Crown Audio K Series User's Manual
Contents
1. MMW 2 HODHOQOQO A MHH OG G6 6 6 GG Q0GQ09 600006006006 6 6606006009055 TUER ETAT Mixer Studio Monitors or Speaker Stacks sensimvir OUTPUT INEST SENSITIVI Figure 3 9 av 26 dB OFF ofi IM Bridge Mono Wiring Mono or Stereo In Mono Out Do Not Use Black Terminals MMMM BEES 666669696 efi 6909090000 660990000 999 6609605006020 999 l IAI Mixer Sub Woofer i 0 0 MH 0 Operation Manual K Series Power Amplifiers 3 Setup Auxiliary Output for daisy chaining etc Operation Manual INPUT BRIDGE INPUT sensitivity output Y INPUT ISENSITIVIT m 14V 26dB ON OFF ON OFF 14V 26dB HHHHHHHH 6 0 0 O O A eao E o6000620202020 6069060006 2999 o D D QAOQAOAQAOQ puai Studio Monitors or Speaker Stacks INPUT BRIDGE INPUT sensitivity outPuT Y INPUT lsensitivi 14V 26dB ON OFF J ON OFF 14V 26dB Do Not Use Black Terminals HHHH O O a o E 6669060000 66660600090 999 Q G G6 o G OG Q0 TH TP Mixer Sub Woofer H Figure 3 10 Wiring for Y Mono Input Dual Output Figure 3 11 Wiring for Y Mono Input Bridge Mono Output crown 3 6 5 Y Mono Input to Dual Outputs If yo2. Credit Card Information below is required however if you do not want to provide this information at this time we will contact you when your unit is repaired for the information Type of credit card MasterCard Visa American Express Discover Type of credit card account Personal Consumer Business Corporate Card Exp date Card ID Card ID is located on the back of the card following the credit card in the signature area On American Express it may be located on the front of the card This number is required to process the charge to your account If you do not want to provide it at this time we will call you to obtain this number when the repair of your unit is complete Name on credit card Billing address of credit card Operation Manual page 19 C Cum H A Harman International Company
3. Cooling Convection cooling Convection cooling Dimensions Width EIA Standard 19 inch 48 3 cm rack mount EIA RS 310 B EIA Standard 19 inch 48 3 cm rack mount EIA RS 310 B Height 3 5 inches 8 9 cm 3 5 inches 8 9 cm Depth 16 inches 40 6 cm 16 inches 40 6 cm Weight Net Weight 32 pounds 14 6 kg 38 pounds 17 3 kg Shipping Weight 38 pounds 17 2 kg 44 pounds 20 0 kg Operation Manual page 15 croun 8 Service Crown amplifiers are quality units that rarely require ser vicing Before returning your unit for service please con tact Crown Technical Support to verify the need for servicing This unit has very sophisticated circuitry which should only be serviced by a fully trained technician This is one reason why each unit bears the following label CAUTION To prevent electric shock do not A remove covers No user serviceable parts inside Refer servicing to a qualified technician Complete the Crown Audio Factory Service Information form in the back of this manual when returning a Crown product to the factory or authorized service center The form must be included with your product inside the box or in a packing slip envelope securely attached to the outside of the shipping carton Do not send this form separately 8 1 International and Canada Service Service may be obtained from an authorized service cen ter Contact your local Crown Amcron representative or our office for a list o
4. ssss 15 8 Service sees 16 8 1 International and Canada Service 16 8 2 US Service se 16 8 2 1 Service at a US Service Center 16 8 2 2 Factory SOFVICE i res 16 8 2 3 Factory Service Shipping Instructions 16 8 2 4 Packing Instructions 16 8 2 5 Estimate Approval 16 8 2 6 Payment of Non Warranty Repairs 16 9 Warranty sss 17 Crown Factory Service Information Form 19 Operation Manual K Series Power Amplifiers K1 Power 2 ohm Stereo per channel 750W 4 ohm Stereo per channel 550W 8 ohm Stereo per channel 350W 4 ohm Bridge Mono 1 500W 8 ohm Bridge Mono 1 100W 1 kHz Power refers to maximum average power in watts at 1 kHz with 0 1 or less TRUE THD 1 kHz K2 Power 2 ohm Stereo per channel 1 250W 4 ohm Stereo per channel 800W 8 ohm Stereo per channel 500W 4 ohm Bridge Mono 2 500W 8 ohm Bridge Mono 1 600W 1 kHz Power refers to maximum average power in watts at 1 kHz with 0 1 or less TRUE THD Operation Manual crown ki 1 Welcome Congratulations on purchasing a Crown K Series amplifier It is designed to provide very high power in a lightweight package without using a cooling fan This means your amp runs quieter no fan noise and cleaner no need for filters The K Series amplifiers are very energy efficient as well Modern power ampli
5. C Enable Indicator The green Enable indicator turns on when the amplifier has been turned on and has power When first turned on there will be a 2 second delay while the amplifier performs a crown quick start up test Then the Enable indicator will turn on to its full brightness If no signal is present the Enable indicator will switch to a dimmer green D Power Switch Amplifier is on when the top half of the switch is depressed Figure 4 2 Front Panel Indicators a Signal Operation Manual Figure 4 1 Front and Back Panel Controls Indicators and Connectors A page 11 Curouim 4 Operation page 12 BALANCED INPUT WIRING ST sess HEIL e row E Pr 4 3 Back Panel Controls and Connectors Figure 4 3 below points out the controls and connectors on the back panel of the K Series amplifiers The K1 and K2 look identical except for product nameplates and fuse specifications E Bridge Output Switch This switch selects whether or not the output signal is bridged across the two channels To operate the amplifier in bridge mono mode set this switch to ON To operate the amplifier in dual mode set this switch to OFF See Section 3 6 1 for more detail F Y Input Switch If you want to feed a mono audio signal to two channels each with its own level control set the Y Input switch to ON This connects the ACCEPT ANY INTERFERENCE THAT IRED OPERATION CH 2 INPUTS MONO M
6. Backed by the industry s ONLY three year no fault fully transferable warranty page 13 crown 6 Troubleshooting CONDITION No power to the THL e amplifier Clip 6 e POSSIBLE REASON page 14 10C O Enable Signal e The amplifier s Power switch is off e The amplifier is not plugged into the power receptacle e The amplifier s low voltage power supply fuse has blown Return amp to Crown or an authorized Crown Service Center for servicing K Series Power Amplifiers CONDITION Input signal but no sound POSSIBLE REASON e The amplifier has just been turned on and is still in the 4 second turn on delay e Speakers not connected CONDITION Distorted sound POSSIBLE REASON e Input signal level is too high Turn down your amplifier level controls NOTE Your amplifier should never be operated at a level which causes the Clip LED to flash constantly e Load is wired incorrectly or Bridge Mono Switch is set incorrectly Check both Note If sound is distorted but clip LED is not flashing check mixer levels and gain staging mixer clip lights and pads built into micro phones TLC oO dim green light Clip Xt c e Enable Signal 6 CONDITION No input signal POSSIBLE REASON e Input signal level is very low Level controls are turned down e Input cables are not connected TLC Xt tp O XX loc O Enable Signal CONDITION TLC indicato
7. DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES YOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGES RESULTING FROM ANY DEFECT IN THE NEW CROWN PRODUCT THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULT ING FROM SUCH A DEFECT SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATIONS OF INCIDENTAL OR CONSEQUENTIAL DAM AGES SO THE ABOVE LIMITATION OR EXCLU SION MAY NOT APPLY TO YOU WARRANTY ALTERATIONS No person has the authority to enlarge amend or modify this Crown Warranty This Crown War ranty is not extended by the length of time which you are deprived of the use of the new Crown product Repairs and replacement parts provided under the terms of this Crown Warranty shall carry only the unexpired portion of this Crown Warranty DESIGN CHANGES We reserve the right to change the design of any product from time to time without notice and with no obligation to make corresponding changes in products previously manufactured LEGAL REMEDIES OF PURCHASER THIS CROWN WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE 0 action to enforce this Crown Warranty shall be commenced after expiration of the warranty period THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERS CONTAINED IN THIS MANUAL FOR CROWN PRODUCTS 12 01 crown page 17 K Series Power Amplifiers croun 9 Warrant y WORLDWIDE EXCEPT USA amp CANADA SUMMA
8. amp crown K Series crown K1 Ore Y K1 Operation Manual Obtaining Other Language Versions To obtain information in another language about the use of this product please contact your local Crown Distributor If you need assistance locating your local distributor please contact Crown at 574 294 8000 This manual does not include all of the details of design production or variations of the equipment Nor does it cover every possible situation which may arise during installation operation or maintenance The information provided in this manual was deemed accurate as of the publication date However updates to this information may have occurred To obtain the latest version of this manual please visit the Crown website at www crownaudio com Trademark Notice Crown Crown Audio BCA and Amcron are registered trademarks of Crown International Other trademarks are the property of their respective owners Some models may be exported under the name Amcron 2005 by Crown Audio Inc 1718 W Mishawaka Rd Elkhart Indiana 46517 9439 U S A Telephone 574 294 8000 H A Harman International Company 102010 8 4 05 crown Important Safety Instructions page 2 NOLS wWNhM Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Do not block any ventilation openings Install in ac
9. amp outputs or both Patented front panel design Backed by the industry s ONLY three year no fault fully transferable warranty CrON 2 How to Use This Manual This manual provides you with the necessary information to safely and correctly set up and operate your amplifier It does not cover every aspect of installation setup or operation that might occur under every condition For addi tional information please consult Crown s Amplifier Application Guide available online at www crownaudio com Crown Technical Sup port your system installer or retailer We strongly recommend you read all instruc tions warnings and cautions contained in this manual Also for your protection please send in your warranty registration card today And save your bill of sale it s your official proof of purchase page 5 crown 3 Setup page 6 3 1 Unpack Your Amplifier Please unpack and inspect your amplifier for any damage that may have occurred during transit If damage is found notify the transpor tation company immediately Only you can ini tiate a claim for shipping damage Crown will be happy to help Save the shipping carton as evidence of damage for the shipper s inspec tion We also recommend that you save all packing materials so you will have them if you ever need to transport the unit Never ship the unit without the factory pack YOU WILL NEED not supplied e Input wiring cables e Output wiri
10. of the amplifier Figure 3 2 Spacing the Amplifiers in the Rack Improves Cooling Operation Manual K Series Power Amplifiers 3 Setup A Operation Manual 3 4 Choose Input Wire and Connectors Crown recommends using pre built or profes sionally wired balanced line two conductor plus shield 22 24 gauge cables and connec tors Use either 3 pin male XLR connectors or TRS phone connectors Figure 3 3 shows connector pin assignments for balanced wiring and Figure 3 4 shows connec tor pin assignments for unbalanced wiring NOTE Custom wiring should only be per formed by qualified personnel 3 5 Choose Output Wire and Con nectors Crown recommends using pre built or profes sionally wired high quality two conductor heavy gauge speaker wire Use bare wire a dual banana plug or spade lugs on the amplifier end of each speaker cable Figure 3 5 To prevent the possibility of short circuits wrap or other wise insulate exposed loudspeaker cable con nectors Using the guidelines below select the appropri ate size of wire based on the distance from amplifier to speaker Distance Wire Size up to 25 ft 16 gauge 26 40 ft 14 gauge 41 60 ft 12 gauge 61 100 ft 10 gauge 101 150 ft 8 gauge 151 250 ft 6 gauge CAUTION Never use shielded cable for output wiring BALANCED UNBALANCED SHIELD SHIELD Figure 3 3 Balanced Input Figure 3 4 Unbalanced Input Connector Wiring Co
11. CS WE RECOMMEND THAT YOU CONTACT YOUR SUPPLY AUTHORITY BEFORE CONNECTION page 3 crown Table of Contents page 4 Important Safety Instructions Declaration of Conformity 1 Welcome occ cesseesseesteesteaseesteenens 3 2 Install Your Amplifier sss 3 3 Ensure Proper Cooling ssssss 3 4 Choose Input Wire and Connectors 3 5 Choose Output Wire and Connectors 3 6 Set Up and Wire Your System ss 3 6 1 Set the Mode Modes Switches 3 6 2 Set Input Sensitivity 3 6 3 Stereo Mode ses 3 6 4 Bridge Mono Mode sss 3 6 5 Y Mono Input to Dual Outputs 3 6 6 Y Mono Input to Bridge Mono Output 3 7 Connect to AC Mains ss 3 8 Startup Procedure sse 4 Operation cscs 4 1 Precautions ssssssssseeees K Series Power Amplifiers 4 2 Front Panel Controls and Indicators 11 4 3 Back Panel Controls and Connectors 12 5 Advanced Features and Options 13 5 1 Protection Systems 13 5 1 1 TLC 13 5 1 2 Out of band Filtering ss 13 5 1 3 Inrush Limiting sss 13 5 14 Fuse 5 2 Advanced Features sss 13 6 Troubleshooting sssssss 14 7 Specifications
12. ING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE 16 DO NOT EXPOSE TO DRIPPING OR SPLASH ING DO NOT PLACE OBJECTS FILLED WITH LIQUID SUCH AS VASES ON THIS APPARA TUS TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR BOTTOM COVERS NO USER SERVICE ABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL A PR VENIR LE CHOC LECTRIQUE N ENLEVEZ PAS LES COUVERCLES IL N Y A PAS DES PAR TIES SERVICEABLE A L INT RIEUR TOUS REPA RATIONS DOIT ETRE FAIRE PAR PERSONNEL QUALIFI SEULMENT TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTA CLE THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE WATCH FOR THESE SYMBOLS The lightning bolt triangle is used to alert the user to the risk of electric shock The exclamation point triangle is used to alert the user to important operating or maintenance instruc tions Pb CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE N OUVREZ PAS K Series Power Amplifiers IMPORTANT K Series amplifiers require Class 2 output wiring MAGNETIC FIELD CAUTION Do not locate sensitive high gain equip ment such as preamplifiers or tape decks directly above or below the unit Because this amplifier has a high power density it has a strong magnetic field which can induce hum into unsh
13. ODES CH 1 INPUTS INPUT SENSITIVITY BRIDGE sye INPUT output Y INPUT SENSITIVITY l ON OFF ov Cia CAUTION TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TTO ER NO USER SERVICEABALE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ATTENTION D BRANCHER AVANT D OUVRIR input signals of both channels together in par allel To operate in dual mode set this switch to OFF See Section 3 6 1 for more detail G XLR type Input Connector This is a female XLR type connector one per channel that accepts a balanced or unbalanced input signal See Section 3 4 for pin assign ments H Input Sensitivity Switch This switch selects between 1 4V sensitivity or 26 dB gain See Section 3 6 2 for more detail I Phone Jack Input Connector This is a 1 4 inch phone jack connector one per channel that accepts a balanced or unbal anced input signal See Section 3 4 for terminal assignments L Figure 4 3 Back Panel Controls and Connectors WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE K Series Power Amplifiers J Power Fuse This fuse protects the high voltage power supply K Power Cord This permanently attached cable conducts the AC mains electricity to the amplifier L Output Connectors These 5 way binding post connectors one pair per channel provide the amplifier output signal for connection to loudspeakers The load can be con
14. RY OF WARRANTY Crown International 1718 West Mishawaka Road Elkhart Indiana 46517 4095 U S A warrants to you the ORIGINAL PURCHASER and ANY SUB SEQUENT OWNER of each NEW Crown1 product for a period of three 3 years from the date of pur chase by the original purchaser the warranty period that the new Crown product is free of defects in materials and workmanship and we further warrant the new Crown product regardless of the reason for failure except as excluded in this Warranty 1 Note If your unit bears the name Amcron please substitute it for the name Crown in this warranty ITEMS EXCLUDED FROM THIS CROWN WARRANTY This Crown Warranty is in effect only for failure of a new Crown product which occurred within the Warranty Period It does not cover any product which has been damaged because of any inten tional misuse accident negligence or loss which is covered under any of your insurance contracts This Crown Warranty also does not extend to the new Crown product if the serial number has been defaced altered or removed WHAT THE WARRANTOR WILL DO We will remedy any defect regardless of the rea son for failure except as excluded by repair replacement or refund We may not elect refund unless you agree or unless we are unable to pro vide replacement and repair is not practical or cannot be timely made If a refund is elected then you must make the defective or malfunctioning product ava
15. autions for optimum performance and safety 1 Before use your amplifier must be config ured for proper operation as described in the Setup section of this manual Improper wiring can result in serious operating difficulties For advanced setup techniques consult Crown s Amplifier Application Guide available online at www crownaudio com 2 Use care when making connections select ing signal sources and controlling the output level The load you save may be your own 3 Do not short the ground lead of an output cable to the input signal ground This may form a ground loop and cause oscillations 4 Never connect the output to a power supply battery or power main Electrical shock may result 5 Tampering with the circuitry or making unauthorized circuit changes may be hazardous and invalidates all agency listings 6 Do not operate the amplifier with the Clip LED constantly flashing 7 Do not overdrive the mixer which will cause clipped signal to be sent to the amplifier Such signals will be reproduced with extreme accu racy and loudspeaker damage may result 8 Do not operate the amplifier with less than the rated load impedance Due to the amplifier s output protection such a configuration may result in premature clipping and speaker dam age Crown is not liable for damage that results from overdriving other system components K Series Power Amplifiers Operation Manual K Series Power Amplifier
16. by using an adapter or other methods Amplifiers don t create energy The AC mains voltage and current must be sufficient to deliver the power you expect You must operate your amplifier from an AC mains power source with not more than 1096 variation above or below the amplifier s specified line voltage and within the specified frequency requirements indicated on the amplifier s back panel label If you are unsure of the output voltage of your AC mains please consult your electrician 3 8 Startup Procedure Use the following procedure when first turning on your amplifier 1 Turn down the level of your audio source 2 Turn down the Level controls of the amplifier 3 Turn on the Power switch The Enable indica tor next to the Power switch should glow 4 Turn up the level of your audio source to an optimum level 5 Turn up the Level controls on the amplifier until the desired loudness or power level is achieved 6 Turn down the level of your audio source to its normal range If you ever need to make any wiring or installa tion changes don t forget to disconnect the power cord For help with determining your system s opti mum gain structure signal levels please refer to the Crown Amplifier Application Guide available online at www crownaudio com 4 Operation 4 1 Precautions Your amplifier is protected from internal and external faults but you should still take the fol lowing prec
17. cordance with the manufacturer s instruc tions Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Do not defeat the safety purpose of the polar ized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Use only with a cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus com bination to avoid injury from tip over Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service person nel Servicing is required when the apparatus has been damaged in any way such as 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 X 15 WARN
18. erence by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Operation Manual K Series Power Amplifiers CcCrouupn Crown International Inc DECLARATION of CONFORMITY TCF Technical Certificate No C974CRI1 ABS Technical Construction File Route Issued By Crown International Inc FOR COMPLIANCE QUESTIONS ONLY Sue Whitfield 1718 W Mishawaka Road 574 294 8289 Elkhart Indiana 46517 U S A swhitfield crownintl com Competent Body s Name and Address European Representative s Name and Address Technology International Europe Limited Nick Owen 41 42 Shrivenham Hundred Business Park 35 Bassets Field Shrivenham Swindon Wilts SN6 8TZ Thornhill Cardiff South Glamorgen Equipment Type Commercial Audio Power Amplifiers CF14 9UG United Kingdom Family Name K1 K2 Model Names K1TETACE K1E17CE K1E34CE K2E14CE K2E17CE EMC Standards EN 55103 1 1995 Electromagnetic Compatibility Product Family Standard for Audio Video Audio Visual and Entertainment Lighting Control Apparatus for Professional Use Part 1 Emissions EN 55103 1 1995 Magnetic Field Emissions Annex A 10 cm and 1 M EN 61000 3 2 1995 A14 2000 Limits for Harmonic Current Emiss
19. ers 9 Warranty Operation Manual SUMMARY OF WARRANTY Crown International 1718 West Mishawaka Road Elkhart Indiana 46517 4095 U S A warrants to you the ORIGINAL PURCHASER and ANY SUB SEQUENT OWNER of each NEW Crown product for a period of three 3 years from the date of purchase by the original purchaser the warranty period that the new Crown product is free of defects in materials and workmanship We further warrant the new Crown product regardless of the reason for failure except as excluded in this War ranty ITEMS EXCLUDED FROM THIS CROWN WARRANTY This Crown Warranty is in effect only for failure of a new Crown product which occurred within the Warranty Period It does not cover any product which has been damaged because of any inten tional misuse accident negligence or loss which is covered under any of your insurance contracts This Crown Warranty also does not extend to the new Crown product if the serial number has been defaced altered or removed WHAT THE WARRANTOR WILL DO We will remedy any defect regardless of the rea son for failure except as excluded by repair replacement or refund We may not elect refund unless you agree or unless we are unable to pro vide replacement and repair is not practical or cannot be timely made If a refund is elected then you must make the defective or malfunctioning product available to us free and clear of all liens or other encumbrances The refu
20. f authorized service centers To obtain service simply present the bill of sale as proof of purchase along with the defective unit to an authorized service center They will handle the necessary paperwork and repair Remember to transport your unit in the original factory pack 8 2 US Service Service may be obtained in one of two ways from an authorized service center or from the factory You may choose either It is important that you have your copy of the bill of sale as your proof of purchase 8 2 1 Service at a US Service Center This method usually saves the most time and effort Sim ply present your bill of sale along with the defective unit to an authorized service center to obtain service They will handle the necessary paperwork and repair Remem ber to transport the unit in the original factory pack A list of authorized service centers in your area can be obtained from Crown Factory Service or online from http www crownaudio com support servcent htm page 16 8 2 2 Factory Service Crown accepts no responsibility for non serviceable product that is sent to us for factory repair It is the owner s responsibility to ensure that their product is ser viceable prior to sending it to the factory Serviceable product list is available at http crownweb crownintl com crownrma For more information please contact us direct A Service Return Authorization SRA is required for product being sent to the factory for re
21. fiers are sophisticated pieces of engineering capable of producing extremely high power levels They must be treated with respect and correctly installed if they are to provide the many years of reliable service for which they were designed In addition the K Series amplifiers include a number of features which require some expla nation before they can be used to their maxi mum advantage Please take the time to study this manual so that you can obtain the best possible service from your amplifier 1 1 Features e Accurate uncolored sound with very low distortion e High damping factor for tight clean bass response e Advanced design for energy conservation Versatile handling a wide range of speaker impedances and outputs Switchable input sensitivity Soft Start feature prevents the amplifier from drawing large currents when it is first turned on Can be mounted in standard 19 inch 48 3 cm rack Uniquely molded cast aluminum front panel provides exceptional air circulation Exclusive BCA Balanced Current Amplifier power design provides high efficiency for quiet fan free operation Advanced protection circuitry guards against shorted outputs open circuits DC mismatched loads general overheating high frequency overloads and internal faults Mono mode switches allow you to set up your amps speakers in the configuration that best suits your needs with combined amp inputs combined
22. ielded devices that are located nearby The field is strongest just above and below the unit If an equipment rack is used we recommend locat ing the amplifier s in the bottom of the rack and the preamplifier or other sensitive equipment at the top operation FCC COMPLIANCE NOTICE This device complies with part 15 of the FCC rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired CAUTION Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications However there is no guarantee that interference will not occur ina particular installation If this equipment does cause harmful interference to radio or televi sion reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interf
23. ilable to us free and clear of all liens or other encumbrances The refund will be equal to the actual purchase price not including inter est insurance closing costs and other finance charges less a reasonable depreciation on the product from the date of original purchase War ranty work can only be performed at our autho rized service centers We will remedy the defect and ship the product from the service center within a reasonable time after receipt of the defec tive product at our authorized service center HOW TO OBTAIN WARRANTY SERVICE You must notify your local Crown importer of your need for warranty service within the warranty period All components must be shipped in the original box Corrective action will be taken within a reasonable time of the date of receipt of the defective product by our authorized service center If the repairs made by our authorized service cen ter are not satisfactory notify our authorized ser vice center immediately DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES YOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGES RESULTING FROM ANY DEFECT IN THE NEW CROWN PRODUCT THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULTING FROM SUCH A DEFECT WARRANTY ALTERATIONS No person has the authority to enlarge amend or modify this Crown Warranty This Crown Warranty is not extended by the length of time which you are deprived of the use of the new Crown product Repair
24. ility for damaged goods and or accessories that are sent with your unit 1 Fill out and include the Crown Audio Factory Ser vice Information sheet in the back of this manual 2 Do not ship any accessories manuals cords hard ware etc with your unit These items are not needed to service your product We will not be responsibility for these items 3 When shipping your Crown product it is important that it has adequate protection We recommend you use the original pack material when returning the product for repair If you do not have the original box please call Crown at 800 342 6939 or 574 294 8210 and order new pack material See instructions for foam in place shipping pack Do not ship your unit in a wood or metal cabinet 4 If you provide your own shipping pack the mini mum recommended requirements for materials are as follows a 275 P S I burst test Double Wall carton that allows for 2 inch solid Styrofoam on all six sides of unit or 3 inches of plastic bubble wrap on all six sides of unit b Securely seal the package with an adequate carton Sealing tape c Do not use light boxes or peanuts Damage caused by poor packaging will not be covered under war ranty Using your foam in place shipping pack Note The foam in place packing is molded so that there is only one correct position for your product 1 Open carton and lift center cushion leaving both end cushions in place 2 Carefu
25. ions equipment input current 16A per phase EN 61000 3 3 1995 Limitation of Voltage Fluctuations and Flicker in Low Voltage Supply Systems Rated Current 16A EN 55022 1992 A1 1995 amp A2 1997 Limits and Methods of Measurement of Radio Disturbance Characteristics of ITE Radiated Class B Limits Conducted Class B EN 55103 2 1996 Electromagnetic Compatibility Product Family Standard for Audio Video Audio Visual and Entertainment Lighting Control Apparatus for Professional Use Part 2 Immunity EN 61000 4 2 1995 Electrostatic Discharge Immunity Environment E2 Criteria B 4k V Contact 8k V Air Discharge EN 61000 4 3 1996 Radiated Radio Frequency Electromagnetic Immunity Environment E2 criteria A EN 61000 4 4 1995 Electrical Fast Transient Burst Immunity Criteria B EN 61000 4 5 1995 Surge Immunity Criteria B EN 61000 4 6 1996 Immunity to Conducted Disturbances Induced by Radio Frequency Fields Criteria A EN 61000 4 11 1994 Voltage Dips Short Interruptions and Voltage Variation Safety Standard EN 60065 1998 Safety Requirements Audio Video and Similar Electronic Apparatus certify that the product identified above conforms to the requirements of the EMC Council Directive 89 336 EEC as amended by 92 31 EEC and the Low Voltage Directive 73 23 EES as amended by 93 68 EEC Signed paaa ia Larry Coburn Title Senior Vice President of Manufacturing Date of Issue March 28 2000 Operation Manual DUE TO LINE CURRENT HARMONI
26. lifiers page 8 3 6 2 Set Input Sensitivity Set the Input Sensitivity switches of each chan nel to the desired setting see Figure 3 7 Two choices are available 1 4V for full rated output 33 dB gain or a fixed voltage gain of 26 dB CH 1 INPUTS INPUT SENSITIVITY 14V 26dB Figure 3 7 Input Sensitivity Switch 3 6 3 Stereo Mode See Figure 3 8 INPUTS Connect input wiring to both channels OUTPUTS Maintain proper polarity on output connectors Connect Channel 1 positive speaker load to Channel 1 positive terminal of amp repeat for negative Repeat Channel 2 wiring as for Channel 1 3 6 4 Bridge Mono Mode See Figure 3 9 Use this configuration if you want to give up stereo capabilities in order to drive your speak ers louder On the back panel set the Bridge Output switch ON INPUTS Connect input wiring to Channel 1 only OUTPUTS Connect the speaker across the posi tive terminals of each channel Do not use the negative terminals black binding posts when the amp is being operated in Bridge Mono mode NOTE The Channel 2 level control should be set fully counter clockwise when oper ating the amplifier in Bridge Mono mode K Series Power Amplifiers INPUT BRIDGE v INPUT INPUT Figure 3 8 SENSITIVIT OUTPUT SENSITIVIT m 2 m Stereo Wiring 14V 26dB ON OFF ON OFF 14V_ 26dB Stereo Inputs Stereo Output to Speakers
27. lly place your product with the product s front panel facing the same direction as arrows indicate K Series Power Amplifiers 3 Reset center cushion down over top of product s chassis The foam in place packing was molded to accommodate different chassis depth sizes If your product s chassis does not completely fill the foam in place cavity you may use a soft but solid packing material such as paper or bubble wrap behind the chassis 4 Enclosethe completed Crown Audio Factory Service Information form or securely attach it to the outside of carton and re seal the shipping pack with a sturdy carton sealing tape 8 2 5 Estimate Approval Approval of estimate must be given within 90 days after being notified by Crown Audio Inc Units still in the pos Session of Crown after 90 days of the estimate will become the property of Crown Audio Inc 8 2 6 Payment of Non Warranty Repairs Payment on out of warranty repairs must be received within 90 days of the repair date Units unclaimed after 90 days become the property of Crown Audio Inc If you have any questions please contact Crown Factory Service Crown Factory Service 1718 W Mishawaka Rd Elkhart Indiana 46517 U S A Telephone 574 294 8200 800 342 6939 North America Puerto Rico and Virgin Islands only Facsimile 574 294 8301 Technical Support 574 294 8124 Factory Service Internet http www crownaudio com Operation Manual K Series Power Amplifi
28. nd will be equal to the actual purchase price not including inter UNITED STATES amp CANADA est insurance closing costs and other finance charges less a reasonable depreciation on the product from the date of original purchase War ranty work can only be performed at our autho rized service centers or at the factory Warranty work for some products can only be performed at our factory We will remedy the defect and ship the product from the service center or our factory within a reasonable time after receipt of the defec tive product at our authorized service center or our factory All expenses in remedying the defect including surface shipping costs in the United States will be borne by us You must bear the expense of shipping the product between any for eign country and the port of entry in the United States including the return shipment and all taxes duties and other customs fees for such for eign shipments HOW TO OBTAIN WARRANTY SERVICE You must notify us of your need for warranty ser vice within the warranty period All components must be shipped in a factory pack which if needed may be obtained from us free of charge Corrective action will be taken within a reason able time of the date of receipt of the defective product by us or our authorized service center If the repairs made by us or our authorized service center are not satisfactory notify us or our autho rized service center immediately
29. nected in stereo one load per channel or in bridge mono one load across the positive terminals of both channels When using bridge mono mode be sure to set the Bridge Output switch to ON See Sections 3 6 3 and 3 6 4 for details OUTPUT WIRING OUTPUTS CH 2 CH 1 Operation Manual K Series Power Amplifiers 5 Advanced Features Operation Manual NOTE For detailed information about these Crown amplifier features please consult the Crown Amplifier Application Guide available on the Crown website at www crownaudio com 5 1 Protection Systems Your Crown amplifier provides extensive protection systems including protection against shorted outputs open circuits DC mismatched loads general overheating high frequency over loads and internal faults 5 1 1 TLC If the amplifier starts to overheat the thermal level control system will subtly and dynamically reduce the gain as needed Trans former overheating extremely unlikely will result in a temporary shutdown When the amplifier has cooled to a safe temperature the transformer will automatically reset itself 5 1 2 Out of band Filtering An 8 Hz high pass filter protects the amplifier and loads from subsonic frequencies A 30 kHz low pass filter offers protection from ultrasonic frequencies 5 1 3 Inrush Limiting The soft start feature prevents the amplifier from drawing a large inrush current when it is first turned on 5 1 4 Fu
30. ng cables Rack for mounting amplifier or a stable surface for stacking WARNING Before you start to set up your amplifier make sure you read and observe the Important Safety Instruc tions found at the beginning of this manual e I 19 in 3 2 Install Your Amplifier CAUTION Before you begin make sure your amplifier is disconnected from the power source with power switch in the off position and all level controls turned completely down counterclock wise Use a standard 19 inch 48 3 cm equipment rack See Figure 3 1 for amplifier dimensions You may also stack amps without using a cabi net NOTE When transporting amplifiers should be supported at both front and back This amplifier has been furnished with a convenient 2 foot long AC power cord To meet system compliance this cord must be plugged into a local rack mounted commercial grade electrical outlet box Extension cords are not to be used 48 3 cm 0 875 in 2 2 cm I 17 in 43 2 cm Figure 3 1 Dimensions K Series Power Amplifiers 3 3 Ensure Proper Cooling The K Series amplifier is convection cooled and uses no fan If ambient temperatures are high the TLC indicators may start to illuminate showing that the amplifier is becoming hot To prevent this space the amplifiers in the rack allowing the top and bottom covers to act as radiators Figure 3 2 In extreme conditions add fans to direct air onto any surface
31. nnector Wiring Se OUTRUTS CH 2 CH 1 Figure 3 5 Output Connector Wiring crown page 7 crown 3 Setup 3 6 Set Up and Wire Your System First turn down the Level controls fully coun terclockwise and turn off the amplifier 3 6 1 Set the Mono Modes Switches To run in Stereo Mode On the back panel set the Bridge Output switch and the Y Input switch OFF Figure 3 6 MONO MODES BRIDGE uyn output Y INPUT ON OFF ON OFF Figure 3 6 Mono Modes Switches If you want to give up stereo capabilities in order to drive your speakers louder set the Bridge Out put switch to ON Then a single input will feed a single output with twice the voltage of stereo mode You might use this configuration if you are running a distributed sound system from the K Series amp If you want to feed a mono audio signal to two channels each with its own level control set the Y Input switch ON This connects both inputs in parallel You might use this setup if you re running a monitor speaker on one channel and a main speakers stack on the other channel and you want to feed them the same signal If you want daisy chained inputs fed to a double voltage output set the Bridge Output switch ON and the Y Input switch ON For example con nect the input signal to the CH 1 XLR connector and use the CH 2 XLR connector plus the two 1 4 inch phone jacks for daisy chained outputs that feed other power amp
32. pair An SRA can be completed online at www crownaudio com support factserv htm If you do not have access to the web please call Crown s Customer Service at 574 294 8200 or 800 342 6939 extension 8205 For warranty service we will pay for ground shipping both ways in the United States Contact Crown Customer Service to obtain prepaid shipping labels prior to send ing the unit Or if you prefer you may prepay the cost of shipping and Crown will reimburse you Send copies of the shipping receipts to Crown to receive reimbursement Your repaired unit will be returned via UPS ground Please contact us if other arrangements are required 8 2 3 Factory Service Shipping Instruc tions 1 Service Return Authorization SRA is required for product being sent to the factory for service Please complete the SRA by going to www crownaudio com support factserv htm If you do not have access to our website call 1 800 342 6939 extension 8205 and we ll create the SRA for you 2 See packing instructions that follow 3 Ship product to CROWN AUDIO FACTORY SERVICE 1718 W MISHAWKA RD ELKHART IN 46517 4 Usea bold black marker and write the SRA number on three sides of the box 5 Record the SRA number for future reference The SRA number can be used to check the repair status 8 2 4 Packing Instructions Important These instructions must be followed If they are not followed Crown Audio Inc assumes no respon sib
33. r glows brightly POSSIBLE REASON e The amplifier is protecting itself with the thermal level control system Turn ona fan or turn down the level controls Key CX Li Q ott Flashing Lit Flashing Off Operation Manual K Series Power Amplifiers crown 7 Specifications Minimum Guaranteed Power K1 K2 120 VAC 60 Hz Units Stereo mode per channel both channels driven 1 kHz with 0 196 THD Stereo 2 ohms per ch 750W 1 250W Stereo 4 ohms per ch 550W 800W Stereo 8 ohms per ch 350W 500W 120 VAC 60 Hz Units Bridge mono mode 1 kHz with 0 1 THD 4 ohms 1 500W 2 500W Performance K1 K2 Frequency Response at 1 watt 20 Hz 20 kHz 0 25 dB 0 25 dB Signal to Noise Ratio below rated power 20 Hz to 20 kHz gt 100 dB 100 dB Damping Factor 10 Hz to 400 Hz 3000 3000 Crosstalk below rated power 20 Hz to 1 kHz gt 60 dB 60 dB DC output offset x10 millivolts x10 millivolts Controlled Slew Rate 13 volts ms 13 volts ms Input Impedance nominally balanced nominally unbalanced 20 k ohms 10 k ohms 20 k ohms 10 k ohms Load Impedance Note Safe with all types of loads Stereo 2 8 ohms 2 8 ohms Bridge Mono 4 ohms 4 ohms Voltage Gain at maximum level setting 1 4V sensitivity 31 5 dB 33 1 dB 26 dB 26 dB 26 dB gain Required AC Mains 50 60 Hz 100 250 VAC 10 15 50 60 Hz 100 250 VAC 10 15
34. s 4 Operation 4 2 Front Panel Controls and Indicators Figure 4 1 below points out the controls indi cators and connectors on the front panel of the K Series amplifiers The K1 and K2 look identi cal except for product nameplates and fuse specifications A Level Controls The Level controls one per channel adjust the input attenuation from 0 dB to 100 dB B Indicators Figure 4 2 shows a close up view of the indica tor LEDs 4 per channel TLC The TLC thermal level control indicators turn on with a dim glow a little before the amplifier needs help dissipating heat Thi forewarning gives you a chance to turn on a fan or other auxiliary cooling if available or turn down the level controls of the amplifier If you do neither the amplifier will automatically D crouJnN K2 BALANCED CURRENT AMPLIFIER begin to protect itself with its TLC protection system by subtly and dynamically reducing the gain as needed The TLC indicators gradually turn brighter as the TLC protection becomes greater Clip Turns on when distortion becomes audi ble in the amplifier output 10C The yellow Input Output Comparator indicators turn on when distortion reaches 0 05 which is well before the distortion is audible Signal The green Signal indicators flash dimly when a very low level signal as low as 10 mW is present in the output They flash brightly when a louder signal at least 1 watt is present at the output
35. s and replacement parts provided under the terms of this Crown Warranty shall carry only the unexpired portion of this Crown Warranty DESIGN CHANGES We reserve the right to change the design of any product from time to time without notice and with no obligation to make corresponding changes in products previously manufactured LEGAL REMEDIES OF PURCHASER No action to enforce this Crown Warranty shall be commenced after expiration of the warranty period THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERS CONTAINED IN THIS MANUAL FOR CROWN PRODUCTS 7 01 Operation Manual K Series Power Amplifiers Crown Audio Factory Service Information Shipping Address Crown Audio Factory Service 1718 W Mishawaka Rd Elkhart IN 46517 crown PLEASE PRINT CLEARLY Serial Number Purchase Date SRA If sending product to Crown factory service Model PRODUCT RETURN INFORMATION Individual or Business Name Phone Fax E Mail Street Address please no P O Boxes City State Prov Postal Code Country Nature of problem Other equipment in your system If warranty is expired please provide method of payment Proof of purchase may be required to validate warranty PAYMENT OPTIONS COD have open account payment terms Purchase order required PO Credit card information
36. se A fuse is provided to protect the power supplies from excess cur rent It is located on the back panel below the power cord K Series amplifiers that are configured to use 100 120 VAC power should use the following fuses K2 20 amp fuse K1 15 amp fuse K Series amplifiers that are configured to use 200 250 VAC should use the following fuses K2 10 amp fuse K1 8 amp fuse crown 5 2 Advanced Features BCA Balanced Current Amplifier technology allows high levels of power output without all the associated heat found in a conventional amplifier This highly efficient design works without using a cooling fan Accurate uncolored sound with very low distortion High damping factor for tight clean bass response Advanced design for energy conservation Versatile handling a wide range of speaker impedances and outputs Switchable input sensitivity Soft Start feature prevents the amplifier from drawing large currents when it is first turned on Can be mounted in standard 19 inch 48 3 cm rack Uniquely molded cast aluminum front panel provides exceptional air circulation Advanced protection circuitry guards against shorted out puts open circuits DC mismatched loads general over heating high frequency overloads and internal faults Mono mode switches allow you to set up your amps speak ers in the configuration that best suits your needs with combined amp inputs combined amp outputs or both
37. u want to feed a mono audio signal to two channels each with its own level control set the Y Input switch ON This connects both inputs in parallel You might use this setup if you re running a monitor speaker on one chan nel and a main speakers stack on the other channel and you want to feed them the same signal See Figure 3 10 INPUTS Connect input wiring to one channel OUTPUTS Maintain proper polarity on output connectors Connect Channel 1 positive speaker load to Channel 1 positive terminal of amp repeat for negative Repeat Channel 2 wiring as for Channel 1 3 6 6 Y Mono Input to Bridge Mono Output If you want daisy chained inputs fed to a dou ble voltage output set the Bridge Output switch ON and the Y Input switch ON See Figure 3 11 For example connect the input signal to the CH 1 XLR connector and use the CH 2 XLR connector plus the two 1 4 inch phone jacks for daisy chained outputs that feed other power amplifiers NOTE Crown provides a reference of wiring pin assignments for commonly used connector types in the Crown Amplifier Application Guide available on the web at www crownaudio com page 9 Curouim 3 Setup page 10 3 7 Connect to AC Mains Connect your amplifier s power cord to the AC mains power source power outlet WARNING The third prong of this con nector ground is an important safety feature Do not attempt to disable this ground connection
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