchantabilityor fitnessfor aparticular
purpose.Thereare nowarrantieswhichexceedbeyond
thosedescribedin this document.If this productdoesnot
performaswarrantedherein,theowner’ssoleremedyshall
berepair.Innoeventwill Krellbeliablefor incidentalor con-
sequentialdamagesarisingfrompurchase,use,or inability
to usethis product,evenif Krell hasbeenadvisedof the
possibility of suchdamages.
Proofof purchasein theformof abill of saleor receipted
invoicesubstantiatingthat theunit is withinthewarranty
periodmustbepresentedto obtainwarrantyservice.The
warrantybeginsonthedateof retail purchase,asnotedon
thebill of saleor receiptedinvoicefromanauthorizedKrell
dealerordistributor.
Thewarrantyfor Krellproductsis validonlyin thecountryto
whichtheywereoriginally shipped,throughthe authorized
Krelldistributorfor that country,andat thefactory.There
mayberestrictions onor changesto Krell’s warranty
becauseof regulationswithin a specific country.Please
checkwithyourdistributor for a completeunderstandingof
thewarrantyin yourcountry.
If aunit is servicedbyadistributorwhodidnotimportthe
unit, theremaybeachargefor service,evenif theproduct
is withinthewarrantyperiod.
Freightto thefactoryis yourresponsibility.Returnfreight
withintheUnitedStates(U.S.A.)is includedin thewarranty.
If youhavepurchasedyourKrell productoutsidetheU.S.A.
andwishto haveit servicedat thefactory,all freight and
associatedchargesto thefactoryareyourresponsibility.
Krellwill payreturnfreightto theU.S.A.-basedfreightfor-
warderof yourchoice.Freightandotherchargesto shipthe
unit fromthefreight forwarderto youarealsoyourrespon-
sibility.
Krell is notresponsiblefor anydamageincurredin transit.
Krellwill file claimsfor damagesasnecessaryfor unitsdam-
agedin transit tothefactory.Youareresponsiblefor filing
claimsfor shippingdamagesduringthe returnshipment.
Krell doesnot supplyreplacementpartsand/orproductsto
theownerof theunit. Replacementparts and/orproducts
will befumishedonlyto thedistributorperformingserviceon
this unit onanexchangebasisonly;anypartsand/orprod-
uctsreturnedto Krell for exchangebecomethe propertyof
Krell.
Noexpressedor impliedwarrantyis madefor anyKrell
productdamagedbyaccident,abuse,misuse,natural or
personaldisaster,orunauthorizedmodification.
Anyunauthorizedvoltage conversion,disassembly,
componentreplacement,perforation of chassis,
updates,or modificationsperformedto the unit will
voidthe warranty.
IMPORTANT
Connectingnon-CASTcomponentsto CASTinputs or out-
putscandamageyourequipmentandvoid yourwarran~
Donot attempt to changeCASTcableterminations or
CASTinputs or outputsto RCAor XLRconnectors.It is
electrically impossibleto convertCASTinputor outputcon-
nectionsfor balancedor single-endedvoltageoperation.
Theoperatingvoltageof this unit is determinedbythefac-
tory andcanonlybechangedbyanauthorizedKrell distrib-
utoror at the factory.Thevoltagefor this productin the
U.S.A.cannotbechangeduntil six monthsfromtheoriginal
purchasedate.
In theeventthat Krell receivesaproductfor warrantyser-
vicethat hasbeenmodifiedin anywaywithoutKrell autho-
rization,all warrantiesonthatproductwill bevoid.Theprod-
uctwill bereturnedto originalfactorylayoutspecificationsat
the owner’sexpensebeforeit is repaired. All repairs
requiredaftertheproducthasbeenreturnedto originalfac-
tory specificationswill bechargedto thecustomer,at cur-
rentpartsandlaborrates.
All operationalfeatures,functions,andspecificationsand
policiesaresubjectto changewithoutnotification.
Toregister yourproductfor warrantybenefits,
please complete and return the Warranty
Registration Cardenclosedin the shippingbox
within 15 daysof purchase.Thankyou.
Krell PlaybackSystem28c 15

ReturnAuthorization
Procedure
If youbelievethere is a problemwith your com-
ponent,pleasecontactyourdealer, distributor,
or the Krell factory to discuss the problem
before youreturn the componentfor repair. To
expedite service, youmaywishto completeand
e-mail the Service RequestFormin the Service
Sectionof ourwebsiteat:
http://www.krellonline.com
TocontacttheKrell
®ServiceDe)artment
TEL [phone]
Monday-Friday
9:00 AMto 5:00 PMEST
FAX [phone]
[e-mail]
WEBSITEhttp://www.krellonline.com
Krell PlaybackSystem28c
PRODUCT SERIALNUMBER
Toreturn a productto Krell, please follow
this procedure so that we mayserve you
better,
1. Obtain a Return Authorization Number(R/A
number) and shipping address from the
Krell ServiceDepartment.
2. Insure andacceptall liability for loss or
damageto the product during shipment to
the Krell factoryandensureall freight (ship-
ping) chargesare prepaid.
The product mayalso be hand delivered if
arrangementswith the Service Departmenthave
beenmadein advance.Proof of purchasewill
berequiredfor warrantyvalidation at the timeof
handdelivery.
IMPORTANT
Usethe original packagingto ensurethe safe
transit of the productto the facto~ dealer, or
distributor. Krell may,at its discretion, returna
productin newpackagingandbill the ownerfor
suchpackagingif the productreceivedby Krell
wasboxedin nonstandardpackagingor if the
original packagingwasso damagedthat it was
unusable,ff Krell determinesthat newpackag-
ing is required,the ownerwill benotified before
the productis returned.
Topurchaseadditional packaging,please con-
tact yourauthorizedKrell dealer, distributor, or
the Krell ServiceDepartmentfor assistance.
16 Krell PlaybackSystem28c