Krell Industries KPS 25sc User's Manual
Contents
1. The warranty on this page shall be in lieu of any other war ranty expressed or implied including but not limited to any implied warranty of merchantability or fitness for a particular purpose There are no warranties which exceed beyond those described in this document If this product does not perform as warranted herein the owner s sole remedy shall be repair In no event will Krell be liable for incidental or con sequential damages arising from purchase use or inability to use this product even if Krell has been advised of the possibility of such damages Proof of purchase in the form of a bill of sale or receipted invoice substantiating that the unit is within the warranty period must be presented to obtain warranty service The warranty begins on the date of retail purchase as noted on the bill of sale or receipted invoice from an authorized Krell dealer or distributor The warranty for Krell products is valid Neal in the country to which they were originally shipped through the authorized Krell distributor for that country and at the factory There may be restrictions on or changes to Krel s warranty because of regulations within a specific country Please check with your distributor for a complete understanding of the warranty in your country lf a unit is serviced by a distributor who did not import the unit there may be a charge for service even if the product is within the warranty period Freight to the2. 28 Variable Output Mute Button and LED Use this button to mute the variable output The LED illuminates when the variable output is muted 29 Menu Button and LED _ Use the menu control button to access menu functions for customizing the KPS 25sc The LED illuminates when the menu feature is acti vated See Customizing Configurations on page 27 30 Phase LED The absolute phase LED illuminates when the absolute polarity of the variable or CAST out puts is reversed 13 FIGURE 4 31 THE KPS 25sc BACK PANEL 32 33 37 3 39 42 43 44 45 48 49 o0 34 35 36 40 41 Analog Inputs and Outputs 31 B 1 Left and Right Inputs 32 Tape In Left and Right 33 Tape Out Left and Right 34 S 1 Left and Right Inputs 35 S 2 Left and Right Inputs 36 S 3 Left and Right Inputs Acrylic Cover _ 37 Lid Damper Adjust 46 47 Fixed and Variable Balanced Outputs 38 Fixed Left and Right 39 Variable Left and Right Fixed and Variable Single Ended Outputs 40 Fixed Left and Right 41 Variable Left and Right Krell CAST Outputs 42 Krell CAST Outputs Left and Right Digital Inputs and Outputs 43 Optics1 and Optics2 Outputs 44 Coax1 and Coax2 Outputs 45 AES Output and Input 46 Optics1 and Optics2 Inputs 47 Coax1 and Coax2 Inputs 51 52 53 54 Power ae 48 Back Panel Power Switch 49 Line Fuse 50 IEC Connector Back Panel Remote Connections 51 Krell Link Out 52 Krell Link In 53 RC 5 54 12 VDC Out B
3. 2 S PDIF 75 Ohms 0 5 V via RCA connectors 2 EIAJ optical via TosLink connectors _ ANALOG INPUTS 1 pair balanced via XLR connectors 4 pair single ended via RCA connectors ANALOG OUTPUTS 1 pair fixed balanced and 1 pair variable balanced via XLR connectors 2 pair fixed single ended and 1 pair variable single ended via RCA connectors 1 pair variable Krell CAST via 4 pin bayonet connectors VOLUME CONTROL RESOLUTION 16 bit BALANCE CONTROL RESOLUTION 0 5 dB REMOTE CONTROL 1 tabletop direct access wireless infrared 1 handheld wireless infrared 1 RC 5 via a DC power connector 1 12 VDC Input 12 V trigger via a 3 5 mm mini plug 1 Krell Link input 1 Krell Link output DIMENSIONS WITH COVER CLOSED 19 0w x 5 3h x 15 4d in 48 3w x 13 5 h x 39 1d cm HEIGHT WITH COVER OPEN 20 in 50 cm WEIGHT Shipping 78 0 Ib 35 5 kg Unit only 45 0 Ib 20 5 kg All operational features functions specifications and policies are subject to change without notification
4. Throughput is inactive 6 Rotate the level knob 25 or press level key to YEs to engage Theater Through put 7 Press the menu control button 29 or key to lock in the setting 8 Press the menu control button 29 or key again to exit the menu mode IMPORTANT Make sure that the source component is a sur round sound processor Source components that are not surround sound processors should not be connected to an input configured for Theater Throughput Doing so can result in excessive and possibly damaging volume lev els when the source component is played Always turn off the source component before you configure any input on the KPS 25sc for Theater Throughput To disengage an input from Theater Throughput 1 Press the menu control button 29 or menu key The word MENU appears in the menu display 26 2 Rotate the level knob 25 or press level key until the word THEATER appears 3 Press the menu control button 29 or key again The word cD appears Krell KPS 25sc 4 Rotate the level knob 25 or press level key to select the input for Theater Throughput 5 Press the menu control button 29 or key again to display the current theater mode setting The display reads yes when Theater Throughput is active and No when Theater Throughput is inactive 6 Rotate the level knob 25 or press level key to No to disengage Theater Throughput 7 Press the menu control button 29 or key to lock in th
5. system each component is a discrete entity with unique characteristics that act upon the musical signal independently Each component is unaware of the other components in the system The cables that connect the components each have their own electrical characteristics which affect the sonic presentation of the entire system CAST A New Approach CAST circuitry recognizes signal transmitted in the current domain instead of the voltage domain between each component CAST trans mission unifies the individual components and their interconnects into an electrically linked whole The sonic presentation of the entire sys tem remains intact CAST Basics Here s how a CAST audio system works Internally each CAST source transfers or amplifies current using Krell Current Mode cir cuitry This current signal is then output using CAST circuitry When the signal is received by a CAST input Krell Current Mode circuitry again takes over until the signal reaches the loudspeaker By maintaining the musical signal in the current domain from beginning to end an entire CAST system behaves as if it is one com ponent With CAST anomalies of signal transmis Krell KPS 25sc sion between components are eliminated Cable impedances and their effects on the transmitted signal are non existent How CAST and Krell Current Mode Interact While CAST is a new method of transferring the musical signal between components its origin stems from
6. FIGURE 1 Attaching the KPS 25sc Acrylic Cover 7 FIGURE 2 Connecting the KPS 25sc Flex Foil Cable 8 FIGURE 3 The KPS 25sc Front Panel 11 FIGURE 4 The KPS 25sc Back Panel 14 FIGURE 5 The KPS 25sc Tabletop 17 Krell KPS 25sc Introduction Thank you for your purchase of the KPS 25sc Krell Playback System The integrated design of the KPS 25sc incorporates a compact disc transport a digital to analog processor and a high resolution preamplifier in one stand alone unit The compact disc transport design pro vides high position accuracy and eliminates servo bounce and vibration An acrylic cover protects the integrity of the compact disc data The analog preamplifier features exceptionally wide bandwidth with extremely low noise and the digital to analog converter makes the KPS 25sc compatible with nearly every digital audio source Menu features allow customizing of cover operation and color menu display brightness input naming and volume controls for optimum functioning and ease of use The KPS 25sc provides a variety of main out puts Krell CAST variable balanced and single ended variable and balanced and single ended fixed level for connecting to a second system The KPS 25sc can be connected to multi room switchers that operate whole house music sys tems The Theater Throughput feature simplifies integration of an audio video surround sound processor with the KPS 25sc Two remote con trol units a full
7. KRELL CAST TECHNOLOGY 3 UNPACKING 4 PLACEMENT 4 AC Power Guidelines 4 QUICK START E Factory Default Settings 5 Input and Output Connections 5 Power On 6 To Play a Compact Disc 6 To Play Another Input Source 6 INSTALLING THE ACRYLIC COVER 9 Attaching the Acrylic Cover 9 Connecting the Flex Foil Cable 10 Adjusting the Cover Closing Speed 10 FRONT PANEL DESCRIPTION 12 BACK PANEL DESCRIPTION 15 REMOTE CONTROL DESCRIPTION 18 Battery Installation and Removal 18 Tabletop Remote Control 18 CONNECTING THE KPS 25sc TO YOUR SYSTEM 22 Input and Output Connections re 22 Power On 23 Factory Default Settings 23 KRELL LINK CONNECTIONS AND OPERATION 24 Connecting Components Through Krell Link 24 Krell Link Operation a 24 TAPE INPUT AND OUTPUT 25 Krell KPS 25sc o Contents continued and Handheld Remote Controls Page OPERATING YOUR KPS 25sc _ 26 To Play a Compact Disc 26 How to Write a Program 26 How to Create an A B Loop 27 To Play Another Input Source 27 CUSTOMIZING CONFIGURATIONS _ 27 Change the Cover Operation Mode 27 Change the Shutter Operation Mode 28 Configuring for Theater Throughput 28 Amplifier Control Options 29 Adjust Menu Display Brightness 30 Assign Custom Names to Inputs 30 Change an Input s Volume Trim 31 Change the Volume Control Sensitivity 31 Return All Settings to Factory Defaults 31 WARRANTY 32 RETURN AUTHORIZATION PROCEDURE 33 SPECIFICATIONS Back Cover Illustrations Page
8. Krell Current Mode the technology developed to transfer the musical signal within a component CAST combined with Krell Current Mode takes circuitry signal transmis sion to the next evolutionary level In essence Krell Current Mode maintains the integrity of the signal within the component and CAST pre serves the transmitted signal between compo nents Together CAST and Krell Current Mode technologies unify separate Krell components into a single global circuit CAST Cable Construction A CAST system uses cables T by Krell and other manufacturers specially licensed by Krell Thin and flexible CAST cables are constructed with the same build quality as other Krell products and are aesthetically matched to the components that Krell manufac tures An all metal body and locking connectors with gold contacts are part of the standard no compromise specification developed for every CAST cable made The Best Musical Performance When you operate a CAST system you will hear significant improvements in every perfor mance area speed precision dynamic range depth and width of the sound stage transient impact tonal balance harmonic distortion and more The goal for CAST is the same company goal used for all Krell products Krell strives for the delivery of the best performance of a musi cal event for you using the full expression of technology to date Unpacking 1 Open the shipping box and remove the top l
9. a recording To activate this function select an audio source for record ing using either the S 1 S 2 S 3 or B 1 input selector buttons 20 23 or keys Press the tape button 24 or tape key on the Tabletop Remote Control to switch between the tape recorder output red LED illuminated and the input source red LED not illuminated Use the tape output to create a processor loop when the KPS 25sc is connected to a Krell KPS 25sc graphic equalizer or other ancillary equip ment To activate this function connect the equipment to the KPS 25sc tape outputs 33 as described in the equipment manu facturer s manual Press the tape button 24 or tape key on the Tabletop Remote Control to switch between the processor output red LED illuminated and the input source red LED not illuminated Note When changing sources lower the volume to off or mute the output This ensures that the next source played does not damage your sys tem with a high output transient 25 Operating Your KPS 25sc This section provides more detailed informa tion about operating the KPS 25sc TO PLAY A COMPACT DISC 1 After the KPS 25sc is initialized and in stand by mode use the power button 12 or key to switch the component to the operational mode The blue power LED 13 illuminates The compact disc transport is active 2 Gently raise the acrylic cover until it is upright approx 90 angle 3 Remove the prov
10. amplifier connected to your system they do not activate the KPS 25sc 21 Connecting the KPS 25sc to Your System See Figure 4 on pags 14 INPUT AND OUTPUT CONNECTIONS Krell recommends using its proprietary Krell CAST system for unparalleled sonic perfor mance between the KPS 25sc and other CAST equipped components such as the Full Power Balanced amplifiers or the Master Reference Amplifiers The KPS 25sc also offers balanced operation The circuitry and connections associated with balanced operation not only can minimize sonic loss but also are immune to induced noise especially for installations using long cables Follow these steps to connect the KPS 25sc to your system IMPORTANT Connecting non CAST components to CAST inputs or outputs can damage your equipment and void your warranty Do not attempt to change CAST cable termina tions or CAST inputs or outputs to RCA or XLR connectors It is electrically impossible to con vert CAST input or outout connections for bal anced or single ended voltage operation Please read the Warranty on page 32 to under stand the warranty limitations of the KPS 25sc 1 Make sure all power sources and compo nents are off before connecting inputs and outputs 2 Neatly organize wiring between the KPS 25sc and the preamplifier and amplifier and between all other components Separate AC wires from audio cables to prevent hum and other unwanted noises from being in
11. and LED 28 Variable Output Mute Button and LED 29 Menu Button and LED 30 Phase LED 28 Front Panel Description See Figure 3 on page 11 The front panel of the KPS 25sc accesses power on and off compact disc functions digi tal and analog input selections volume and bal ance control menu selection and mute The displays show the status of compact disc play back and volume balance and menu Compact Disc Transport Functions 1 Compact Disc Display The compact disc transport display shows the track number of the compact disc that is playing as well as programming and other status information 2 Pause Button Use this button to temporarily suspend play back of the compact disc track To resume play ing the track at the point pause was engaged press the play button 4 3 Stop Button Use this button to stop compact disc playback 4 Play Button Use this button to activate playback from the beginning of the compact disc or to resume playback after pause For more information see Operating Your KPS 25sc on page 26 and Customizing Configurations on page 27 5 HDCD LED The HDCD LED illuminates when a High Definition Compatible Digital disc is playing indicating that HDCD decoding is functioning 6 SYNC LED The SYNC LED illuminates when the KPS 25sc digital input selection has locked on to a valid signal from the internal transport or an external source component 7 Search Back Bu
12. factory is your responsibility Return freight within the United States U S A is included in the warranty lf you have purchased your Krell product outside the U S A and wish to have it serviced at the factory all freight and associated charges to the factory are your responsibility Krell will pay return freight to the U S A based freight for warder of your choice Freight and other charges to ship the unit from the freight forwarder to you are also your respon sibility 32 the owner of the unit Krell is not responsible for any damage incurred in transit Krell will file claims for damages as necessary for units dam aged in transit to the factory You are responsible for filing claims for shipping damages during the return shipment Krell does not supply replacement parts and or products to Replacement parts and or products will be furnished only to the distributor performing service on this unit on an exchange basis only any parts and or prod ucts returned to Krell for exchange become the property of Krell No expressed or implied warranty is made for any Krell product damaged by accident abuse misuse natural or personal disaster or unauthorized modification Any unauthorized voltage conversion disassembly component replacement perforation of chassis updates or modifications performed to the unit will void the warranty IMPORTANT Connecting non CAST components to CAST inputs or out puts can damage
13. into the closed position see detail E 4 4 Recheck that the flex foil cable is curved but not crimped The acrylic cover is now ready for operation ADJUSTING THE COVER CLOSING SPEED You can adjust the cover closing speed using the lid damper adjust screw 37 on the back panel Adjustments can be made while the cover is up or down To decrease speed turn the screw _ Clockwise in 1 8 inch increments To increase speed turn the screw coun terclockwise in 1 8 inch increments IMPORTANT The lid damper adjust screw is very sensitive Always support the cover while adjusting the screw to keep the cover from closing too fast Krell KPS 25sc FIGURE 3 THE KPS 25sc FRONT PANEL 8 9 10 11 12 Compact Disc Transport Functions 1 Compact Disc Display 2 Pause Button 3 Stop Button 4 Play Button 5 HDCD LED 6 SYNC LED 7 Search Back Button 8 Search Forward Button 9 Track Back Button 10 Track Forward Button 11 Drive Off Button 12 Power Button and Stand by LED 13 Power LED 13 Spee emer ao ie ha Se CD no A aka Digital inputs and LEDs 14 CD Button 15 AES Button 16 Optics1 Button 17 Optics2 Button 18 Coax1 Button 19 Coax2 Button Analog Inputs and LEDs 20 B 1 Button 21 S 1 Button 22 S 2 Button 23 S 3 Button 24 Tape Button 4 15 21 22 26 27 16 17 1819 20 2423 2 29 30 Volume Adjustment and Menu Functions 25 Level Knob 26 Menu Display 27 Fixed Output Mute Button
14. lt RELL KPS 25sc O THE LEADER IN AUDIO ENGINEERING Krell Playback System with Krell CAST Technology Instructions for Use Owner s Reference _ 45 Connair Road Orange CT 06477 3650 USA KPS 25sc_ a E i Krell Industries Inc _ Krell Playback System with Krell CAST Technology v 00 1 TEL 203 799 9954 FAX 203 891 2028 E MAIL krell krellonline com WEBSITE http www krellonline com CE This product complies with the EMC directive 89 336 EEC and the low voltage directive 73 23 EEC WARNINGS The KPS 25sc must be placed on a firm level surface where it is not exposed to dripping or splashing Do not remove or bypass the ground pin on the end of the AC power cord This can cause radio frequency interference RFI to be introduced into your playback eel eperaig the KPS 25sc only with the power cord supplied The ventilation grids on the top of the KPS 25sc must be unobstructed at all times during operation Do not place flammable material on top of or beneath the component _ Turn off all systems power before connecting the KPS 25sc to any component Make sure all cable termina tions are of the highest quality free from frayed ends short circuits or cold solder joints Connecting non CAST components to CAST mets or outputs can damage your equipment and void your war ranty Do not attempt to change CAST cable terminations or CAST inputs or outputs to RCA or XLR connectors It is electrical
15. terminals to a common ground reference point The industry standard for professional and sound recording installations balanced connections have 6 dB more gain than single ended connections and allow the use of long interconnect cables Balanced connections are completely immune to induced noise from the system or the envi ronment Definition of Terms continued Krell Current Audio Signal Transmission CAST _ A proprietary Krell circuit technology for con necting analog components in which the audio waveform is transmitted between components in the current rather than voltage domain The speed and bandwidth provided by Krell CAST yields accurate realistic music reproduction Krell components connected via CAST perform as if they are all part of a single circuit Single ended A two wire input or output circuit Use care when using single ended connections as the ground connection is made last and broken first Turn the system off prior to making or breaking single ended connections Single ended connections are not recommended for connections requiring long cable runs OPERATION Off 7 When the power button on the front panel is pressed and the blue power LED turns off the gt component is off Operational Mode When the power button on the front panel is pressed and the blue power LED illuminates the component is in the operational mode and ready to play music Stand by Mode A low power con
16. to exit the menu mode To power on the amplifiers after the KPS 25sc is powered on point the remote control at the KPS 25sc and press the amplifier power key ADJUST MENU DISPLAY BRIGHTNESS This function lets you increase menu display brightness for easy viewing or completely dim the menu display 1 Press the menu control button 29 or menu key The word MENU appears in the menu display 26 2 Rotate the level knob 25 or press level key until the word BRIGHT appears 3 Press the menu control button 29 or key again The current brightness level appears in the menu display 26 4 Rotate the level knob 25 or press the level key to view brightness levels 30 5 When the brightness level is set to the desired level press the menu control button 29 or key to lock in the setting 6 Press the menu control button 29 or key again to exit the menu mode ASSIGN CUSTOM NAMES TO INPUTS This function lets you assign custom rather than generic names to digital or analog inputs on the KPS 25sc for ease of input identification and use 1 Press the menu control button 29 or menu key The word MENU appears in the menu display 26 2 Rotate the level knob 25 or press level key until the word NAME appears 3 Press the menu control button 29 or key again The word AES appears 4 Rotate the level knob 25 or press level key to select the input to which you want to assign a custom name 5 Press th
17. your equipment and void your warranty Do not attempt to change CAST cable terminations or CAST inputs or outputs to RCA or XLR connectors It is electrically impossible to convert CAST input or output con nections for balanced or single ended voltage operation The operating voltage of this unit is determined by the fac tory and can only be changed by an authorized Krell distrib utor or at the factory The voltage for this product in the U S A cannot be changed until six months from the original purchase date In the event that Krell receives a product for warranty ser vice that has been modified in any way without Krell autho rization all warranties on that product wiil be void The prod uct will be returned to original factory layout specifications at the owner s expense before it is repaired All repairs required after the product has been returned to original fac tory specifications will be charged to the customer at cur rent parts and labor rates All operational features functions and specications and policies are subject to change without notification To register your product for warranty benefits please complete and return the Warranty Registration Card enclosed in the shipping box within 15 days of purchase Thank you Krell KPS 25sc Return Authorization Procedure If you believe there is a problem with your com ponent please contact your dealer distributor or the Krell factory to discuss the
18. 18 Coax1 Button 19 Coax2 Button Use these buttons to select the corresponding rear panel input that is connected to a S PDIF coaxial source Analog Inputs and LEDs _ The KPS 25sc is equipped with the following analog inputs The red LED above each button illuminates when that input is selected 20 B 1 Button Use this button to select the corresponding rear panel input that is connected to a balanced ana log source 21 S 1 Button 22 S 2 Button 23 S 3 Button Use these buttons to select the eeqesooncing rear panel input that is connected to a single ended analog source Krell KPS 25sc 24 Tape Button Use this button to select the corresponding rear panel input that is connected to a tape source For instructions on using this function see Tape Input and Output on page 25 Volume Adjustment and Menu Functions 25 Level Knob Use this knob to increase or decrease system volume level Volume level is shown in the menu display 26 The level control knob is also used along with the menu control button 29 to select menu functions to customize KPS 25sc features See Customizing Con figurations on page 27 26 Menu Display lt The menu display shows volume level balance level and menu function selection and status See Customizing Configurations on page 2 27 Fixed Output Mute Button and LED Use this button to mute the fixed output The LED illuminates when the fixed output is muted
19. ON The KPS 25sc acrylic cover is mechanically damped to ensure smooth operation while clos ing If you force the cover to close you will damage the cover and the damping assembly During operation do not force the cover to close _ faster than the damping mechanism allows To adjust the cover closing speed see Adjust ing the Cover Closing Speed on page 10 CHANGE THE SHUTTER gt OPERATION MODE gt The shutter operation mode lets you choose when the cover is clear or opaque The three shutter operation modes are Clear The cover is clear at all times Opaque The cover is opaque at all times Auto The cover automatically becomes opaque when a compact disc is playing to protect com pact disc data When the compact disc is not playing the cover becomes clear factory default To change the shutter operation mode 1 Press the menu control button 29 or menu key The word MENU appears in the menu dis play 26 2 Rotate the level knob 25 or press level key until the word SHUTTER appears 3 Press the menu control button 29 or key again The current shutter operation mode ears in the menu display 26 28 4 Rotate the level knob 25 or press the level key to select the desired shutter operation mode 5 Press the ee button 29 or key to lock in the setting 6 Press the menu control button 29 or key again to exit the menu mode CONFIGURING FOR THEATER THROUGHPUT You
20. ack Panel Description See Figure 4 on page 14 The KPS 25sc back panel provides connections for all inputs and outputs power on off and additional remote connections Analog Inputs and Outputs 31 B 1 Left and Right Inputs The KPS 25sc is equipped with one pair of bal anced analog source inputs with XLR connec tors 32 Tape In Left and Right The KPS 25sc is equipped with one pair of sin gle ended tape source inputs with RCA con nectors 33 Tape Out Left and Right The KPS 25sc is equipped with one pair of sin gle ended tape source outputs with RCA con nectors 34 S 1 Left and Right Inputs 35 S 2 Left and Right Inputs 36 S 3 Left and Right Inputs The KPS 25sc is equipped with three pairs of single ended analog source inputs with RCA connectors Acrylic Cover 37 Lid Damper Adjust Use this screw to adjust the speed at which the acrylic cover closes See Adjusting the Cover Closing Speed on page 10 Fixed and Variable Balanced Outputs 38 Fixed Left and Right The KPS 25sc is equipped with one pair of fixed level balanced outputs with XLR connectors Krell KPS 25sc 39 Variable Left and Right The KPS 25sc is equipped with one pair of vari able level balanced outputs with XLR connec tors IMPORTANT When the KPS 25sc is connected directly to a Krell stereo power amplifier or a pair of Krell monaural power amplifiers that do not have _ gain control use the variable output terminals t
21. and Menu Functions Level Down and Up Keys Use these keys to increase or decrease Sensi volume level The volume level is shown in the menu display 26 Also use these keys along with the menu con trol button 29 or key to select menu functions to customize KPS 25sc features See Custom izing Configurations on page 27 Balance L eft and R ight Keys Use these keys to balance speaker output The left key shifts balance to the left in 1 dB incre ments the right key shifts balance to the right in 1 dB increments Balance status is shown in the menu display 26 Menu Key Use this key to access menu functions for cus tomizing the KPS 25sc See Customizing Configurations on page 27 Fixed Mute Key Use this key to mute the fixed output The LED above the fixed output mute button 27 illumi nates when the fixed output is muted Variable Phase Key Use this key to invert the absolute polarity of the variable output 180 degrees The phase LED 30 illuminates when the polarity of the main output is reversed _ Variable Mute Key Use this key to mute the variable output The LED above the variable output mute button 28 illuminates when the variable output is muted 20 Analog inputs B 1 Key Use this key to select the corresponding rear panel input mal is connected to a balanced ana log source S 1 S 2 and S 3 Keys Use these keys to select the corresponding rear panel input that is conne
22. ayer of foam You see these items KPS 25sc acrylic cover in velvet pouch KPS 25sc tabletop remote control KPS 25sc handheld remote control packages of AAA size 1 5 Volt batteries 4 for tabletop remote control 2 for handheld remote control compact disc clamp IEC connector AC Power cord 12 VDC 12 V trigger cable T 10 Torx wrench for remote control battery installation and removal 1 cleaning kit for the acrylic cover 1 packet containing the owner s reference manual and the warranty registration card MN i h b ee 2 Carefully remove the unit and accessories from the shipping box Remove the foam end caps and protective plastic wrap from the KPS 25sc Notes If any of these items are not included in the shipping box please contact your authorized Krell dealer distributor or Krell for assistance Save all packing materials If you ship your KPS 25sc in the future repack the unit in its original packaging to prevent transit damage See Return Authorization Procedure on page 33 for more information Placement _ Before you install the KPS 25sc into your sys tem review the following guidelines to properly place your component This will facilitate a clean trouble free installation The KPS 25sc does not require a special rack or cabinet for installation For the dimensions of the KPS 25sc see Specifications on the back cover The KPS 25sc requires at least two inches 5 cm
23. can simplify the integration of an audio video surround sound processor into your system by setting the S 1 S 2 S 3 or B 1 inputs to operate as a unity gain stage Krell calls this configuration Theater Th roughput When you configure a KPS 25sc input for Theater Throughput the KPS 25sc volume and balance controls are transferred to the audio video surround sound processor for integrated volume and balance management and ease of operation When the KPS 25sc input is config ured for Theater Throughput and connected to the audio video surround sound processor s input configured for Theater Throughput all KPS 25sc volume and balance adjustments are made through the surround sound processor When you disengage the KPS 25sc input from Theater Throughput the volume and balance controls revert to the KPS 25sc To select an input for Theater Throughput 1 Press the menu control button 29 or menu key The word MENU appears in the menu display 26 2 Rotate the level knob 25 or press level key until the word THEATER appears 3 Press the menu control button 29 or key again The word cD appears Krell KPS 25sc Customizing Configurations continued 4 Rotate the level knob 25 or press level key to select the input for THEATER THROUGHPUT 5 Press the menu control button 29 or key again to display the current theater mode setting The display reads yes when Theater Throughput is active and no when Theater
24. ct disc display 1 Press twice to _ repeat the current track continuously REPEAT 1 appears in the compact disc display Press a third time to cancel this function Krell KPS 25sc Remote Control continued See Figure 5 on page 17 Special Play Functions continued A B Key Use this key to create a loop between two pre determined points within a single track or sequential tracks See How to Create an A B Loop on page 27 Access Key When an exact start position is critical use the direct number access keypad to numerically select a position within a specific track program When you press the access key the compact disc display 1 shows zeros for track number and time within each track Use the direct track access keypad to enter the desired track number at the flashing zero The left zero indicating time within the track flashes Use the keypad again to enter the desired start point on the track Playback begins automatically Prog Program Key Use this key to access the track programming mode Track programming lets you select the tracks you want to hear in the order you want to hear them See How to Write a Program on page 26 Digital Inputs _ CD Key _ Use this key to select the internal compact disc transport AES Key Use this key to select the corresponding rear panel input that is connected to an AES digital source Optics1 and Optics2 Keys Use these keys to select the corresp
25. cted to a engl lt e analog source Tape Key Use this key to select the corresponding rear panel input that is connected to a tape source For instructions on using this feature see Tape Input and Output on page 25 Power Display Mode and Amplifier Functions Drive Off Key Use this key to turn the compact disc transport on and off Power Key Use this key to switch the KPS 25sc unit between the stand by and operational modes Display Mode Key Use this key to cycle the compact disc display 1 through four options The options appear in the compact disc display as they are selected Each Elapsed time of the track currently play ing Each remain Time remaining in the track cur rently playing Total Total time of currently playing track Total remain Total time remaining in the cur rent disc or program Krell KPS 25sc Remote Control continued See Figure 5 on page 17 Power Display Mode and Amplifier Functions continued Note The compact disc transport must be on for the display mode to function Display Dim Key Use this key to turn the compact disc display 1 on and off Krell KPS 25SC Amplifier Power Key Use this key to switch a Krell remote controlled amplifier between the stand by and operational modes Amplifier Display Key Use this key to operate the display of a Krell remote controlled amplifier Note The amplifier power and amplifier display keys operate a Krell
26. e menu control button 29 or key The word PHONO appears 6 Rotate the level knob 25 or press level key _ to select the desired name _ 7 Press the menu control button 29 or key to assign the selected name to the selected input 8 Press the menu control button 29 or key again to exit the menu mode Note 7 The input for compact disc cannot be renamed Krell KPS 25sc Customizing Configurations continued CHANGE AN INPUT S VOLUME TRIM This function lets you add a fixed positive or neg ative volume offset for inputs with significantly dif ferent volume output levels This lets you switch between these inputs without risking damage from excessive changes in volume levels 1 Press the menu control button 29 or menu key The word MENU appears in the menu display 26 2 Rotate the level knob 25 or press level key until the words VOL TRIM appear 3 Press the menu control button 29 or key again The word cb appears 4 Rotate the level knob 25 or press level key to select the input for volume trim 5 Press the menu control button 29 or key again The current volume trim appears 6 Rotate the level knob 25 or press level key to select the desired volume trim 7 Press the menu control button 29 or key to lock in the setting 8 Press the menu control button 29 or key again to exit the menu mode CHANGE THE VOLUME CONTROL SENSITIVITY Volume control sensitivity lets you custo
27. e setting 8 Press the menu control button 29 or key again to exit the menu mode AMPLIFIER CONTROL OPTIONS These options are for users whose KPS 25sc is connected to Krell Full Power Balanced ampli fiers or Master Reference Amplifiers with Krell Link The two amplifier control options are Auto The amplifiers connected through Krell Link automatically power on when you press the KPS 25sc power button or key factory default Off The KPS 25sc will turn on when you press the power button or key but the amplifiers will remain off until powered on separately If you want your amplifiers to power on automatically each time you power on the KPS 25sc keep the factory default If you want to use the KPS 25sc without powering on the amplifiers for example if you frequently make recordings then you may wish to change the amplifier control option from auto to off 29 Customizing Configurations continued To change the amplifier control 1 Press the menu control button 29 or menu key The word MENU appears in the menu dis play 26 2 Rotate the level knob 25 or press level key until the word AMPCTL appears 3 Press the menu control button 29 again AUTO factory default appears in the menu display 4 Rotate the level knob or press the level key until the word OFF appears 5 Press the menu control button 29 or menu key to lock in the setting 6 Press the menu control button 29 or key again
28. efore the product is returned To purchase additional packaging please con tact your authorized Krell dealer distributor or the Krell Service Department for assistance 33 KPS 25sc Krell Playback System with Krell CAST Technolo TEL 203 799 9954 FAX 203 891 2028 9y E MAIL krell krellonline com v 00 1 Krell Industries Inc 45 Connair Road Orange CT 06477 3650 USA WEBSITE http www krellonline com Specifications FREQUENCY RESPONSE 0 1 Hz to 1 MHz 0 dB 3 dB TOTAL HARMONIC DISTORTION THP THD BALANCED UNWEIGHTED 1 kHz lt 0 005 20 kHz lt 0 008 SIGNAL TO NOISE RATIO BALANCED A WEIGHTED 97 dB CHANNEL SEPARATION 97 8 dB 1 kHz DIGITAL TO ANALOG CONVERSION Dual interleaved 20 bit DACs DIGITAL FILTERS 16x oversampling employing dual Motorola 56009 DSPs HDCD employing Pacific Microsonics PMD 100 DIGITAL CLOCKING SYSTEM Master clock synchronizes disc drive laser assembly DSP circuit and decoder circuit MAINS Voltage 100 V 120 V 200 V 220 V 240 V Frequency 50 60 Hz OUTPUT VOLTAGE BALANCED 13 Vrms POWER CONSUMPTION 90W INPUT IMPEDANCE 98 kOhm OUTPUT IMPEDANCE 17 Ohms GAIN a BALANCED 12dB SINGLE ENDED 6 dB DISC DRIVE Top loading mechanism featuring cog free motor assembly and belt driven laser assembly DISC CLAMP Machined electrolyzed aluminum with neodymium magnet DIGITAL INPUTS AND OUTPUTS 1 AES 110 Ohms 3 5 V via XLR connectors
29. end of the MIDI cable to the Krell Link in connector on the back panel of a third component 6 Link additional components if desired The components are now ready for operation with Krell Link KRELL LINK OPERATION 1 When all components are connected as described above place each component in the stand by mode This ensures all com ponents are synchronized when signals from the control component are sent to linked components 2 Switch the control component to the opera tional mode from the components front panel power button or through the power key on the remote control The linked com ponents simultaneously switch to the oper ational mode An individual linked component can be switched between the stand by and operational modes from its front panel Switching a linked compo nent temporarily breaks the chain of linked components To re establish linked operation return all components to the stand by mode Note See Amplifier Control Options on page 29 for information about customizing Krell Link operation Krell KPS 25sc Tape Input and Output The KPS 25sc has a discrete tape input and output The tape output is used to send an input signal from S 1 S 2 S 3 or B 1 to a recording device or processor You can use the tape fea ture in two ways 1 Use the tape input to compare the output signal of a three head analog tape recorder to the output signal of an audio source when making
30. function tabletop remote with direct access capability and a simplified hand held remote provide complete and convenient remote control operation This owner s reference manual contains impor tant information on placement installation and operation of the KPS 25sc Please read this information carefully A thorough understanding of these details will help ensure satisfactory operation and long life for your KPS 25sc and related system components Krell KPS 25sc Definition of Terms Following are the definitions of key terms used in your owner s reference manual CONFIGURATIONS Krell Link A method of synchronizing remote control oper ation for Krell systems that include multiple pre amplifiers amplifiers and associated compo nents When Krell Link in out connections are used the remote capabilities of the linked com ponents are controlled from one component called the control component The linked com ponents respond to stand by and operational mode commands from the control component via MIDI cables Theater Throughput Theater Throughput is a Krell configuration option that allows the signal from a surround preamp processor to pass through a Krell pre amplifier or integrated amplifier with no gain for integrated volume and balance management of Krell home theater systems INPUT AND OUTPUT CONNECTIONS Balanced A symmetrical input or output circuit that has equal impedance from both input
31. he selected tracks and total playing time of the pro grammed sequence appear in the compact disc display 1 in the order in which they are stored Note Tracks consisting of two digits must be keyed within eight seconds of each other 3 Press the play key to begin playback of a programmed sequence 4 Press the stop key and program key again to erase a programmed sequence Krell KPS 25sc Operating Your KPS 25sc conunued HOW TO CREATE AN A B LOOP Press the play button 4 or key to begin play of a track When you hear the part that you want as the beginning of the loop press A B to insert the Start position REPEAT A appears in the compact disc display 1 Press A B again to insert the fin ish position REPEAT A B appears in the compact disc display Playback of the loop automatically begins and continues until the user stops it Press the stop button 3 on the front panel or stop key on the remote control to stop play or press A B again to delete the A B program lt TO PLAY ANOTHER INPUT SOURCE gt 1 After the KPS 25sc is initialized and in the stand by mode use the power button 12 or key to switch the component to the opera tional mode The blue power LED 13 illumi nates 2 Select the analog or digital input source using the front panel button or key 3 Follow the operating directions for the input source Krell KPS 25sc Customizing Configurations This section provides instruc
32. ided Krell compact disc clamp and place your compact disc on the transport 4 Secure the compact disc with the compact disc clamp you must use this clamp since it is part of the disc sensing mechanism 5 Gently pull the acrylic cover forward until you feel the damper mechanism resist slightly The damper mechanism is now engaged and will automatically finish clos ing the cover Do not force the cover to close faster than the damping mechanism allows 6 Begin playback You can use the play button 4 the play key handheld remote control or the direct track access Rpa tabletop remote control Playback begins from the first track Note If you begin playing a compact disc using the direct track access keypad the acrylic cover does not become opaque You must use the play button 4 or key to make the cover opaque 26 7 Use the level knob 25 or keys to adjust the volume to the desired level 8 Press the stop button 3 or key to end com pact disc playback HOW TO WRITE A PROGRAM This short term programming lets you store a maximum of 20 tracks in a program sequence Note Track forward track back repeat and pause func tion normally within a programmed sequence For _ a description of these keys see page 19 1 Press the prog program key on the remote control PROGRAM appears in the compact disc display 1 2 Key in the desired track sequence using the direct track access keypad T
33. ith the push pull pins extended Krell KPS 25sc Fo 7 FIGURE 2 CONNECTING THE KPS 25sc FLEX FOIL CABLE Front lt lt V2 Back E 1 Open flex foil receptacle The open flex foil receptacle sleeve is fully extended as shown If the flex foil receptacle is not open use your fingers to grasp the sleeve and gently slide it toward the back of the KPS 25sc before attempting to insert the flex foil cable E 2 Align the tip of the flex _ foil cable parallel to the open flex foil receptacle and gently feed the flex foil cable into the open flex foil receptacle until the cable touches the rear of the receptacle The closed flex foil receptacle E 3 The flex foil cable should be curved slightly but not crimped Close the flex foil recep tacle by sliding the sleeve toward the front of the KPS 25sc Krell KPS 25sc Installing the Acrylic Cover See Figure 1 on page 7 and Figure 2 on page 8 The KPS 25sc is equipped with an acrylic cover that protects the integrity of compact disc data The user can customize the cover s operation and closing speed See Customizing Configu rations on page 27 IMPORTANT USER PRECAUTION Please read the following USER PRECAU TION before attempting to install the acrylic cover The KPS 25sc acrylic cover is mechanically damped to ensure smooth operation while clos ing If you force the cover to close you will dam age the cover and the da
34. ly extended only during cover instal lation and must be closed when Ci eneg the acrylic cover Do not try to close the acrylic cover at this time Connect the flex foil cable first You can customize the acrylic cover to be clear or opaque and to close at varying speeds See Adjusting the Cover Closing Speed on page 10 and Customizing Configurations on page 27 Installing the Acrylic Cover continued CONNECTING THE FLEX FOIL CABLE a To connect the flex foil cable follow the easy steps described below and illustrated in Figure 2 on page 8 IMPORTANT 7 Do not crimp the flex foil cable either manually or with pliers or other tools Crimping will dam age the flex foil cable and make it inoperable Use care when inserting the flex foil cable Its edges can be sharp 1 Locate the flex foil cable D attached to the acrylic cover and the flex foil receptacle E on top of the KPS 25sc Make sure the flex foil receptacle is open see detail E 1 2 Using your fingers carefully align the flex foil cable D so that its tip is parallel to the open flex foil receptacle Again using your fingers gently feed the flex foil cable D into the flex foil receptacle until the cable touches the rear of the receptacle see detail E 2 10 3 Close the flex foil receptacle by sliding the sleeve toward the front of the KPS 25sc see detail E 3 There will be an audible click when the flex foil cable locks
35. ly impossible to convert CAST input or output connections for balanced or single ended voltage oper ation THERE ARE NO USER SERVICEABLE PARTS INSIDE ANY KRELL PRODUCT Please contact your authorized Krell dealer distributor or Krell if you have any questions not addressed in _this reference manual OCD equipped This product is manufactured in the United States of America Krell is a registered trademark of Krell Industries Inc and is restricted for use by Krell _ Industries Inc its subsidiaries and authorized agents Krell Playback System is a trademark of Krell Industries Inc Krell CAST is a patent pending of Krell Industries Inc Krell Link is a trademark of Krell Industries Inc ECD HDCD High Definition Compatible Digitale and Pacific Microsonics are either registered trademarks or trademarks of Pacific Microsonics Inc in the United States and or other countries HDCD system manufactured under license from Pacific Microsonics Inc This product is covered by one or more of the following In the USA 5 479 168 5 638 074 5 640 161 5 808 574 5 838 274 5 854 600 5 864 311 5 872 531 and in Australia 669114 Other patents pending TosLink is a trademark of Toshiba Corporation All other trademarks and tradenames are registered to their respective companies 2000 by Krell Industries Inc All rights reserved P N 303963 Contents Page INTRODUCTION 1 DEFINITION OF TERMS 1 REVOLUTIONARY
36. mize the speed at which the volume level control knob and keys adjust volume levels 1 Press menu control button 29 or menu key The word MENU appears in the menu display 26 Krell KPS 25sc 2 Rotate the level knob 25 or press level key until the words VOL SPEED appear 3 Press the menu control button 29 or key again The current volume speed is displayed 4 Rotate the level knob 25 or press level key to select the desired volume speed 5 Press the menu control button 29 or key to lock in the setting 6 Press the menu control button 29 or key again to exit the menu mode RETURN ALL SETTINGS TO FACTORY DEFAULTS 1 Press the menu control button 29 or menu key The word MENU appears in the menu dis play 26 2 Rotate the level knob 25 or press level key until the words ALL CLEAR appear 3 Press the menu control button 29 or key again The word walt appears Please wait 8 10 seconds for the KPS 25sc to reset 4 Press the menu control button 29 or key again to exit the menu mode 31 Warranty This Krell product has a limited warranty of five years for parts and labor on circuitry and three years for parts and labor on all mechanical components Should this product fail to perform at any time during the warranty Krell will repair it at no cost to the owner except as set forth in this warranty The warranty does not apply to damage caused by acts of God or nature
37. mping assembly During operation please do not force the cover to close faster than the damping mechanism allows o ATTACHING THE ACRYLIC COVER To attach the acrylic cover follow the steps described below and further illustrated in Figure 1 on page 7 IMPORTANT E Attach the acrylic cover before connecting the flex foil cable 1 Carefully remove the acrylic cover from the velvet pouch and place the cover on a soft surface 2 Locate the two push pull pins A just above the KPS 25sc back panel These pins are shipped in the fully closed position see detail A1 Pull the pins out until they are fully extended as shown in detail A 2 Krell KPS 25sc 3 Locate the pins B at the base of the acrylic cover and the notches C on top of the KPS 25sc above the push pull pins A 4 With the acrylic cover perpendicular to the KPS 25sc align the acrylic cover pins B with the notches C in the top of the KPS 25sc 5 Gently lower the acrylic cover into the notches C positioning the acrylic cover pins B in the notches C in the top of the KPS 25sc IMPORTANT Make sure that the flex foil cable D attached to the cover is not pinched or crimped as you position and secure the acrylic cover 6 Push the push pull pins A back in to secure the cover See detail A 1 for correct pin position IMPORTANT The KPS 25sc is shipped from the Baba with the cover push pull pins fully closed Push pull pins are ful
38. nd amplifier and between all other components Separate AC wires from audio cables to prevent hum and other unwanted noises from ia intro duced into the system 3 Connect the Krell CAST cables from the left and right Krell CAST 4 pin outputs 42 on the KPS 25sc back panel to your CAST enabled preamplifier or amplifier For balanced or single ended operation connect the interconnect cables from either the left and right fixed balanced 38 vari able balanced 39 fixed single ended 40 or variable single ended 41 outputs on the KPS 25sc back panel to the balanced or single ended inputs on your preamplifier or amplifier The remaining outputs can be connected to another preamplifier or ampli fier in a different system 7 IMPORTANT Use variable output terminals when the KPS 25sc is connected directly to a Krell stereo power ampli fier or to a pair of Krell monaural power amplifiers that do not have gain control Using fixed outputs can damage power amplifiers and loudspeakers Quick Start continued INPUT AND OUTPUT CONNECTIONS continued 4 Connect the cables from your source equip ment to the appropriate balanced 31 tape 32 or single ended 34 35 36 analog inputs on the KPS 25sc back panel 5 Connect the cables from your digital audio or video source to the optics input 46 or coaxial digital input 47 on the KPS 25sc back panel 6 Connect the cables from the optics output 43 o
39. nism is now engaged and will automatically finish closing the cover Do not force the cover to close faster than the damping mechanism allows 6 Press the play button 4 or key to begin com pact disc playback playback will not begin unless cover is closed The acrylic cover will also tum opaque to protect compact disc data 7 Use the level knob 25 or keys to adjust the volume to the desired level 8 Press the stop button 3 or i to end com pact disc playback TO PLAY ANOTHER INPUT SOURCE 1 After the KPS 25sc is initialized and in the stand by mode use the power button 12 or key to switch the KPS 25sc to the operational mode The blue power LED 13 illuminates 2 Select the digital or analog input source using the front panel button 14 19 or key The red LED above the source illuminates and the source name appears in the menu display 26 3 Follow the input source operating directions Krell KPS 25sc _ FIGURE 1 ATTACHING THE KPS 25sc ACRYLIC COVER _ A Push pull pins B Acrylic cover pins C Notches D Flex foil cable E Flex foil receptacle A1 A2 Push pull pins fully closed Push pull pins fully extended Pins are shipped fully closed and Pin position is exaggerated for illustration purposes must be returned to this position for Pins are fully extended only during acrylic the acrylic cover to operate properly cover installation Do not try to close the acrylic cover w
40. o ensure proper volume level control Using fixed outputs could damage power amplifiers and loudspeakers Fixed and Variable Single Ended Outputs 40 Fixed Left and Right The KPS 25sc is equipped with one pair of fixed level single ended oun with RCA connec tors 41 Variable Left and Right The KPS 25sc is equipped with one set of vari able level single ended outputs with RCA con nectors Krell CAST Outputs 42 Krell CAST Outputs Left and Right The KPS 25sc is equipped with one set of vari able level outputs with 4 pin bayonet connec tors for use with Krell CAST equipped Full Power Balanced 200c 300c and 600c Stereo Amplifiers and 250Mc 350Mc and 650Mc Monaural Amplifiers or with the Krell Master Reference Amplifiers Back Panel continued See Figure 4 on page 14 Digital Inputs and Outputs 43 Optics1 and Optics2 Outputs The KPS 25sc is equipped with two EIAJ fiber optic digital outputs with TosLink connectors 44 Coax and Coax2 Outputs The KPS 25sc is equipped with two S PDIF coaxial digital outputs with RCA connectors 45 AES Output and Input The KPS 25sc is equipped with one AES digital output and input with XLR connectors 46 Optics1 and Optics2 Inputs The KPS 25sc is equipped with two ElAu fiber optic digital inputs with TosLink connectors 47 Coax1 and Coax2 Inputs The KPS 25sc is equipped with two S PDIF coaxial digital inputs with RCA connectors Power 48 Back Panel Power Swi
41. of clearance on each side to provide for ade quate ventilation and at least 20 inches 50 cm of clearance above the component to allow for the operation of the acrylic cover Installations inside cabinetry may need extra ventilation Note pi The KPS 25sc incorporates an advanced sus pension system and does not require addition al mass coupling or isolation You may experi ment with feet or cones as long as they are not permanently affixed to the unit Any unautho rized modifications to the unit or electronics will _ void the warranty IMPORTANT Do not attach enhancement accessories such as rings mats or dampers to individual com pact discs These accessories may interfere with the compact disc transport resulting in erratic pla yback and or poor sound AC POWER GUIDELINES The KPS 25sc has superb regulation and does not require a dedicated AC circuit Avoid connec tions through extension cords or multiple AC adapters High quality 15 amp grounded AC strips are acceptable High quality AC line con ditioners or filters can be used if they are grounded and meet or exceed the unit s power supply rating of 100 VA Krell KPS 25sc Quick Start To access the full array of available features for the KPS 25sc please read the entire KPS 25sc owner s reference manual procedures in this Quick Start section will allow you to set up your KPS 25sc system quickly and enjoy its basic features before you read
42. onding rear panel input that is connected to an EIAd fiber optic digital source Krell KPS 25sc Coax1 and Coax2 Keys Use these keys to select the corresponding rear panel input that is connected to a S PDIF coax ial source Track Functions Pause Key Use this key to enpa suspend playback of the current compact disc track To resume play ing the track at the point pause was engaged press the play key Play Key Use this key to start playback from the begin ning of the compact disc Stop Key Use this key to stop compact disc playback Index Back and Forward Keys Use the index back key to select the index num ber prior to the current index number within a specific track Use the index forward key to select the index number following the current index number within a specific track Note These keys function only if the compact disc has been recorded with separate indexing If a compact disc does not have indexing the dis play defaults to the current track number when the index keys are pressed Track Back and Forward Keys Use the track back key to select and begin play _ ing the track that precedes the current track use the track forward key to select and play the track that follows the current track Search Back and Forward Keys Press and hold these keys to scroll backward or _ forward through the current track Remote Control continued See Figure 5 on page 17 Volume Adjustment
43. our System continued INPUT AND OUTPUT CONNECTIONS continued _ the AC power into the IEC connector 50 on the back panel then plug and AC power cord into the wall socket IMPORTANT When switching between active sources always lower the volume to off or mute the out put This ensures that the next source played does not damage your system with a high out put transient POWER ON Power the KPS 25sc on using the back panel power switch 48 The word KRELL momentarily appears in the front panel menu display 26 This indicates that the KPS 25sc has initialized The KPS 25sc is in the stand by mode The red stand by LED 12 illuminates 7 Connect the KPS 25sc to AC power plug Krell KPS 25sc FACTORY DEFAULT SETTINGS Krell ships the KPS 25sc with the following out puts operational Variable outputs RCA single ended and XLR balanced Fixed outputs RCA single ended and XLR balanced Variable outputs Krell CAST 4 pin bayonet IMPORTANT When the KPS 25sc is connected directly to a stereo power amplifier or a pair of monaural power amplifiers use the variable output termi nals to ensure proper level control Using the fixed outputs in this configuration could damage power amplifiers and loudspeakers The cover operation mode is shipped set for auto The cover must be down for compact disc playback to begin The shutter operation mode is shipped set for auto The cover automatically becomes opaq
44. problem before you return the component for repair To expedite service you may wish to complete and e mail the Service Request Form in the Service Section of our website at http www krellonline com To contact the Krell Service Department TEL 203 799 9954 Monday Friday 9 00 AM to 5 00 PM EST FAX 203 799 9796 E MAIL service krellonline com WEBSITE http Avww krellonline com KPS 25sc PRODUCT SERIAL NUMBER Krell KPS 25sc To return a product to Krell please follow this procedure so that we may serve you better 1 Obtain a Return Authorization Number R A number and shipping address from the Krell Service Department 2 Insure and accept all liability for loss or damage to the product during shipment to the Krell factory and ensure all freight ship ping charges are prepaid The product may also be hand delivered if arrangements with the Service Department have been made in advance Proof of purchase will be required for warranty validation at the time of hand delivery IMPORTANT Use the original packaging to ensure the safe transit of the product to the factory dealer or distributor Krell may at its discretion return a product in new packaging and bill the owner for such packaging if the product received by Krell was boxed in nonstandard packaging or if the original packaging was so damaged that it was unusable If Krell determines that new packag ing is required the owner will be notified b
45. r coaxial digital output 44 on the KPS 25sc back panel to send signals to a digital recording device external digital ana log processor or video source 7 Connect the KPS 25sc to AC power plug the AC power into the IEC connector 50 on the back panel then plug and AC power cord into the wall socket IMPORTANT When switching between active sources always lower the volume to off or mute the output This ensures that the next source played does not damage your system with a high output transient POWER ON Power the KPS 25sc on using the back panel power switch 48 The word KRELL momentarily appears in the menu display 26 This shows the KPS 25sc is initialized and ready for operation The KPS 25sc is now in the stand by mode The red stand by LED 12 illuminates TO PLAY A COMPACT DISC 1 After the KPS 25sc is initialized and in the stand by mode use the power button 12 or key to switch the component to the opera _ tional mode The blue power LED 13 illumi nates The compact disc transport is active 2 Gently raise the acrylic cover until it is 5 upright approx 90 angle 3 Remove the Krell compact disc clamp and place your compact disc on the transport 4 Secure the compact disc with the compact disc clamp you must use this clamp since it is part of the disc sensing mechanism 5 Gently pull the acrylic cover forward until you feel the damper mechanism resist slightly The damper mecha
46. sumption status that keeps the audio and regulator circuits at idle Krell recom mends leaving the component in the stand by mode when it is not playing music TECHNOLOGY Krell Current Mode A proprietary Krell circuit topology in which the audio gain stages of a component operate in the current rather than voltage domain This unique technology provides the component with exceptional speed and a wide bandwidth Krell HEAT The Krell term HEAT or High End Audio Theater is a design application incorporated into Krell components to enhance multi channel home entertainment systems A Krell HEAT sys tem is an integrated home theater system con sisting of a state of the art Krell pre amp processor and matching amplifiers that repro duce two channel and multi channel sources with audiophile sound quality placing the audi ence in the middle of a lifelike environment Krell KPS 25sc Revolutionary Krell CAST Technology Current Audio Signal Transmission termed CAST is a revolutionary method of connecting analog audio components for unparalleled sonic performance Innovative engineering combines the new Krell CAST circuitry with existing Krell Current Mode technology to cre ate entire CAST systems that reproduce music with incredible range tonality and precision Voltage Signal Transmission and the Traditional Audio System Traditionally signal is transmitted in the voltage domain between two components In an audio
47. tch Use the back panel power switch for the initial KPS 25sc power on For more information see Connecting the KPS 25sc to Your System on page 22 o 49 Line Fuse The 50 60 Hz line fuse protects the KPS 25sc against short circuits from the external AC power Note Replace fuses only with the fuse value speci _ fied on the back panel 50 IEC Connector The connector is for use with the provided IEC standard 15 amp AC power cord Back Panel Remote Connections 51 Krell Link Out 52 Krell Link In The KPS 25sc is equipped with a Krell Link communications output and input data port Krell Link allows synchronized remote power on and off of other components with Krell Link such as Full Power Balanced amplifiers or Master Reference Amplifiers 53 RC 5 The KPS 25sc is equipped with an RC 5 input that makes custom installation easy and secure by accepting baseband RC 5 input commands from hardwired remote controllers 54 12 VDC Out The KPS 25sc is equipped with an output that sends 12 VDC power on off 12 V trigger sig nals to other Krell components and other devices that incorporate a 12 V trigger This allows you to turn other components on or off or to and from stand by from the KPS 25sc When the KPS 25sc is switched between the stand by and operational modes it sends a signal from the 12 VDC Out that will switch other components allowing whole or parts of systems to be easily coordinated Notes The 12 VDC outp
48. the entire manual The following paragraphs outline quick start procedures For additional informa tion see Connecting the KPS 25sec to Your System on page 22 FACTORY DEFAULT SETTINGS The KPS 25sc is shipped with these default set tings The cover operation mode is set for auto The cover must be down for a disc playback to begin The shutter operation mode is shipped set for auto The cover automatically becomes opaque when you play a compact disc and becomes clear when playback stops All variable and fixed outputs are active IMPORTANT You must install the acrylic cover before you use your KPS 25sc See Installing the meee Cover on n page 9 INPUT AND OUTPUT o CONNECTIONS See Figure 3 on page 11 and Figure 4 on page 14 Numbers in parentheses refer to figure labels IMPORTANT Connecting non CAST components to CAST inputs or outputs can damage your equipment and void your warranty Krell KPS 25sc The abbreviated Do not attempt to change CAST cable termina tions or CAST inputs or outputs to RCA or XLR connectors It is electrically impossible to con vert CAST input or output connections for bal anced or single ended voltage operation Please read the Warranty on page 32 to understand the warranty limitations of the KPS 25sc 1 Make sure all power sources and compo nents are off before connecting inputs and outputs 2 Neatly organize wiring between the KPS 25sc and the preamplifier a
49. tions for customiz ing options including cover and shutter opera tion Theater Throughput mode setting amplifi er control options adjusting menu brightness assigning custom names to inputs changing an inputs volume trim changing volume control sensitivity or returning all FNG to the factory defaults CHANGE THE COVER OPERATION MODE The cover operation mode lets you choose how cover position affects compact disc playback The three cover operation modes are Off The cover position does not affect mrp ace disc playback Auto The cover must be down for compact disc playback to begin After the cover is down press the play button 4 or key to begin pay back factory default Auto play Playback begins automatically as the cover is closed To change the cover operation mode 1 Press the menu control button 29 or menu key The word MENU DRA in the menu display 26 2 Rotate the level knob 25 or press level key until the word COVER appears 3 Press the menu control button 29 or key again The current cover operation mode appears in the menu display 4 Rotate the level knob 25 or press level key to select the desired cover operation mode 27 Customizing Configurations continued CHANGE THE COVER MODE ponitinded 5 Press the menu control button 29 or key to lock in the setting 6 Press the menu control button 29 or key again to exit the menu mode IMPORTANT USER PRECAUTI
50. troduced into the system 22 3 Connect the Krell CAST cables from the left and right Krell CAST 4 pin outputs 42 on the KPS 25sc back panel to your CAST enabled preamplifier or amplifier For balanced or single ended operation connect the interconnect cables from either the left and right fixed balanced 38 vari able balanced 39 fixed single ended 40 or variable single ended 41 outputs on the KPS 25sc back panel to the balanced or single ended inputs on your preamplifier or amplifier The remaining outputs can be connected to another preamplifier or ampli fier in a different system IMPORTANT Use vanable output terminals when the KPS 25sc is connected directly to a Krell stereo power ampli fier or to a pair of Krell monaural power amplifiers that do not have gain control Using fixed outputs can damage power amplifiers and loudspeakers 4 Connect the cables from your source equip ment to the appropriate balanced 31 tape 82 or single ended 34 35 36 analog inputs on the KPS 25sc back panel 5 Connect the cables from your digital audio or video source to the optics input 46 or coaxial digital input 47 on the KPS 25sc back panel 6 Connect the cables from your optics output 43 or coaxial digital output 44 on the KPS 25sc back panel to send signals to a digital recording device external digital ana log processor or video source Krell KPS 25sc Connecting the KPS 25sc to Y
51. ttery receptacle 3 Replace the backplate The remote control is ready for operation Replace batteries when remote control function becomes intermittent Remove batteries if the remote control is not used for a long period of time Battery leakage can damage the remote control 18 TABLETOP REMOTE CONTROL The KPS 25sc tabletop remote control with direct access capability provides full function remote control operation Tabletop remote con trol keys are labeled by section rather than numbered individually Cross references to front panel buttons are in parentheses Direct Track Access Keypad Use the direct track access keypad to select a compact disc track With the direct number access function the selected track begins play immediately after you select it If the track you want to play is numbered 1 9 press the key that corresponds to the track Use the 10 key to access tracks numbered 10 or higher Example To access track 8 press the number 8 key once To access track 10 press the 10 key once and the 0 key once To access track 24 press the 10 key twice and the 4 key once Tracks consisting of two digits must be keyed within eight seconds of each other Clear Use this key to delete the last entry selected in a programmed sequence Special Play Functions Repeat Key Press this key once to repeat the entire disc or track program continuously REPEAT ALL appears _ in the compa
52. tton Press and hold this button to scroll backward through the current track 8 Search Forward Button Press and hold this button to scroll forward through the current track 9 Track Back Button Use this button to select and begin playing the track that precedes the current track 10 Track Forward Button Use this button to select and begin playing the track that follows the current track 11 Drive Off Button Use this button to turn the compact disc trans port on and off 12 Power Button and Stand by LED Use this button to switch the KPS 25sc between the stand by and the operational modes The red power stand by LED illuminates when the KPS 25sc is in the stand by mode 13 Power LED The blue power LED illuminates when the KPS 25sc is in the operational mode The blue power LED also flashes when any remote con trol key is pressed Krell KPS 25sc Front Panel continued See Figure 3 on page 11 Digital Inputs and LEDs The KPS 25sc is equipped with the following digital inputs The red LED above each button illuminates when that input is selected 14 CD Button Use this button to select the internal compact disc transport 15 AES Button Use this button to select the corresponding rear panel input that is connected to an AES digital source 16 Optics Button 17 Optics2 Button Use these buttons to select the corresponding rear panel input that is connected to an EIAJ fiber optic digital source
53. ue when you play a compact disc and becomes clear when playback stops 23 Krell Link Connections and Operation Krell Link in out connectors on the KPS 25sc back panel allow you to synchronize remote control operation for systems that include multi ple preamplifiers amplifiers and associated components When the Krell Link in out con nectors are used the remote capabilities of the linked components are controlled from one component called the control component The linked components respond to stand by and operational mode commands from the control component via MIDI cables Note Krell Link uses standard five pin MIDI commu nication cables sometimes called MIDI Plus cables MIDI cables can be purchased from your authorized distributor or dealer or from an audio supply store CONNECTING COMPONENTS THROUGH KRELL LINK 1 Turn all components off This ensures com ponents are synchronized when the MIDI cables are connected 2 Select the control component It must be in plain view for proper remote control opera tion 3 Connect one end of the MIDI cable to the Krell Link out connector on the control com ponent back panel 4 Connect the other end of the MIDI cable to the Krell Link in connector on the back panel of the next component 24 5 To link another component connect anoth er MIDI cable to the Krell Link out connector on the back panel of the second compo nent Connect the remaining
54. ut power is limited to 30 ma Consult the owner s reference of the components used in a custom installation to take full advan tage of the remote capability of the KPS 25sc Krell KPS 25sc FIGURE 5 THE KPS 25sc TABLETOP AND HANDHELD REMOTE CONTROLS Direct Track Special Play Digital Track Access Keypad Functions Inputs Functions S ae seins PEN IAA A a 0 as RIP RRS Power Display Mode Analog Volume Adjustment and Menu Functions and Amplifier Functions Inputs Tabletop Remote Control Handheld Remote Control Remote Control Description See Figure 5 on page 17 The KPS 25sc is equipped with two remote controls The tabletop remote control provides complete compact disc transport functions as well as Krell preamplifier and power amplifier remote control functions The handheld remote control contains power on off pause play stop volume level control and track back and track forward keys BATTERY INSTALLATION AND REMOVAL The KPS 25sc Tabletop Remote Control uses four AAA size 1 5 Volt batteries The KPS 25sc Handheld Remote Control uses two AAA size 1 5 Volt batteries Batteries are included with the shipment These directions apply to both the Tabletop Remote Control and the Handheld Remote Control 3 1 Remove the backplate using the supplied T 10 Torx wrench 2 Install the batteries following the battery position diagram on the plastic ba
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