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
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2
3
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3
4
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6
8
10
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12
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13
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14
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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