Crown Audio MA-5002VZ User's Manual
Contents
1. or the output is shorted Z N 4 N O p a 2 a p OFF NORMAL FULL ON ON ON ON GREEN RED Operation Manual page 17 e Al MA 5002VZ Power Amplifier 7 Specifications Minimum Guaranteed Power see page 20 for complete power specifications 120 VAC 60 Hz Units Stereo mode per channel both channels driven 1 kHz with 0 1 THD Stereo 2 ohms per ch 2 500 stereo 4 ohms per ch 2 000 stereo 8 ohms per ch 1 300 120 VAC 60 Hz Units Bridge Mono mode 1 kHz with 0 1 THD 4 ohms 5 000 8 ohms 4 000 16 ohms 2 000 120 VAC 60 Hz Units Parallel Mono mode 1 kHz with 0 1 THD 1 ohm 5 000 2 ohms 3 700 4 ohms 2 600 Performance Frequency Response at 1 watt 20Hz 20 kHz see Figure 7 3 0 1 dB Phase Response at 1 watt 10Hz 20 kHz see Figure 7 6 10 Signal to Noise Ratio below full bandwidth power 20 Hz to 20 kHz gt 100 dB A weighted gt 105 dB Total Harmonic Distortion THD at rated power true THD lt 0 05 Intermodulation Distortion IMD 60 Hz and 7 kHz at 4 1 from rated power to 35 dB below rated power at 8 ohms lt 0 05 Damping Factor 10 Hz to 400 Hz See Figure 7 4 gt 1000 Controlled Slew Rate gt 30 volts us Crosstalk See Figure 7 7 input Impedance nominally balanced nominally unbalanced 20 k ohms 10 k ohms page 18 Operation Manual MA 5002VZ Power Amplifier CIODOUIJII 7 Specifications continued Performance continued Output2. Macro Tech 5002VZ is the most advanced amplifier to offer Crown s pat ented Variable Impedance VZ power supply technology New semiconductor technology is combined with superior VZ power supplies to enable the Macro Tech 5002VZ to pack unprec edented power levels into 5 inches 13 3 cm of vertical rack space The Macro Tech 5002VZ also features enhanced P P2 compatibility for access to custom input modules and because its a Macro Tech you have the added benefit of ODEP protection to keep the show going long after other amplifiers would fail Modern power amplifiers 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 MA 5002VZ amplifier includes 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 Grounded Bridge design delivers large voltage swings without stressing output transistors resulting in lower distortion and superior reliability Patented ODEP Output Device Emulation Protection circuitry compensates for overheating and overload to keep the amplifier working when others would fail 0C Input Output Comparator ci
3. 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 10 variation above or below the amplifier s specified line voltage and within the specfied frequency requirements indicated on the amplifiers 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 onthe Enable switch The Enable indicator should glow 4 Turn up the level of your audio source to an opti mum 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 instal lation changes don t forget to turn off the amplifier and 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 LI OUIII 4 Operation 4 1 Precautions Your Macro Tech Series amplifier is protected from internal and external faults but you should still take the following precautions for optimum performance and safety 1 Before
4. both channels 2310 3220 1530 2100 1940 1510 driven driven 1440 1760 1330 1270 870 6400 6605 4815 5750 5320 4815 Bridge Mono balanced output 5035 6780 3135 4455 4070 3100 3000 3695 2770 2670 1815 6765 6925 4550 5925 5285 4505 Parallel Mono Parallel Mono 5005 6740 2975 4425 4045 2975 3025 3660 2770 2670 1795 Stereo 3040 3085 2060 2870 2415 2040 r both channels 2380 3305 1280 2080 1895 1280 orem 1470 1800 1340 1265 740 Bridge Mono balanced output 120 VAC 60 Hz 120 VAC 60 Hz Stereo both channels driven Bridge Mono balanced output 6030 6125 3985 5935 4845 3945 Bridge Mono 4820 6670 2540 4255 3805 2540 balanced output 2940 3620 2740 2545 1485 6300 6455 4090 5705 4865 4050 Parallel Mono 4785 6615 2560 4310 3820 2560 2990 3595 2685 2565 1515 2930 3000 2125 2905 2545 2125 Stereo both channels 2380 3205 1300 2210 1925 1300 amet 1425 1740 1365 1270 740 6060 6155 4155 6060 5310 4155 Bridge Mono 5065 6695 2615 4615 4060 2615 balanced output 2995 3655 2865 2665 1535 6250 6450 4345 6145 5275 4305 Parallel Mono 2 4930 6635 2690 4485 4025 2690 3025 3630 2795 2670 1560 Figure 7 1 Minimum Power Matrix Figure 7 2 Maximum Power Matrix 100 VAC 50 Hz Parallel Mono Stereo both channels driven Bridge Mono balanced output 1 Parallel Mono 2 4 page 20 Operation Manual MA 5002VZ Power Amplifie
5. 11 e Al MA 5002VZ Power Amplifier 4 Operation continued A Dust Filter Removes large particles from the air at the air intake The filter elements can be easily removed for cleaning by gently pulling them away from the front panel Filters can be cleaned by soaking in a mild detergent and water Level Control Rotary detented level control one per channel ILoad ILimit Indicator Dual color LED one per channel Indicator is off when there is no significant load cur rent extremely low or no input signal or no load connected to the channel s out put illuminates green to indicate that load 4 2 Front Panel Controls current is flowing and illuminates red if and Indicators the amplifier has reached its maximum output current capacity See Section 5 2 3 for more about Load ILimit Signal lOC Indicator Green LED one per channel Dual pur pose indicator illuminates to indicate the presence of input signals flashes brightly with a 0 1 second hold delay to indicate a difference distortion between the input and output signal of 0 05 or greater and flashes brightly with a 0 5 second hold delay to indicate input clipping distortion see Section 5 1 2 for more about IOC ODEP Indicator Amber LED one per channel illuminates brightly to indicate presence of thermody namic energy They dim proportionally as energy reserves decrease In the event that energy reserves are depleted the indica tors t
6. Impedance See Figure 7 5 Load Impedance Note Safe with all types of loads Stereo 2 8 ohms Bridge Mono 4 16 ohms Parallel Mono 1 4 ohms Voltage Gain 8 ohm load rated output at 1 kHz maximum level setting 0 775V sensitivity 132 1 6 or 42 dB 0 5 dB 1 4V sensitivity 71 1 6 or 37 dB 0 5 dB 26 dB sensitivity 20 1 6 or 26 dB 0 5 dB Required AC Mains 50 or 60 Hz 100 120 208 230 240 VAC 10 Power Draw at Idle 90 watts or less Construction Cooling Internal heat sinks with on demand proportional forced air cooling controlled by ODEP Includes custom heat diffusers and patented circuitry to promote uniform dissipation Dimensions Width EIA Standard 19 inch rack mount EIA RS 310 B Height 5 25 inch 13 3 cm Depth behind mounting surface 15 875 inch 40 3 cm Weight Center of gravity is 6 inches 15 2 cm behind the front mounting surface Net 77 pounds 9 ounces 35 2 kg Shipping 88 pounds 10 ounces 40 2 kg Operation Manual page 19 CIOUIJII MA 5002VZ Power Amplifier 7 Specifications continued Macro Tech 5002VZ Minimum Guaranteed Power Watts Macro Tech 5002VZ Maximum Power Watts Maximum Average FTC Continuous Average Stereo Mono At0 1 THD At0 1 THD At 0 05 THD At 0 1 THD Mode Single Cycle Tone Burst 40 Millisecond Tone Burst Stereo Mono At less than 0 05 THD At 0 05 THD Mode 1 kHz 20Hz 20kHz Stereo Stereo 3070 3195 2460 2825 2505 2440 both channels
7. continued 0 PIP2 Module Standard module PIP2 FXQ provides a 3 pin female XLR connector and a female TRS jack for signal input to each channel P TRS Input Jack Standard PIP2 Module One per channel female TRS input jacks are provided page 14 Figure 4 3 Output Cover PIP2 COMPATIBLE MA 5002VZ Power Amplifier XLR Inputs Standard PIP2 Module One per channel female XLR input con nectors are provided Ground Lift Switch Standard PIP2 Module Isolates the input signal grounds from the AC chassis ground to help prevent ground loops DR CUTEUT E amp Figure 4 4 International Output Binding Posts Operation Manual MA 5002VZ Power Amplifier 5 Advanced Features and Options 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 and diagnostic capabilities including ODEP and IOC 5 1 1 Output Device Emulation Protection ODEP Crown invented ODEP to solve two long standing prob lems in amplifier design To prevent amplifier shutdown during demanding operation and to increase the efficiency of output circuitry To do this Crown established a rigorous program to measure the safe operating area SOA of each output tran sistor be
8. ft 10 gauge 101 150 ft 8 gauge 151 250 ft 6 gauge CAUTION Never use shielded cable for output wiring page 8 Operation Manual MA 5002VZ Power Amplifier 3 Setup continued 3 6 Wire Your System 3 6 1 Stereo Mode Typical input and output wiring is shown in Figure 3 6 INPUTS Connect input wiring for each channel Refer to Section 3 4 for input connector pin assignments OUTPUTS Maintain proper polarity on output connectors Connect positive speaker lead to Channel 1 positive output of amp connect negative speaker lead to Channel 1 negative output of amp Repeat for Channel 2 Refer to Section 3 5 for output connector pin assignments Make sure the Mode switch is set to the Stereo posi tion when operating in Stereo mode 3 6 2 Bridge Mono Mode Typical input and output wiring is shown in Figure 3 7 INPUTS Connect input wiring to Channel 1 Refer to Section 3 4 for input connector pin assignments OUTPUTS Connect positive speaker lead to Channel 1 positive output of amp connect nega tive speaker lead to Channel 2 positive output of amp Do not use the negative outputs when operating in Bridge Mono mode Refer to Section 3 5 for output connector pin assign ments Make sure the Mode switch is set to the Bridge position when operating in Bridge Mono mode NOTE Turn down full CCW the Channel 2 level control when operating in Bridge Mono mode as the lower nu
9. is used to register your product it may be mailed or faxed Crown International Fax 574 294 8329 1718 W Mishawaka Rd Elkhart IN 46517 Please note that some information is required Incomplete registrations will not be processed Indicates required information OWNER S INFORMATION PLEASE PRINT First name Middle initial ____ Last name Company Mailing address City State Zip Code Country E mail address Phone include area code Fax PRODUCT INFORMATION MODEL SERIAL PURCHASE DATE ie MA3600VZ CE1000A PCC160 mo day yr es See eee a sas ANI o o A OO SON S Product purchased from City State Comments 1718 W Mishawaka Rd crown page 25 ef Anal MA 5002VZ Power Amplifier THIS PAGE INTENTIONALLY LEFT BLANK page 26 Operation Manual MA 5002VZ Power Amplifier Crow Crown Audio Factory Service Information shipping Address Crown Audio Factory Service 1718 W Mishawaka Rd Elkhart IN 46517 PLEASE PRINT CLEARLY SRA If sending product to Crown factory service Model serial Number Purchase Date PRODUCT RETURN INFORMATION Individual or Business Name If warranty is expired please provide method of payment Proof of purchase may be required to validate warranty PAYMENT OPTIONS have open account payment terms Purchase orderrequired PO _ _ _ o o o o Y Y S SOE S D COD Credit Card Information below is required howeve
10. service centers in your area can be obtained from Crown Factory Service or online from http www crownaudio com support servcent htm page 22 A 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 repair 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 crownaud
11. transport the unit Never ship the unit without the factory pack YOU WILL NEED not supplied e Input wiring cables e Output wiring 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 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 crown Wal g e DRE z 5 25 in 13 3 cm j SIDE VIEW 15 875 in 2 875 in 40 3 cm 7 3 cm 17 75 in 45 1 cm Figure 3 1 Dimensions MA 5002VZ Power Amplifier 3 3 Ensure Proper Cooling When using an equipment rack mount units directly on top of each other Close any open spaces in rack with blank panels DO NOT block front or rear air vents The side walls of the rack should be a minimum of two inches 5 1 cm away from the amplifier sides and the back of the rack should be a m
12. use your amplifier first must be con figured for proper operation including input and output wiring hookup Improper wiring can result in serious operating difficulties For information on wiring and configura tion please consult the Setup section of this manual or for advanced setup techniques consult Crown s Amplifier Application Guide available online at www crownau dio com 2 Use care when making connections select ing signal sources and controlling the out put 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 Elec trical shock may result 5 Tampering with the circuitry or making unauthorized circuit changes may be haz ardous and invalidates all agency listings 6 Do not operate the amplifier with the Signal IOC LEDs constantly flashing 7 Donot overdrive the mixer which will cause a clipped signal to be sent to the amplifier Such signals will be reproduced with extreme accuracy and loudspeaker damage may result 8 Never operate the amplifier with less than the rated load impedance Due to the ampli fier s output protection such a configuration may result in premature clipping and speaker damage Remember Crown is not liable for damage that results from overdriving other system compo nents A page
13. 23 EES as amended by 93 68 EEC Signed De PA Larry Coburn Title Senior Vice President of Manufacturing Date of Issue March 28 2000 Operation Manual Due to line current harmonics we recommend that you contact your supply authority before connection page 3 crown Table of Contents page 4 Important Safety Instructions occ eee Declaration Of Conformity 0 0 cccccssessssssssesssssssssessssssssssesssesesssenssece 1 WEIGONIG se ostatec naintat ari pai 3 1 Unpack Your Amplifier sosite art na ti aaa ta 3 2 Install Your Amplifier ss nada a aaa 3 3 Ensure Proper Cooling cioaca aaa a ra 3 4 Choose Input Wire and Connectors n 3 5 Choose Output Wire and Connectors oo ccc eee 3 6 Wire Your System cecen e et e a t 3 6 1 Stereo Mode muu eee eee eee eee ceea aaa a 3 6 2 Bridge Mono Mode eee 3 6 3 Parallel Mono Mode iseer 3 7 Connect io AC Main voces eee eee e eee aaa e eee 3 0 Stalitiipp PODECILINE asc ostatic aa dai 4 Operation RSR IRI RR e RR RPR RIES IP E REX 4 1 PRECAUTIONS ns ui octet inta a tt 4 2 Front Panel Controls and Indicators oo cece 4 3 Back Panel Controls and Connectors u MA 5002VZ Power Amplifier 5 Advanced Features and Options 00e0000 15 5 1 Protection SV SUCIIS stiti at n i tt i 15 5 1 2 Output Device Emulation Protection ODEP 15 5 1 3 10C Input Output Comparator oo ccc 15 9 ZCG DESIONS cisini miira i 15 5 2 1 Grounded Br
14. 8 crown Operation Manual Macro Tech Series migelitia 7 YA oos MACrO TECH 5002v2 PER D 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 Note 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 Grounded Bridge PIP and PIP2 are trademarks and Amcron Crown Crown Audio 10C VZ and ODEP are regis tered trademarks and Qwic is a trademark of Crown International Other trademarks are the property of their respective owners Some models may be exported under the name Amcron 2006 by Crown Audio Inc 1718 W Mishawaka Rd Elkhart Indiana 46517 9439 U S A Telephone 574 294 8000 H A Harman International Company MA 95002VZ 128313 6 9 06 LIOUIII Important Safety Instructions Importantes Instructions de S curit page 2 A OO Ol PB O PO SSD aa a a SS Co 16 Read the
15. RICO DESCONECTE EL CABLE DE ALI MENTACION DE LA TOMA DE CA LAS PATAS DEL CONEC TOR DEL CABLE DE ALIMENTACION DEBERAN MANTENERSE EN BUEN ESTADO 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 instructions REGARDEZ CES SYMBOLES La triangle avec le sigle foudre est employ e pour alerter l utilisateur au risque de d charge lectrique Le triangle avec un point d exclamation est employ e pour alerter l utilisateur d instruction importantes pour lors op rations de mainte nance ATENCION CON ESTOS S MBOLOS El tri ngulo con el s mbolo de rayo el ctrico es usado para alertar al usuario de el riesgo de un choque el ctrico El tri ngulo con el signo de admiraci n es usado para alertar al usuario de instrucciones importantes de operaci n o man tenimiento A gt gt PPP PP A CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE N OUVREZ PAS MA 5002VZ Power Amplifier IMPORTANT MA Series amplifiers require Class 2 output wiring Les amplificateurs de s rie de MA exigent des cables de sortie de classe 2 MA Reihe Verstarker verlangen Klasse die 2 Produktionsverdrah tung Los amplificadores de la Serie MA requieren de un cableado de sal ida Clase 2 MAGNETIC FIELD CAUTION Do not locate sensi
16. 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 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 12 01 page 23 MA 5002VZ Power Amplifier crown 9 Warranty continued WORLDWIDE EXCEPT USA amp CANADA 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 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 fur ther 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 wh
17. fore installing it in an amplifier Crown also designed intelligent circuitry to simulate the instantaneous operating conditions of those output transistors Its name describes what it does Output Device Emulation Protec tion or ODEP It not only simulates the operation of the output transistors but it also compares their operation to their known SOA If ODEP sees that more power is about to be asked of the output devices than they are capable of delivering under the present conditions ODEP immedi ately limits the drive level until it falls within the SOA Limiting is proportional and kept to an absolute mini mum only what is required to prevent the possibility of output transistor damage This level of protection enables Crown to increase output transistor utilization while greatly increasing amplifier reli ability Finally this onboard intelligence is monitored in two ways First the front panel ODEP indicators show whether the amplifier is functioning correctly or if ODEP is limiting the drive level Second ODEP data is fed to the PIP connector at the back of the amplifier so advanced PIP modules like the IQ PIP USP3 can use it to make decisions and control the amplifier With ODEP you get the maximum power with the maxi mum protection the show goes on 5 1 2 IOC Input Output Comparator The IOC circuit compares the output signal of the amplifier with the input signal If there is any difference other than gain then it i
18. ich 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 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 ce
19. idge eisie 15 5 2 2 Variable Impedance VZ siec 15 gA Loa o C nanana 16 5 2 4 Loudspeaker Offset Integration cccececeeeeeen 16 apo 1010 0 Seen ee ren aia ag ata 16 3 9 PIF WOMUIES sef cotata ia atacata aa i i 16 6 Troubleshooting mme eee eee 17 7 Specifications cane atace nea aaa anina mie aia a dia 18 O SEIVIDE ss piara atacat i ide nad ial 22 8 1 International and Canada Service nu nenea 22 EMALE SE A AE uta la ez Rita a aie 22 8 2 1 Service at a US Service Center oo eee eee 22 8 2 2 Factory SENIOR se toat statuia vaii a ltd 22 8 2 3 Factory Service Shipping Instructions 22 8 2 4 Packing Instructions scz aaa ta 22 8 2 5 Estimate Approval eee eee 22 8 2 6 Payment of Non Warranty Repairs cece 22 SAE a E E E E E 23 Product Registration si aaa ata ad a n 25 Factory Service Information FOrM n nenea 2T Operation Manual MA 5002VZ Power Amplifier MA 5002VZ fae a ae 2 ohm Dual per ch 2 500W 2 155W 4 ohm Dual per ch 2 000W 1 775W 8 ohm Dual per ch 1 300W 1 090W 4 ohm Bridge Mono 5 000W 8 ohm Bridge Mono 4 000W 3 670W 1 kHz Power refers to maximum average power in watts at 1 kHz with 0 1 THD 20 Hz 20 kHz Power refers to maximum average power in watts from 20 Hz to 20 kHz with 0 1 THD Operation Manual Crown MACFO TECH 500eWVz ODEP ILOAD ILIMIT ENABLE 12 18 9 21 ON SIGNAL 10C 6 24 O mG 3 27 1 Welcome The Crown
20. ies to deliver twice the voltage of a single segment When the output stage requires high current the segments are arranged in parallel to deliver twice the current of a single segment Sensing circuitry watches the voltage of the signal to determine when to switch VZ modes The switching circuitry is designed to prevent audible switching distortion to yield the highest possible dynamic transfer function you hear only the music and not the amplifier With VZ you get not only maximum power and safety but you also get the best power matching to your load The VZ Variable Impedance mode causes the power supplies to automatically shift between high current and low current modes of operation as operating conditions change Normally the power supplies operate in the high current low impedance mode for maximum thermal effi ciency When voltage demand reaches highs levels the supplies quickly shift into high voltage high impedance mode Because voltage and current requirements vary with the output level and frequency content of the source Signals the power supplies are designed to be able to continually switch between the two modes as needed with no degradation to the audio signal page 15 LIOUIII 5 Advanced Features and Options continued page 16 A The VZ Mode switches allow you to control the opera tion of the VZ power supply for each channel The VZ mode switches are located inside the amplifier behind the top d
21. inimum of four inches 10 2 cm from the amplifier back panel Figure 3 2 illustrates standard amplifier airflow Figure 3 2 Airflow Operation Manual MA 5002VZ Power Amplifier CIODOUJII 3 Setup continued 3 4 Choose Input Wire Balanced Line Unbalanced Line and Connectors Refer to Figure 3 3 for correct connector pin assignments for balanced wiring and Figure 3 4 for correct connector pin assignments for unbal anced wiring NOTE Custom wiring should only be A performed by qualified personnel SORTE X source INPUT INPUT Co gt Ce SOURCE i Pai GND h SHIELD 2 A Figure 3 3 Balanced Input Figure 3 4 Unbalanced Input Connector Wiring Connector Wiring Operation Manual page 7 e Al MA 5002VZ Power Amplifier 3 Setup continued 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 and connectors You may use banana connectors terminal forks or bare wire for your output connectors see Figure 3 5 To prevent the possibility of short circuits wrap or otherwise insulate exposed loudspeaker cable connectors CH 2 OUTPUTS CH 1 OUTPUTS 299 ADG ROHO OYo Using the guidelines below select the appropri ate size of wire based on the distance from amplifier to speaker Distance Wire Size up to 40 ft 14 gauge Figure 3 5 Output Connector Wiring 41 60 ft 12 gauge 61 100
22. io 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 sibility 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 Donot 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 lf you provide your own shipping pack the mini mum recommended requirements for materials are as f
23. lation 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 interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Operation Manual MA 5002VZ Power Amplifier Crouwri Crown International Inc DECLARATION of CONFORMITY TCF Technical Certificate No C1017CRI 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 817 Thornhill Cardiff South Glamorgen Equipment Type Commercial Audio Power Amplifiers CF14 9UG United Kingdom Family Name MACRO TECH 5002VZ Model Names MA5002VZE10CE MAS002VZE17CE MAS002VZE14CE EMC Standards EN 55103 1 1995 Electromagnetic Compatibility Product Family Standard for Audio Video Audio Visual and Entertainme
24. lec tion of 26 dB 1 4V or 0 775V input sensitivity Power Cord Output Connectors High current output block accepts banana plugs spade lugs or bare wire A detatch able output cover shown in Figure 4 3 SENSITIVITY SENSITIVITY 1 4 LI OUIII protects against accidental short circuits and dangerous electrical shock DANGER The outputs can produce lethal energy levels Do not change the output wiring unless the ampli fier has been off for at least 10 sec onds Note Some international models include high current binding posts rather than the output block Figure 4 4 shows the inter national binding posts COMPRESSOR A Eve 07 Rea ja INTEGRATION INTEGRATION oFFe scow orFe eon 2648 o0 775v 2648 o 775v orre on orFe e sLow ION TURN OFF AMPLIFIER CAUTION BEFORE CHANGING THIS SWITCH CHANNEL 2 e gt CHANNEL 1 Figure 4 2 Back Panel Controls and Connectors REG U S PAT OFF 4 330 QB 100 VAC 50 60 Hz 31 2 A 200 VAC 50 60 Hz 15 6 Af 230 VAC 50 60 Hz 13 6A IMPORTANT cCrowm m C rO T E C fe O Vz CLASS 1 OUTPUT Pd a QB 120 VAC 50 60 Hz 26A GP 208 VAC 50 60Hz 15A Gf 240 VAC 50 60Hz 13A WIRING REQUIRED SHE 330 809 4 788 452 CH 2 OUTPUTS CH 1 OUTPUTS Zs a COMPATIBLE a GREI DO a RING EI DILII L oN ETN m E a ee ee 0 0 0 s0 Programmable Input Processor P I P Operation Manual page 13 crown 4 Operation
25. mbered level control works both channels Operation Manual LI OUIII STEREO III AM ate n STEREO MODE CHANNEL 2 i CHANNEL 1 I II i CAUTION TURN OFF AMPLIFIER BEFORE CHANGING THIS SWITCH DEAD PIAA OE le Odo I J J CHANNEL 2 CHANNEL 1 LOUDSPEAKERS LOUDSPEAKERS Figure 3 6 System Wiring Stereo Mode STEREO tt IUR CAUTION TURN OFF AMPLIFIER BEFORE CHANGING THIS SWITCH ONLY USE THE CHANNEL 1 INPUT eop pege OBE CI OIBEIO DO NOT USE THE NEGATIVE OUTPUT TERMINALS DO NOT USE THE THE CHANNEL 2 NEGATIVE INPUTS ARE OUTPUT NOT USED TERMINALS A LOUDSPEAKER Figure 3 7 System Wiring Bridge Mono Mode page 9 LIOUIII 3 Setup continued 3 6 3 Parallel Mono Mode Typical input and output wiring is shown in Figure 3 8 INPUTS Connect input wiring to Channel 1 Refer to Figure 3 4 for input connector pin assignments OUTPUTS Install a jumper wire between the positive outputs of both Channel 1 and Channel 2 that is at least 14 gauge in size Connect posi tive speaker lead to Channel 1 positive output of amp connect negative speaker lead to Channel 2 negative output of amp Refer to Section 3 5 for output connector pin assign ments Make sure the Mode switch is set to the Parallel position when operating in Parallel Mono mode NOTE Turn down full CCW the Channel 2 level control whe
26. move 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 of 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
27. n 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 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 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 MA 5002VZ Power Amplifier CUT ON THIS LINE Operation Manual PRODUCT REGISTRATION Crown International os Elkhart IN 46517 9439 Phone 574 294 8000 Crouwr i Fax 574 294 8329 www crownaudio com Online registration is also available at hitp crownweb crownintl com webregistration When this form
28. n on techniques to protect loudspeakers refer to the Crown Amplifier Application Guide available online at www crownaudio com 5 3 Options 5 3 1 PIP Modules Versatile PIP Programmable Input Processor modules provide flexible expansion features that can be added to customize the amplifier PIP modules plug into the connector inside the back panel of the amplifier PIP modules are available with features ranging from error driven compressor limiters to remote control and moni toring via System Architect or Qwic Your amplifier is a PIP2 amplifier which means it can take advantage of the many advanced features found in PIP2 modules as well as all standard PIP modules Visit the Crown website at www crownaudio com or contact Crown Customer Service for descriptions of available PIP and PIP2 modules Operation Manual MA 5002VZ Power Amplifier CIODOUJII 6 Troubleshooting one or more channels SIGNAL IOC ODEP ILoav LLimit ENABLE one or more channels SIGNAL IOC ODEP ILoad ILimit ENABLE 900 O SIGNAL IOC ODEP ILoad LLimit CONDITION Normal operation POSSIBLE REASON CONDITION No power to the amplifier POSSIBLE REASON e This is normal operation for your amp 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 autho
29. n operating in Parallel Mono mode as the lower numbered level control works both channels NOTE Remove the jumper wire before A changing to any mode except Parallel Mono NOTE Crown provides a reference of wiring pin assignments for commonly used connector types in the Crown Amplifier Application Guide available at www crownaudio com page 10 MA 5002VZ Power Amplifier ATUL TTT VAAN WMA STEREO PARALLEL BRIDGE MONO MONO CAUTION TURN OFF AMPLIFIER BEFORE CHANGING THIS SWITCH PARALLEL MONO MODE ONLY USE THE CHANNEL 1 INPUTS ZEN i V THE CHANNEL 2 INPUTS ARE NOT USED Macro Tech 5000VZ CH 2 OUTPUTS lt CH 1 OUTPUTS LOUDSPEAKER ADD A 14 GAUGE OR LARGER JUMPER BETWEEN THE CHANNEL 1 CHANNEL 2 POSITIVE TERMINALS Figure 3 8 System Wiring Parallel Mono Mode Operation Manual MA 5002VZ Power Amplifier 3 Setup continued Operation Manual 3 7 Connect to AC Mains Connect the AC power cordset of your amplifier to the AC mains power source power outlet NOTE The plug supplied with 120V versions of the MAD000VZ is a 120V 30 ampere plug Figure 3 9 Figure 3 9 120V 30A Power Plug Supplied with 120V Versions of the MA5002VZ NOTE The third prong of this connector ground is an important safety feature Do not attempt to disable this ground connection by using an adapter or other methods Amplifiers don t create energy
30. nt 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 Emissions equipment input current lt 16A per phase EN 61000 3 3 1995 Limitation of Voltage Fluctuations and Flicker in Low Voltage Supply Systems Rated Current lt 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
31. ollows a 2 5P5 1 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 Donotuse 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 Carefully place your product with the product s front panel facing the same direction as arrows indicate 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 Enclose the 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 Warrant
32. ord 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 WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE DO NOT EXPOSE TO DRIPPING OR SPLASHING DO NOT PLACE OBJECTS FILLED WITH LIQUID SUCH AS VASES ON THIS APPARATUS Wichtige Sicherheitsinstruktionen Instrucciones de Seguridad Importantes TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR BOTTOM COVERS NO USER SERVICEABLE 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 PARTIES SERVICEABLE A LINTERIEUR TOUS REPARATIONS DOIT ETRE FAIRE PAR PERSONNEL QUALIFIE SEULMENT PARA PREVENIR UN CHOQUE ELECTRICO NO RETIRE LAS CUBIERTAS SUPERIOR O INFERIOR NO EXISTEN PARTES QUE PUEDAN SER REPARADAS POR EL USUARIO AL INTE RIOR REMITA EL SERVICICO AL PERSONAL TECHNICAL CALIFICADO TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTACLE THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE POUR DEMONTER COMPLETEMENT L EQUIPEMENT DE L ALIMENTATION GENERALE DEMONTER LE CABLE D ALI MENTATION DE SON RECEPTACLE LA PRISE D ALIMEN TATION RESTERA AISEMENT FONCTIONNELLE PARA DESCONECTAR COMPLETAMENTE EL EQUIPO DEL SUMINSTRO ELECT
33. r CrOouwri 7 Specifications continued Figure 7 3 Typical P Figure 7 6 Typical Frequency Response Phase Response 0 abi aati EE EAA TIE 2 4 ohm 3 2 ohm LOI off LOI on MU dB LOI on 6 DEGREES PE RR ii 10 100 1K 10 K 100 K LT INTE ULUI 1400 Figure 7 4 Typical Damping Factor 1200 FREQUENCY Hz 1000 800 DAMPING FACTOR 400 200 Figure 7 7 Typical Crosstalk 100 20 100 1K 10K 20K FREQUENCY Hz Figure 7 5 Typical Output Impedance 126 8 MILLIOHMS 6 dB 31 8 10 100 1K 10K 100 K FREQUENCY Hz FREQUENCY Hz Operation Manual page 21 MA 5002VZ Power Amplifier LIOUIII 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 re
34. r if you do not want to provide this information at this time we will contact you for the information when your unit is repaired Credit card information Type of credit card D Master Card D Visa D American Express D Discover Type of credit card account L Personal Consumer LI Business Corporate Card EXp ates Card ID A 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 Operation Manual page 27 CLIOUIII H A Harman International Company
35. ranty 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 refund 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 o
36. rcuitry immediately alerts of any distortion exceeding 0 05 providing dynamic proof of distortion free performance Articulated VZ power supplies for each channel provide excellent crosstalk char acteristics and the best power matching to your load LI OUIII 2 How to Use This Manual This manual provides you with the necessary information to safely and correctly setup 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 LIOUIII 3 Setup page 6 A 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 as needed Save the shipping carton as evidence of damage for the shipper s inspection We also recommend that you save all packing materials so you will have them if you ever need to
37. re referred to as high side NPN and PNP and the devices connected to ground are referred to as low side NPN and PNP Positive current is delivered to the load by increasing conductance simulta neously in the high side NPN and low side PNP stage while decreasing conductance of the high side PNP and low side NPN in synchrony Crown s Grounded Bridge design delivers large voltage Swings without stressing output transistors The results are higher efficiency lower distortion and superior reliab lility LI OUIII 5 2 2 Variable Impedance VZ VZ is the name of Crown s patented articulated power supply technology This innovative technology permits us to pack large amounts of power into a compact package while achieving ultra low distortion and without generat ing excessive heat An amplifier power supply must be large enough to handle both the maximum voltage and maximum current necesary for the amplifier to drive its rated power into a specified load In order to meet this requirement most conventional supplies are heavy large and produce lots of heat In contrast the VZ supply gets more current AND voltage out of a smaller lighter and more efficient package by dynam ically adapting to both signal and load requirements in real time This provides the best power match to the widest range of loads The VZ supply is divided into two segments When the output stage requires high voltage the segments are arranged in ser
38. rized Crown Service Center for Servicing grag ODEP ILoad ILimit ENABLE e The amp is set for Parallel Mono mode ro ro oT an ie AS one or more CONDITION No sound channels SIGNAL IOC ODEP ILoad ILimit ENABLE POSSIBLE REASON one or more channels SIGNAL IOC ODEP ILoad LLimit ENABLE CONDITION Distorted sound POSSIBLE REASON The amplifier has just been turned on and is still in the 4 second turn on delay 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 Signal IOC LEDs to constantly indicate an IOC condition The amplifier is being held in Standby Mode by an installed IQ PIP module The amplifier is in drive protection mode This can occur with improper source sig nals like infrasonic Square waves or input overloads that excessively clip the input SIGNAL IOC ODEP ILoad ILimit ENABLE e QDEP limiting has been activated Take Ly L e 2 appropriate measures to keep the ampifier out of ODEP limiting see Section 5 1 1 for oe or oT more Information about ODEP SIGNALAOC ODEP ILoad ILimit ENABLE No input signal Input signal level is very low 7 N Z N SIGNALIOC ODEP ILoad ILimit ENABLE e Output current is being limited because the Level controls are turned down l load impedance of the channel is too low N N
39. s considered distortion and the indicator comes on The LED indicator will come on whenever there is distortion of 0 05 or more An IOC condition may also be sensed by an IQ PIP module installed in PIP compati ble amplifiers IOC is designed to report any form of distortion IOC not only checks the waveform for distortion but also reports input overload and even a protective action that mutes or shuts down an amplifier With all of these features IOC monitors the entire amplifier When the IOC indicator is off the amplifier is definitely operational and undistorted IOC provides an on line proof of performance 5 2 Circuit Designs 5 2 1 Grounded Bridge Grounded Bridge is the name of Crown s unique four quadrant amplifier topology The Grounded Bridge topol ogy takes full advantage of the power supplies delivering peak to peak voltages to the load that are twice the voltage seen by the output devices and twice the voltage generated by the power supplies The power supply bridge rectifier is not ground referenced and the transformer secondary is not center tapped This allows the power supply to deliver VCC and VCC from the same bridge rectifier and filter as a total difference in potential regardless of their voltages with respect to ground Composite output devices are arranged to function as gigantic NPN and PNP devices Each output stage has two composite NPN and two composite PNP devices The devices connected to the load a
40. se 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 accor dance with the manufacturer s instructions 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 polarized 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 pro vided plug does not fit into your outlet consult an electri cian 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 manu facturer Use only with a cart stand tripod bracket or table speci fied by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination 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 personnel Servic ing is required when the apparatus has been damaged in any way Such as power supply c
41. should be connected To do a test like this you can operate under worst case conditions and continue to connect additional loudspeak ers in parallel with each output until the ILoad ILimit indi cator turns red The optimum load is achieved before the ILoad ILimit indicator turns red so disconnecting the last added loudspeaker gives you an optimized load Figure 5 1 Channel 1 VZ Mode Switch Behind Filter A MA 5002VZ Power Amplifier 5 2 4 Loudspeaker Offset Integration Loudspeaker Offset Integration LOI circuits use double integrating filters in the amplifier s feedback circuitry to protect loudspeakers in several different ways First they center asymmetrical audio waveforms that cause off center woofer cone movement Off center cone movement increases loudspeaker heating and distortion while reduc ing the loudspeaker s power handling ability Second LOI filters unwanted DC and subsonic frequencies using a third order Butterworth filter with a 35 Hz corner frequency Third LOI filters unwanted ultrasonic frequen cies RF that can cause tweeter burnout using a second order Bessel filter with a 50 kHz corner frequency IMPORTANT The Loudspeaker Offset Integration circuitry does NOT protect loudspeakers from large transient voltages or excessive power levels for prolonged periods of time Crown is not liable for damage or personal injury that results from over driving loudspeakers or other system components For informatio
42. that the input waveform does not match the output waveform and an error signal is generated If the compressors are on they will see the error signal and compress the input signal to correct the problem When this happens there is no audible signal degradation Compression is subtle and not noticeable unless the system is driven to extremely high levels The Lock Low mode locks the power supplies into the high current mode for low impedance loads This may be desirable when driving high frequency transducers that must be protected from too much voltage or when driving loads with very low impedances 5 2 3 ILoad ILimit The ILoad ILimit feature is designed to help you get the maximum power out of your amplifier In the real world loudspeaker impedance varies with frequency and loud Speaker impedance ratings are only approximations With out ILoad ILimit you have to do some lengthy calculations to approximate the maximum number of loudspeakers you can drive with the amplifier and this does not allow for a 4 ohm loudspeaker whose impedance drops below 2 ohms at 80 Hz This is why your amplifier has Load ILimit The ILoad function turns a channels ILoad ILimit indicator green when it senses current is flowing to the load The ILimit function turns the indicator red when it reaches maximum current output This makes it possible to connect real loudspeakers and conduct realistic tests to find the maxi mum number of loudspeakers that
43. ther 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 DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES YOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGES RESULTING crown FROM ANY DEFECT IN THE NEW CROWN PRODUCT THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULI 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
44. tive high gain equipment 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 unshielded devices that are located nearby The field is strongest just above and below the unit If an equipment rack is used we recommend locating the ampli fier s in the bottom of the rack and the preamplifier or other sensi tive equipment at the top 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 operation 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 in a particular instal
45. urn off and ODEP limiting occurs see Section 5 1 1 for more about ODEP Enable Indicator Green LED indicates amplifier has been turned on and AC power is available Enable Switch Amplifier is on when the switch is in the IN position VZ Mode Switch Four position switch one Per Channel Allows selection of VZ ODEP Lock Low and VZ power supply modes from left to right right most two positions both select VZ mode See Section 5 2 2 for more about VZ and the VZ Mode Switch at He Te 24 SI SIGNAL IOC an oS GH ILOAD ILIMIT Figure 4 1 Front Panel Controls and Indicators shown with top filter grille mMmACrFO TECH S500e2WVazA removed for clarity Crown Da Q A H B CDE EDC B HF G page 12 Operation Manual MA 5002VZ Power Amplifier 4 Operation continued 4 3 Back Panel Controls and Connectors Stereo Mono Switch Allows selection of Stereo Bridge Mono or Parallel Mono operation J Compressor Switch Controls the channel s error driven com pressor Selections include Off Fast 4 millisecond attack 300 millisecond release and Slow 12 millisecond attack 600 millisecond release STEREO Loudspeaker Offset Integration Switch Allows the Loudspeaker Offset Integration LOI circuit to be enabled or disabled See section 5 2 4 for more info about LOI Sensitivity Switch Three position switch Allows the se
46. ust filter on the front panel To access these switches remove the top filter element Always turn the power off before changing one of these switches Each switch has four settings from left to right VZ ODEP Lock Low VZ and VZ Note The third and fourth positions are identical The amplifier is shipped from the factory with the switches set to VZ ODEP The VZ Variable Impedance mode causes the power supplies to automatically shift between high current and low current modes of operation as operating conditions change Normally the power supplies operate in the high current low impedance mode for maximum thermal effi ciency When voltage demand reaches highs levels the supplies quickly shift into high voltage high impedance mode Because voltage and current requirements vary with the output level and frequency content of the source signals the power supplies are designed to be able to continually switch between the two modes as needed with no degradation to the audio signal The VZ ODEP mode is very similar to VZ mode The only difference is that the power supplies are forced into high current mode when ODEP is close to activating its limiting circuitry This reduces excessive stress on the output transistors and effectively increases the thermal performance of the amplifier VZ ODEP Lock Low VZ VZ Note When ODEP limiting begins the 10C circuitry will see
47. y Repairs Payment on out of waranty 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 htto www crownaudio com Operation Manual MA 5002VZ Power Amplifier 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 War
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