Krell Industries S1500 User's Manual
Contents
1. Repeat steps 3 through 5 until you have checked each inter connect cable If all the interconnect cables appear to be sound and you still have hum you may be experiencing a ground loop Please contact your authorized Krell dealer distributor or Krell for sug gestions on how to eliminate the hum Krell S 1500 Multi channel Amplifier Questions and Answers Q Note When the amplifier is first plug ged in there is a brief delay before it can be put into the operational mode Please wait approximately 10 seconds Krell S 1500 Multi channel Amplifier A Should turn the S 1500 amplifier off unplug the amplifier when not playing music No Leave the S 1500 amplifier in the stand by mode when not playing music The stand by mode avoids cold starts as well as minimizes heat output and power consumption Turn the amplifier off if you plan to be away for a period of time for example on vacation See Operating the S 1500 Amplifier on page 15 When I turn the amplifier on there is a loud hum through the loudspeakers What should do When a new component is introduced a low frequency hum may occur in one or both loudspeakers Check that all input and output connections and cables are of sound construction See Troubleshooting System Noise on page 16 If the connections and cables are sound you may be experiencing a ground loop This can often be easily eliminated Please contact your autho rized K2. 1500 Multi channel Amplifier Front Panel 9 FIGURE 2 The S 1500 Multi channel Amplifier Back Panel 9 Krell S 1500 Multi channel Amplifier Introduction Krell S 1500 Multi channel Amplifier Thank you for your purchase of a Krell S 1500 Multi channel Amplifier The S 1500 amplifier is a flexible design that delivers five six or seven channels of amplification All three configurations include input and output connections for all seven channels The amplifiers differ only by how many channels are housed within the amplifier The S 1500 5 includes five amplifier channels the S 1500 6 includes six amplifier channels and the S 1500 7 includes seven amplifier channels The S 1500 5 and S 1500 6 may be upgraded with additional channels up to seven Please contact your authorized Krell dealer or distributor for infor mation on upgrading your amplifier to six or seven channels The S 1500 amplifier has balanced and single ended inputs for compatibility with other components The amplifiers can be oper ated using the 12 VDC power on off 12 V trigger signals from other components The S 1500 amplifier is versatile fitting a vari ety of installations including rack mounted and inside cabinetry This reference manual contains important information on place ment installation and operation of the S 1500 amplifier Please read this information carefully A thorough understanding of these details helps ensure
3. 500 45 Connair Road Orange CT 06477 3650 USA Multi channel Amplifier v 07 0 TEL 203 298 4000 FAX 203 891 2028 E MAIL krell krellonline com WEBSITE http www krellonline com
4. fault Krell S 1500 Multi channel Amplifier Connecting the S 1500 Amplifier to Your System INPUT AND OUTPUT CONNECTIONS The S 1500 Multi channel Amplifier is equipped with balanced and single ended inputs Krell recommends using balanced interconnect cables Balanced interconnect cables not only minimize sonic loss but are also immune to induced noise especially with installations using long cables Balanced connections have 6 dB more gain than single ended connections When level matching is critical please keep this gain value in mind The S 1500 amplifier is shipped with shorting pins in the XLR inputs These pins should remain in the XLR inputs if the amplifier is operating in the single ended mode When the shorting pin is inserted pins 1 lower left and 3 top are shorted together Remove the shorting pins to connect the amplifier for balanced operation The XLR pin configuration is described below Pin 1 Shield ground Pin 2 Non inverting hot 0 Pin 3 Inverting cold 180 Follow these steps to connect the S 1500 amplifier to your sys tem 1 Make sure all power sources and components are off before connecting inputs and outputs 2 Neatly organize the wiring between the amplifier and 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 interconnect cables from your output device to the ampli
5. satisfactory operation and long life for your S 1500 amplifier and related system components Please contact your authorized Krell dealer distributor or Krell if you have any questions about the S 1500 not addressed in this owner s reference Definition of Terms INPUT AND OUTPUT CONNECTIONS OPERATION TECHNOLOGY Following are the definitions of key terms used in this owner s ref erence Balanced A symmetrical input or output circuit that has equal impedance from both input terminals to a common ground reference point The industry standard for professional and sound recording instal lations balanced connections have 6 dB more gain than single ended connections and allow the use of long interconnect cables Balanced connections are less susceptible than single ended con nections to induced noise from the system or the environment 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 recom mended for connections requiring long cable runs Off When the AC power cord is not plugged into the wall the front panel LED is not illuminated and the component is off Stand by Mode When the AC power cord is plugged into the wall the front panel stand by and power LED 2 illuminates red indicating that the compon
6. the date of the original retail purchase as noted on the bill of sale or receipted invoice from an authorized Krell dealer or distributor Previously owned equipment when re purchased from an authorized Krell dealer or dis tributor has the balance of the original warranty based on the original date of manufacture Krell dealers and distributors are not authorized to sell current products on the internet Current products purchased via the internet do not have any transferable warranty The warranty for a Krell product is valid only in the country to which it was 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 warran ty in your country If the product 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 war ranty period Krell S 1500 Multi channel Amplifier Warranty continued Krell S 1500 Multi channel Amplifier 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 p
7. AYBACK LEVELS Krell S 1500 Multi channel Amplifier Always turn the amplifier off before changing inputs and mute or fully attenuate the preamplifier level when switching sources The S 1500 amplifier has tremendous reserves of power and safe ly drives loudspeakers to extremely high sound pressure levels However use care when setting high playback levels and lower the volume level at any sign of loudspeaker distress 15 Troubleshooting System Noise When you mix and match high performance audio components each with its own ground potential a low frequency hum may occur in one or all loudspeakers If this happens when you place the S 1500 Multi channel Amplifier into your system follow these simple troubleshooting steps 1 16 Check that all input and output connections are of sound construction With the amplifier off remove all the interconnect cables then turn the amplifier on If the hum disappears turn the amplifier off and reinsert one of the interconnect cables Turn the amplifier back on If the hum reappears with the interconnect cable reinserted the cable may need to be replaced Turn the amplifier off and connect a different interconnect cable to the same location Turn the amplifier back on If the hum disappears with the interconnect cable reinserted that cable most likely is sound Turn the amplifier off disconnect the interconnect cable and re connect one of the other interconnect cables
8. MPORTANT If the LED flashes red when the amplifier is in the stand by mode unplug the amplifier from the AC wall outlet to reset the protection circuit Check the loudspeakers and loudspeaker cables for poten tial short circuits before plugging the amplifier back into the wall outlet 10 Krell S 1500 Multi channel Amplifier Back Panel Description See Figure 2 on page 9 BALANCED INPUTS SINGLE ENDED INPUTS IMPORTANT AMPLIFIER CHANNEL OUTPUTS The S 1500 Multi channel Amplifier back panel provides connec tions for all inputs and outputs remote connection input and out put links and the AC power supply 3 Inputs 1 7 The S 1500 amplifier has seven channel inputs for output devices with balanced XLR connectors 4 Inputs 1 7 The S 1500 amplifier has seven channel inputs for output devices with single ended RCA connectors Use only one input to each amplifier channel at a time You may use the balanced inputs for some of the amplifier channels and the single ended inputs for the remaining channels 5 Outputs 1 7 The S 1500 amplifier has seven amplifier channel outputs The loudspeaker binding post terminals accept spade lugs bare wire or pins Use the red terminal for the positive connection and the black terminal for the negative connection IMPORTANT BACK PANEL REMOTE CONNECTIONS Tighten loudspeaker binding posts by hand only 6 12 VDC Remote Power Out The S 1500 amplifier is equipped wit
9. RRED TO FULL POWER OUTPUT gt 104 dB gt 104 dB gt 104 dB A WEIGHTED gt 115 dB gt 115 dB gt 115 dB GAIN 26 2 dB 26 2 dB 26 2 dB TOTAL HARMONIC DISTORTION THD lt 0 03 1kHz at 150 W 8 Ohms lt 0 20 20 kHz at 150 W 8 Ohms lt 0 03 1kHz at 150 W 8 Ohms lt 0 20 20 kHz at 150 W 8 Ohms lt 0 03 1kHz at 150 W 8 Ohms lt 0 20 20 kHz at 150 W 8 Ohms INPUT IMPEDANCE SINGLE ENDED 45 kOhms 45 kOhms 45 kOhms BALANCED 90 kOhms 90 kOhms 90 kOhms INPUT SENSITIVITY SINGLE ENDED OR BALANCED 1 70 Vrms 1 70 Vrms 1 70 Vrms OUTPUT POWER EACH CHANNEL DRIVEN 150 Wrms 8 Ohms 300 Wrms 4 Ohms 150 Wrms 8 Ohms 300 Wrms 4 Ohms 150 Wrms 8 Ohms 300 Wrms 4 Ohms OUTPUT VOLTAGE 98 V peak to peak 98 V peak to peak 98 V peak to peak 35 Vrms 35 Vrms 35 Vrms OUTPUT CURRENT 15 A peak 15 A peak 15 A peak SLEW RATE 60 V s 60 V s 60 V s OUTPUT IMPEDANCE lt 0 070 Ohms at 20 Hz lt 0 080 Ohms 20Hz to 20 kHz lt 0 070 Ohms at 20 Hz lt 0 080 Ohms 20Hz to 20 kHz lt 0 070 Ohms at 20 Hz lt 0 080 Ohms 20Hz to 20 KHz lt DAMPENING FACTOR 115 at 20 Hz referred to 8 Ohms 100 20Hz to 20 kHz referred to 8 Ohms 115 at 20 Hz referred to 8 Ohms 100 20Hz to 20 kHz referred to 8 Ohms 115 at 20 Hz referred to 8 Ohms 100 20Hz to 20 kHz referred to 8 Ohms Krell S 1500 Multi channel Amplifier 21 Specifications conti
10. S 1500 MULTI CHANNEL Owner s Reference INSTRUCTIONS FOR USE tie it ch emee S 1500 Multi channel Amplifier Instructions for Use v 07 0 CONTACT INFORMATION cE This product complies with the EMC directive 89 336 EEC and the low voltage directive 73 23 EEC K Krell Industries Inc 45 Connair Road Orange CT 06477 3650 USA TEL 203 298 4000 FAX 203 891 2028 E MAIL krell krellonline com WEBSITE http www krellonline com IMPORTANT SAFETY INSTRUCTIONS Read Instructions Keep these Instructions Heed all Warnings Follow all Instructions Do not use this apparatus near water Clean only with a dry cloth NO QA WN ZB Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat go Unplug this apparatus during lightning storms or when unused for long periods of time 9 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as a power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 10 The S 1500 amplifier must be placed on a firm level surface where it is not exposed to dripping or splashing 11 The ventilation grids on the top and bottom of the S 1500 amplifier must be unobs
11. ay return freight to the U S A based freight for warder of your choice Freight and other charges to ship the product from the freight forwarder to you are also your responsibility Krell is not responsible for any damage incurred in transit Krell will file claims for damages as necessary for a product damaged 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 product Replacement parts and or products will be furnished only to the distributor performing service on this product on an exchange basis only any parts and or products returned to Krell for exchange become the property of Krell No expressed or implied warranty is made for any Krell product dam aged by accident abuse misuse natural or personal disaster or unau thorized modification Any unauthorized voltage conversion disassembly component replacement perforation of chassis updates or modifications per formed to the product will void the warranty The operating voltage of the product is determined by the factory and can only be changed by an authorized Krell distributor 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 service that has been modified in any way without Krell authorization all war
12. ed with addi tional channels to make a total of seven Please contact your Krell autho rized dealer or distributor for information on upgrading your amplifier to six or seven channels Krell S 1500 Multi channel Amplifier Operating the S 1500 Amplifier ON OFF AND OPERATION When powering up your system turn the amplifiers on last When powering down your system turn amplifiers off first The proce dures for operating the S 1500 Multi channel Amplifier follow 1 Plug the AC power cord into the amplifier s IEC connector 8 2 Plug the other end of the AC power cord into the AC wall outlet 3 The LED 2 illuminates red to indicate it is in stand by mode When the amplifier is first plugged in there is a brief delay before it can be put in the operational mode Please wait approximately 10 seconds IMPORTANT PROTECTION CIRCUITRY If the LED flashes red when the amplifier is in the stand by mode unplug the amplifier from the AC wall outlet to reset the protection circuitry Check the loudspeakers and loudspeaker cables for potential short circuits before plugging the amplifier back into the wall outlet 4 Press the power button 1 on the front panel The LED 2 illuminates blue and you will hear a click The amplifier is in the operational mode Krell recommends leaving the S 1500 amplifier in the stand by mode unless you will not be playing music for a long time IMPORTANT CHANGING INPUTS HIGH PL
13. ent is in the stand by mode This low power consumption status keeps the audio and circuits at idle Krell recommends leav ing the component in the stand by mode when it is not playing music Operational Mode From the stand by mode when the power button on the front panel is pressed and the front panel stand by and power LED 2 illuminates blue the component is in the operational mode and ready to play music Krell Current Mode A proprietary Krell circuit topology in which the audio gain stages of a component operate in the current domain rather than the voltage domain This unique technology provides the component with exceptional speed and a wide bandwidth Krell S 1500 Multi channel Amplifier Unpacking 1 Open the shipping box and remove the top layer of foam The following items are visible 1 S 1500 Multi channel Amplifier 1 Accessory Kit containing 1 AC power cord 1 12 VDC output 12 V trigger cable 1 12A 1 4 inch slow blow fuse for 100 120 VAC 1 6A 1 4 inch slow blow fuse for 220 240 VAC 1 Packet containing the owner s reference manual and the warranty registration card IMPORTANT Two people are needed to remove the amplifier from the shipping box 2 Grasp the underside of the amplifier and lift it straight out of the shipping box 3 Place the amplifier in a safe location and remove the protective plastic wrapping Notes Krell S 1500 Multi channel Amplifier If any of these ite
14. fier inputs using the balanced 3 or single ended 4 inputs located on the back panel The balanced inputs use three pin XLR connectors the single ended inputs use RCA connectors The S 1500 5 uses only inputs 1 through 5 and the S 1500 6 uses inputs 1 through 6 IMPORTANT Krell S 1500 Multi channel Amplifier Use only one input to each amplifier channel at a time You may use the balanced inputs for some of the amplifier channels and the sin gle ended inputs for the remaining channels 13 Connecting the S 1500 Amplifier continued INPUT AND OUTPUT CONNECTIONS continued 4 Connect the loudspeaker cables to the S 1500 amplifier chan nel output binding posts 5 located on the back panel The S 1500 5 uses only outputs 1 5 and has caps on the loudspeaker binding posts of channels 6 and 7 The S 1500 6 uses outputs 1 6 and has caps on the loudspeaker binding posts of channel 7 The binding post terminals accept spade lugs bare wire or pins Use the red terminal for the positive connection and the black terminal for the negative connection IMPORTANT Note 14 Tighten loudspeaker binding posts by hand only 5 Plug the AC power cord into the amplifiers IEC connector 8 6 Plug the other end of the AC power cord into the AC wall outlet The amplifier is now ready for operation See Operating the S 1500 Amplifier on the next page The S 1500 5 and S 1500 6 amplifiers may be upgrad
15. from the Krell website 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 HOW TO PURCHASE ADDITIONAL PACKING SERIAL NUMBER 20 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 unuseable If Krell determines that new packaging is required the owner will be notified before the product is returned To purchase additional packaging please contact your authorized Krell dealer distributor or the Krell Service Department Your S 1500 Multi channel Amplifier product serial number is Krell S 1500 Multi channel Amplifier Specifications S 1500 7 S 1500 6 S 1500 5 FREQUENCY RESPONSE 20 Hz to 20 kHz 20 Hz to 20 kHz 20 Hz to 20 kHz 0 0 2 dB 0 0 2 dB 0 0 2 dB lt 0 2 Hz to 95 kHz lt 0 2 Hz to 95 kHz lt 0 2 Hz to 95 kHz 0 dB 3 dB 0 dB 3 dB 0 dB 3 dB SIGNAL TO NOISE RATIO WIDEBAND UNWEIGHTED REFE
16. h an output that sends 12 VDC power on off 12 V trigger signals to other Krell components and other devices that incorporate a 12 V trigger Notes Krell S 1500 Multi channel Amplifier When the component is in the operational mode the 12 VDC Out pro vides 12 V of DC output When the component is in the stand by mode or off the DC output is O V 12 VDC Out 12 V trigger current is limited to 30 mA 11 Back Panel Description continued BACK PANEL REMOTE CONNECTIONS continued 7 12 VDC Remote Power In The S 1500 amplifier is equipped with an input that receives 12 VDC power on off 12 V trigger signals from other Krell compo nents and other devices that incorporate a 12 V trigger This allows you to turn the S 1500 on and off using a Krell or other component in a custom installation Note POWER Consult the owner s manual of each component used in a custom instal lation to take full advantage of the S 1500 amplifier remote capability 8 IEC Connector The connector is for use with the provided IEC standard 15 amp power cord Note WARNING 12 The AC mains fuse must be replaced with the spare fuse provided Use the 12A 1 4 inch slow blow fuse for 100 120 VAC and use the 6A 1 4 inch slow blow fuse for 220 240 VAC Turn off the AC power and unplug the power cord before changing the AC mains fuse 9 Fuseholder The AC mains fuse protects the S 1500 amplifier in the event of an internal
17. ms 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 amplifier in the future repack the unit in its original packaging to prevent transit damage See Return Authorization Procedure on page 20 for more information Placement AC Power Guidelines Before you integrate the S 1500 Multi channel Amplifier into your system review the following guidelines to choose the location for the component This will facilitate a clean trouble free installation The S 1500 amplifier requires at least two inches 5 cm of clear ance on each side and at least two inches 5 cm of clearance above and below the component to provide adequate ventilation The S 1500 amplifier does not require any type of special rack or cabinet for installation For the dimensions of your amplifier see Specifications on page 21 Place the amplifier as close to the loudspeakers as possible and keep the loudspeaker cable length to a minimum Loudspeaker cable adds impedance to the load that the amplifier must drive regardless of the cable s gauge Krell amplifiers drive the lowest impedances with ease but long loudspeaker cables reduce the maximum power that is delivered to the loudspeakers Krell recommends operating the S 1500 amplifier from a dedicat ed 15 amp AC power line Please contact your Krell dealer distrib utor or Krell before
18. nued S 1500 7 S 1500 6 S 1500 5 POWER CONSUMPTION STAND BY 90 W 80 W 70 W IDLE 170 W 150 W 130 W MAXIMUM 1800 W 1550 W 1300 W HEAT OUTPUT STAND BY 310 BTU hr 280 BTU hr 240 BTU hr IDLE 580 BTU hr 520 BTU hr 450 BTU hr MAXIMUM 2600 BTU hr 2200 BTU hr 1900 BTU hr INPUTS 7 balanced 6 balanced 5 balanced via XLR connectors via XLR connectors via XLR connectors 7 single ended 6 single ended 5 single ended via RCA connectors via RCA connectors via RCA connectors OUTPUTS 7 channels via 5 way 6 channels via 5 way 5 channels via 5 way binding posts binding posts binding posts REMOTE CONNECTORS One 12 VDC input One 12 VDC input One 12 VDC input 12 V trigger 12 V trigger 12 V trigger via a 3 5 mm connector via a 3 5 mm connector viaa3 5 mm connector One 12 VDC output One 12 VDC output One 12 VDC output 12 V trigger 12 V trigger 12 V trigger 30 mA maximum 30 mA maximum 30 mA maximum via a 3 5 mm connector via a 3 5 mm connector via a 3 5 mm connector DIMENSIONS INCHES 17 3w x 5 7h x 19 8d 17 3w x 5 7h x 19 8d 17 3w x 5 7h x 19 8d CENTIMETERS 43 9w x 14 5h x 50 3d 43 9w x 14 5h x 50 3d 43 9w x 14 5h x 50 3d WEIGHT SHIPPING 70 Ib 31 7 kg 68 Ib 30 8 kg 66 Ib 29 9 kg UNIT ONLY 60 Ib 27 1 kg 58 Ib 26 2 kg 56 Ib 25 3 kg All operational features functions specifications and policies are subject to change without notification 22 Krell S 1500 Multi channel Amplifier Krell Industries Inc S 1
19. ranties on that product will be void The product 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 factory specifications will be charged to the customer at current parts and labor rates All operational features functions and specifications and policies are subject to change without notification 19 Return Authorization Procedure HOW TO EXPEDITE SERVICE ACCESSING THE SERVICE REQUEST FORM TO CONTACT THE KRELL SERVICE DEPARTMENT HOW TO RETURN A PRODUCT If you believe there is a problem with your component please con tact your dealer distributor or the Krell factory to discuss the prob lem 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 Simply click on the Service Request Form in the navigation tier on the Krell home page at http www krellonline com or paste the fol lowing URL into your browser http www krellonline com service2 php id 79 amp page serviceRA TEL 203 298 4020 Monday Friday 9 00 am to 5 00 pm EST FAX 203 795 2287 E MAIL service krellonline com WEBSITE _ http Awww krellonline com 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 ship ping address
20. rell dealer distributor or Krell for suggestions When I connect the amplifier to my system using the single ended inputs a loud buzz comes from my loudspeakers What is it Check that the shorting pins for the S 1500 amplifier are inserted into the XLR inputs the unit is shipped with the pins in place When using the single ended inputs shorting pins must be inserted between pins 1 and 3 to keep external noise from corrupting the signal For more information see Connecting the S 1500 Amplifier to Your System on page 13 cannot turn the amplifier on Why not Make sure the front panel LED is not flashing red If it is flash ing red unplug the amplifier from the AC wall receptacle and then plug it back into the AC wall receptacle If the LED contin ues to flash contact your Krell authorized dealer or distributor or Krell If the LED is not illuminated check the power cord and check the AC mains fuse To remove the fuse unplug the power cord from the amplifier and slide out the fuseholder get no signal from one of the amplifier channels when the unit is on Why not Make sure you are not connected to channels 6 or 7 ona S 1500 5 or to channel 7 on a S 1500 6 If you are using the single ended input make sure the shorting pin is inserted between pins 1 and 3 and not between pins 2 and 3 17 Warranty To register your product for warranty benefits please complete and return the Warranty Registra
21. tion Card enclosed in the shipping box within 15 days of purchase Thank you 18 Krell products have a limited warranty Amplifiers preamplifiers preamp processors and receivers carry a limited warranty of five years for parts and labor on circuitry Loudspeakers carry a limited warranty of five years for parts and labor CD and DVD players carry a limited warranty of five years for parts and labor on circuitry and three years for parts and labor on mechanical parts Should the 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 This warranty does not apply to damage caused by acts of God or nature This warranty shall be in lieu of any other warranty expressed or implied including but not limited to any implied warranty of mer chantability or fitness for a particular purpose There are no warranties which exceed beyond those described in this document if the 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 consequential damages arising from purchase use or inability to use the 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 sub stantiating that the product is within the warranty period must be pre sented to obtain warranty service The warranty begins on
22. tructed at all times during operation Do not place flammable material above or beneath the S 1500 amplifier 12 Before making connections to the S 1500 amplifier ensure that the power is off and other components are in mute or stand by mode Make sure all cable terminations are of the highest quality free from frayed ends short circuits or cold solder joints 13 THERE ARE NO USER SERVICEABLE PARTS INSIDE AN S 1500 AMPLIFIER Please contact Krell if you have questions not addressed in this guide 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 Current Mode is a trademark of Krell Industries Inc All other trademarks and tradenames are reg istered to their respective companies 2007 by Krell Industries Inc All rights reserved P N 309582 F Contents Krell S 1500 Multi channel Amplifier INTRODUCTION DEFINITION OF TERMS UNPACKING PLACEMENT AC Power Guidelines FRONT PANEL DESCRIPTION BACK PANEL DESCRIPTION CONNECTING THE S 1500 AMPLIFIER TO YOUR SYSTEM Input and Output Connections OPERATING THE S 1500 AMPLIFIER On Off and Operation TROUBLESHOOTING SYSTEM NOISE QUESTIONS AND ANSWERS WARRANTY RETURN AUTHORIZATION PROCEDURE SPECIFICATIONS Page co N QOQ 11 13 15 16 17 18 20 21 Illustrations Page FIGURE 1 The S
23. using any devices designed to alter or stabilize the AC power for the S 1500 Krell S 1500 Multi channel Amplifier Figure 1 The S 1500 Multi channel Amplifier Front Panel S 1S808 Power 1 Power Button 2 Stand by and Power LED Figure 2 The S 1500 Multi channel Amplifier Back Panel 3 4 r INPUT 1 m INPUT 2 m INPUT 3 m INPUT 4 m INPUT 5S m INPUT 6 m INPUT 7 E usna KEREL S 1500 wo Usim Sancin narra neo 5 8 9 Balanced Inputs Remote Connections 3 Inputs 1 7 6 12 VDC Remote Power Out Single Ended Inputs 7 12 VDC Remote Power In 4 Inputs 1 7 Power Amplifier Channel Outputs 8 IEC Connector 5 Outputs 1 7 9 Fuseholder Krell S 1500 Multi channel Amplifier Front Panel Description See Figure 1 on page 9 The S 1500 Multi channel Amplifier front panel provides power on and indicates operating status 1 Power Button Use this button to switch the S 1500 amplifier power between the stand by and the operational modes and also to switch the 12 VDC output 12 V trigger on and off 2 Stand by and Power LED When the AC power cord is plugged into the wall the LED illumi nates in red indicating that the component is in the stand by mode When the power button is pressed the LED illuminates in blue indicating that the component is in the operational mode The LED flashes red when the protection circuit is activated I
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