Krell Industries 28c User's Manual
Contents
1. 50W DIMENSIONS TRANSPORT 19w x 4 5h x 14 5d in Monolithic assembly featuring full size disc clamp DAC Dual 24 bit DACs per channel ANALOG AUDIO OUTPUT 1 pair balanced via XLR connectors 1 pair single ended via RCA connectors 1 pair Krell CAST via 4 pin connectors 48w x 11 5h x 36 5d cm WEIGHT Shipping 23 Ib 10 5 kg Unit only 19 Ib 8 6 kg All operational features functions specifications and policies are subject to change without notification2. from hardwired remote controls Power 20 IEC Power Connector The IEC connector is for use with the provided IEC standard 15 amp AC power cord 21 Line Fuse The 50 60 Hz line fuse protects the KPS 28c against short circuits from the external AC power NOTE Replace fuses only with the fuse value specified on the back panel Krell Playback System 28c FIGURE 3 THE KPS 28c REMOTE CONTROL r DISPLAY 22 PWR OPEN MODE DIM 25 o ae ee ae 23 24 32 33 26 34 27 PAUSE STOP PLAY es a Ge ae ee 29 28 CO TRACK CO SEARCH K D lt b gt Ge Ge Cae 30 31 L lt S33 CS LLL KPS 28c Compact Disc Compact Disc Special Play Functions Transport Functions Functions 32 Rep Repeat Key 22 Pwr Power Key 26 Direct Track Access 33 A B Key 23 Open Key Keypad 34 Prog Program Key Compact Disc 27 Pause Key Display Functions 28 Stop Key 24 Display Mode Key 29 Play Key 25 Display Dim Key 30 Track Forward and Back Keys 31 Search Forward and Back Keys Note The level and mute keys are not functional on the KPS 28c Krell Playback System aa 9 Remote Control Description See Figure 3 on page 9 BATTERY INSTALLATION AND REMOVAL The KPS 28c remote control uses two AAA size 1 5 Volt batteries Batteries are included with the shipment To install the batteries 1 Remove the backplate using the supplied T 10 Torx wrench 2 Install the batteries following the battery position diagram on the p
3. track program continuously REPEAT appears in the compact disc display 7 Press twice to repeat the current track continuously REPEAT SINGLE appears in the compact disc display Press a third time to cancel this function 33 A B Key Use this key to create a playback loop between two predetermined points within a single track or sequential tracks See How to Create an A B Loop on page 14 34 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 13 11 Connecting the KPS 28c to Your System See Figure 2 on page 7 INPUT AND OUTPUT CONNECTIONS Analog Output Connections The KPS 28c is equipped with three analog out put connections CAST balanced and single ended Krell recommends using its proprietary Krell CAST system for unparalleled sonic per formance between the KPS 28c and other Krell CAST equipped components The KPS 28c also offers conventional balanced operation The circuitry and connections associa ted with balanced operation not only can minimize sonic loss but also are immune to induced noise especially for installations using long cables Balanced connections have 6 dB more gain than single ended connections Please keep this speci fication in mind when level matching is critical The XLR pin configuration is described below Pin 1 Ground Pi
4. 0 Pause Button and LED 4 Power Button 11 Stop Button 5 Power LED 12 Play Button Front Panel Description See Figure 1 on page 5 The front panel of the KPS 28c accesses power on and off and compact disc functions The compact disc display shows compact disc play back and programming status Front panel fea tures and their descriptions follow Compact Disc Transport Functions 1 Compact Disc Transport The compact disc transport holds the compact disc 2 Open Close Button Use this button to open and close the compact disc transport Power 3 Stand by LED The red stand by LED illuminates when the KPS 28c is in the stand by mode 4 Power Button Use this button to switch the KPS 28c between the stand by and the operational modes 5 Power LED The blue power LED illuminates when the KPS 28c is in the operational mode and flashes when remote control signals are received _ Compact Disc Functions 6 HDCD LED The red HDCD LED illuminates when a high definition compatible digital disc is playing indi cating that HDCD decoding is functioning 7 Compact Disc Display The compact disc display shows sampad disc playback and programming status 8 Track Forward Button Use this button to select and begin playing the track that follows the current track 9 Track Back Button Use this button to select and begin playing the track that precedes the current track 10 Pause Button and LED Use this button to tempo
5. LNs LS 3 SILL oe THE LEADER IN AUDIO ENGINEERING Krell Playback System with Krell CAST Technology Instructions for Use Owner s Reference KPS 28c o o Krell Industries Inc Sae rrea lee with Krell CAST ge a wane FAX 203 891 2028 i E MAIL krell krellonline com WEBSITE http www krellonline com This product complies with the EMC directive 89 336 EEC and the low voltage directive 73 23 EEC WARNINGS The KPS 28c must be placed on a firm level surface where it is not exposed to dripping or splashing The ventilation grids on the top of the KPS 28c must be unobstructed at all times during operation Do not place flammable material above or beneath the component Do not remove or bypass the ground pin on the end of the AC cord This could cause radio frequency inter ference RFI to be introduced into your playback system Operate the KPS 28c only with the power cord supplied Turn off all systems power before connecting the KPS 28c to any component Make sure all cable termina tions are of the highest quality free from frayed ends short circuits or cold solder joints 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
6. artment 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 before the product is returned To purchase additional packaging please con tact your authorized Krell dealer distributor or the Krell Service Department for assistance Krell Playback System 28c Krell Industries Inc 45 Connair Road Orange CT 06477 3650 USA KPS 28c Krell Playback System with Krell CAST Technology TEL 203 799 9954 FAX 203 891 2028 E MAIL krell krellonline com WEBSITE http www krellonline com v 00 0 Specifications DIGITAL AUDIO OUTPUTS 1 EIAJ optical FREQUENCY RESPONSE via a Toslink connector 20 Hz 20 kHz 0 0 0 6 dB SIGNAL TO NOISE RATIO 1 S PDIF coaxial via an RCA connector ot pein A USLE REMOTE CONTROL 106 dB l 1 wireless infrared NIC DISTOR TOTAS HARMONIG oe nore GE 12 VDC input 12 Volt trigger 20 Hz 16 kHz 86 dB via a 3 5 mm mini connector 20 kHz 81 dB RC 5 input via a POWER CONSUMPTION Ea Peer CONNGELOT Idle
7. ates and you hear a click The KPS 28c is ready to play music Krell Playback System 28c Operating Your KPS 28c This section provides more information about operating the KPS 28c TO PLAY A COMPACT DISC 1 Use the open close button 2 or open key 23 to open the compact disc transport 1 2 Place a compact disc on the transport 3 Use the open close button 2 or open key 23 to close the compact disc transport 1 Playback automatically begins from the first track Adjust system volume through your preamplifier or amplifier 4 Press the stop button 11 or key 28 to end compact disc playback Note You can also begin track playback by pressing the play button 12 or key 29 or select a track using the direct track access keypad 26 the track forward and back buttons 8 9 or keys 30 or the search forward and back keys 31 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 remote control keys see Remote Control Description pages 10 11 1 Press the prog program key 84 on the remote control PROGRAM appears in the compact disc display 7 13 Operating the KPS 28C continued 2 Key in the desired track sequence using the direct track access keypad 26 The select ed tracks the number of trac
8. cifications on the back cover The KPS 28c requires at least two inches 5 cm of clearance on each side and at least two inch es 5 cm of clearance above the component to provide adequate ventilation Installations inside cabinetry may need extra ventilation Note The KPS 28c 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 chassis Any unau thorized modifications to the electronics or chassis 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 playback and or poor sound AC POWER GUIDELINES The KPS 28c 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 condi tioners or filters can be used if they are ground ed and meet or exceed the unit s power supply rating of 100 VA Quick Start The abbreviated procedures in this Quick Start section enable you to connect and operate your KPS 28c system quickly to enjoy its basic fea tures To access the full array of available fea tures for the KPS 28c please read the entire owner s reference manual N
9. descriptions follow Analog Outputs 13 Left and Right CAST Outputs The KPS 28c is equipped with one pair of analog outputs with 4 pin connectors for use with Krell CAST equipped preamplifiers 14 Left and Right Balanced Outputs The KPS 28c is equipped with one pair of bal anced analog outputs with XLR connectors 15 Left and Right Single ended Outputs The KPS 28c is equipped with one pair of sin gle ended analog outputs with RCA connectors Digital Outputs 16 Optics Output The KPS 28c is equipped with an EIAd fiber optic output with a TosLink connector 17 Coaxial Output The KPS 28c is equipped with an S PDIF coax ial audio output with an RCA connector Back Panel Remote Connections 18 12 VDC In The KPS 28c is equipped with an input that receives 12 VDC power on off 12 Volt trigger signals from other Krell components and from other devices that incorporate a 12 Volt trigger This allows you to activate the KPS 28c through another Krell component and through other components in a custom installation to easily coordinate whole systems or portions of sys tems Notes The 12 VDC input power is limited to 30 ma Consult the owner s reference manual of the components used in a custom installation to take full advantage of the remote capabilities of the KPS 28c 19 RC 5 In The KPS 28c is equipped with an RC 5 input that makes custom installation easy and secure by accepting baseband RC 5 input commands
10. ed in your owner s reference manual CONNECTIONS Bridging An internal connection option that links two amplifier channels to operate as one combined amplifier channel greatly increasing the channel s power output Krell Multi Amp Throughput MAT A propri etary internal connection option that sends the same music signal to all amplifier channels using one balanced or single ended connec tion MAT reduces installation complexity and cabling requirements in systems containing multiple amplifiers INPUTS AND OUTPUTS Balanced A symmetrical input circuit that has equal impedance from both input terminals with respect to a common reference point Balanced connections have 6 dB more gain than single ended connections Single ended An input circuit in which one side of a transmission line circuit is ungrounded single ended connections have 6 dB less gain than balanced connections OPERATION Off When the power button on the front panel is pressed and the biue power LED turns off the 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 opera tional mode and ready to play music 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 circuitr
11. ignal transmis 2 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 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 manufactured 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 dist
12. 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 HDCD High Definition Compatible Digital 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 304374 Contents Krell Playback System 28c INTRODUCTION DEFINITION OF TERMS REVOLUTIONARY KRELL CAST TECHNOLOGY UNPACKING PLACEMENT AC Power Guidelines QUICK START Input and Output Connections Power On To Play a Compact Disc FRONT PANEL DESCRIPTION BACK PANEL DESCRIPTION REMOTE CONTROL DESCRIPTION Battery Installation and Removal CONNECTING THE KPS 28c TO YOUR SYSTEM Analog Output Connections Digital Output Connections Connecting the KPS 28c Power On OPERATING YOUR KPS 28c To Play a Compact Disc How to Wri
13. k access function the selected track begins playback 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 O 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 27 Pause Key Use this key to temporarily suspend playback of the current compact disc track To resume play ing the track at the point pause was engaged press pause again or press the play button 12 or key 29 The red pause LED 10 illuminates when pause is engaged 28 Stop Key Use this key to end compact disc playback Krell Playback System 28c Remote Control continued See Figure 3 on page 9 29 Play Key Use this key to start playback from the begin ning of the compact disc to resume playback after pause or to start playback of a pro grammed sequence 30 Track Forward and Back Keys Use these keys to select and begin playing the track that follows or precedes the current track 31 Search Forward and Back Keys Press and hold these keys to scroll forward or backward through the current track Krell Playback System 28c Special Play Functions 32 Rep Repeat Key Press this key once to repeat the entire disc or
14. ks selected and the total playing time of the programmed track sequence appear in the compact disc display in the order in which the tracks are stored Note Tracks consisting of two digits must be keyed within eight seconds of each other 3 Press the play button 12 or key 29 to begin playback of a programmed sequence 4 Press the stop button 11 or key 28 once to stop playback To Clear a Programmed Sequence 1 Press the stop key 28 twice to clear the entire program 2 Press the stop key then the cir key on the direct track access keypad 26 to remove selected tracks from the programmed se quence The track that was programmed last is removed first Note If you press the power button 4 or key 22 and place the KPS 28c in the stand by mode the programmed sequence is automatically erased HOW TO CREATE AN A B LOOP 1 Begin playing a track by pressing the play button 12 or key 29 or select a track using the direct track access keypad 26 the track forward and the back keys 30 or the search forward and back keys 31 2 When you hear the selection that you want as the beginning of the loop press the A B key 83 to insert the start position The phrase REPEAT A B flashes in the compact disc display 7 3 When you hear the selection you want as the end of the loop press the A B key again to insert the finish position REPEAT A B stops flashing 4 Playback of the loop begins automatica
15. lastic battery recep tacle 3 Replace and secure the backplate The remote control is ready for operation Replace the batteries when the remote control functions intermittently Remove the batteries if the remote control is not used for a long period of time Battery leakage can damage the remote control REMOTE CONTROL FUNCTIONS The KPS 28c remote control provides power display programming and compact disc func tions Remote control keys and their descrip tions follow Note Access the level and mute functions through your preamplifier or amplifier The level and _ mute keys are not functional on the KPS 28c Compact Disc Transport Functions 22 Pwr Power Key Use this key to switch the KPS 28c between the stand by and the operational modes 23 Open Key Use this key to open the compact disc transport 1 To close the transport press the open key again 10 Compact Disc Display Functions 24 Display Mode Key Use this key to cycle the compact disc display 7 through three options the elapsed time of the track currently playing time remaining in the current track and total remaining time of the disc or program The options appear in the compact disc display as they are selected 25 Display Dim Key Use this key to turn the compact disc display 7 on and off Compact Disc Functions 26 Direct Track Access Keypad Use the direct access keypad to select a com pact disc track With the direct trac
16. lly and continues until you press the stop button 11 or key 28 5 Press the stop button or key again to delete the A B loop Krell Playback System 28c 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 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 wa
17. n 2 Non inverting 0 Pin 3 Inverting 180 The CAST balanced and single ended outputs are located on the back panel Maintain the cor rect left right orientation IMPORTANT Connecting non CAST components to CAST inputs or outputs can damage your pean 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 output connections for bal anced or single ended voltage operation Please read the Warranty on page 15 to understand the warranty limitations of the KPS 28c 12 Digital Output Connections The KPS 28c is equipped with one ElAJ fiber optic digital output with a TosLink connector and one coaxial digital output with an RCA connector Use these connections to send this output to a digital recording device external digital analog processor or video source CONNECTING THE KPS 28c Follow these steps to connect the KPS 28c to your system 1 Make sure all power sources and compo nents are off before connecting inputs and outputs 2 Neatly organize wiring between the KPS 28c and between all system components Separate AC wires from audio cables to prevent hum or other unwanted noise from being introduced into the system 3 Connect the Krell CAST cables from the left and right Krell CAST 4 pin outputs 13 on the KPS 28c back panel to your CAST enabled preamplifier For balanced
18. or 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 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 will 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 s
19. or single ended operation connect the interconnect cables from either the left and right balanced 14 or the single ended 15 outputs on the KPS 28c back panel to the balanced or sin gle ended inputs on your preamplifier The remaining outputs can be connected to another preamplifier in a different system Krell Playback System 28c Connecting Your KPS 28c continued See Figure 2 on page 7 Note You can set up your KPS 28c to play a musi cal selection in three different areas Connect the CAST output to a CAST enabled system in one listening area the balanced output to a system in a second listening area and the single ended output to a system in a third lis tening area The musical selection will play simultaneously in all three areas 4 Connect the cables from your digital audio or video source to the optics output 16 or coaxial 17 digital output on the KPS 28c back panel IMPORTANT When switching between active sources s 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 1 Connect the AC power cord to the IEC power connector 20 then connect the AC power cord to the wall socket The KPS 28c is in the stand by mode The red stand by LED 3 illuminates 2 Press the power button 4 or pwr key 22 to switch the KPS 28c from the stand by to the operational mode The blue power LED 5 illumin
20. ortion 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 Krell Playback System 28c Unpacking 1 Open the shipping box and remove the top layer of foam You see these items 1 KPS 28c 1 AC power cord 1 12 VDC 12 Volt trigger remote cable link 1 25 amp slowblow fuse T 10 Torx wrench KPS 28c remote control AAA size 1 5 Volt batteries packet containing the Owner s Reference and the Warranty Registration Card N 2 Carefully remove the unit and accessories from the shipping box Remove the foam end caps and protective plastic wrap from the KPS 28c Notes lf 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 28c in the future repack the unit in its original packaging to prevent transit damage See Return Authorization Procedure on page 16 for more information Krell Playback System 28c Placement Before you install the KPS 28c into your sys tem review the following guidelines to choose the location for your component This will facili tate a clean trouble free installation The KPS 28c does not require a special rack or cabinet for installation For the dimensions of the KPS 28c see Spe
21. pecifications will be charged to the customer at cur rent parts and labor rates All operational features functions and specifications 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 15 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 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 Awww krellonline com Krell Playback System 28c PRODUCT SERIAL NUMBER 16 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 Dep
22. r or the digital input on your preamplifier POWER ON 1 Connect the AC power cord to the IEC power connector 20 then connect the AC power cord to the wall socket The KPS 28c is in the stand by mode The red stand by LED 3 illuminates 2 Press the power button 4 or pwr key 22 to switch the KPS 28c from the stand by to the operational mode The blue power LED 5 illuminates and you hear a click The KPS 28c is ready to play music TO PLAY A COMPACT DISC 1 Use the open close button 2 or open key 23 to open the compact disc transport 1 2 Place a compact disc on the transport 3 Use the open close button 2 or open key 23 to close the compact disc transport 1 Playback automatically begins from the first track Adjust the system volume through your preamplifier or amplifier 4 Press the stop button 11 or key 28 to end compact disc playback Note You can also begin track playback by pressing the play button 12 or key 29 or select a track using the direct track access keypad 26 the track forward and back buttons 8 9 or keys 30 or the search forward and back keys 31 Krell Playback System 28c FIGURE 1 THE KPS 28c FRONT PANEL O D HOCD KPS 28c 3 4 6 7 Compact Disc Compact Disc Functions Transport Functions 6 HDCD LED 1 Compact Disc Transport 7 Compact Disc Display 2 Open Close Button 8 Track Forward Button Power 9 Track Back Button 3 Stand by LED 1
23. rarily suspend play back of the current compact disc track To resume playing the track at the point pause was engaged press pause again or press the play button 12 or key 29 The red pause LED illu minates when pause is engaged 11 Stop Button Use this button to end compact disc playback 12 Play Button Use this button to activate playback from the beginning of the compact disc to resume play back after pause or to start playing a pro grammed sequence For more information see Operating Your KPS 28c on page 13 Krell Playback System 28c FIGURE 2 THE KPS 28c BACK PANEL 14 ANALOG OUTPUTS RIGHT LEFT LEFT cast OO O CAST 12VOC0 ROS RIGHT LEFT IN IN oo Cy oS O O RIGHT CAST PAT PENDING 20 of e N soson KPS 28c Krell Playback System KRELL INDUSTRIES INC 45 CONNAIR ROAD ORANGE CT 06477 3650 USA NO USER SEARVICEABLE PAATS INSIDE 18 19 21 Analog Outputs Digital Outputs 13 Left and Right CAST 16 Optics Output Outputs 17 Coax ial Output 14 Left and Right Balanced Back Panel Remote Outputs Connections 15 Left and Right Single ended 18 12 VDC In Outputs 19 RC 5 In Power 20 IEC Power Connector 21 Line Fuse fp eres aac a O O COAX amp W OPTICS MADE N USA 17 16 Back Panel Description See Figure 2 on page 7 The back panel of the KPS 28c provides con nections for analog and digital outputs power and remote control inputs Back panel features and their
24. rranty for Krell products is valid only 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 Krell s warranty because of regulations within a specific country Please check with your distributor for a complete understanding of the warranty in your country If 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 the factory is your responsibility Return freight within the United States U S A is included in the warranty If 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 Krell Playback System 28c 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 the owner of the unit Replacement parts and or products will be furnished only to the distribut
25. te a Program How to Create an A B Loop WARRANTY RETURN AUTHORIZATION PROCEDURE SPECIFICATIONS Page oOo O PSH A DO O WD PND h h O O 12 12 12 12 13 13 13 13 14 15 16 Back Cover Illustrations Page FIGURE 1 The KPS 28c Front Panel 5 FIGURE 2 The KPS 28c Back Pane 7 FIGURE 3 The KPS 28c Remote Control 9 Krell Playback System 28c Introduction Thank you for your purchase of the Krell Playback System 28c The KPS 28c s transport design eliminates error producing wobble and delivers exceptional tracking and focus accuracy regard less of environment or disc characteristics Digital circuitry provides ultra high signal resolution and direct coupled analog circuitry assures superior low frequency performance with low distortion wide bandwidth and minimal negative feed backs The KPS 28c can be seamlessly integrat ed into a home theater or whole house audio sys tem and the remote contro provides for the con venient operation of the KPS 28c as well as other Krell components This owner s reference manual contains impor tant information on placement installation and operation of your KPS 28c Please read this information carefully A thorough understanding of these details will help ensure satisfactory operation and long life for your KPS 28c and related system components Krell Playback System 28c Definition of Terms Following are the definitions of key terms us
26. umbers in paren theses refer to Figure 1 on page 5 Figure 2 on page 7 and Figure 3 on page 9 INPUT AND OUTPUT CONNEC TIONS IMPORTANT Make sure all components and power sources are off before connecting inputs and outputs 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 Analog Output Connections Connect the Krell CAST cables from the left and right Krell CAST 4 pin outputs 13 on the KPS 28c back panel to your CAST enabled preampli fier For balanced or single ended operation connect the interconnect cables from either the left and right balanced 14 or the single ended 15 outputs on the KPS 28c back panel to either the balanced or the single ended inputs on your preamplifier The remaining outputs can be con nected to another preamplifier in a different sys tem Note You can set up your KPS 28c to play a musi cal selection in three different areas Connect the CAST output to a CAST enabled system in one listening area the balanced output to a system in a second listening area and the sin gle ended output to a system in a third listen ing area The musical selection will play simul 4 taneously in all three areas Digital Output Connections Connect the cables from the optics output 16 or coaxial output 17 on the KPS 28c back panel to your digital recorde
27. y 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 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 s
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