crown CTs 4200 Multi Channel Power Amplifiers Instruction Manual

crown CTs 4200 Multi Channel Power Amplifiers

CTs Multi-Channel Series Power Amplifiers

The CTs Multi-Channel Series Power Amplifiers are designed to provide high- quality audio amplification for various applications. This manual covers the operation and maintenance of the CTs 4200 and CTs 8200 models. To obtain information in another language, please contact your local Crown Distributor. For the latest version of this manual, please visit the Crown website.

Important Safety Instructions

It is important to read and follow all safety instructions before using this product. Some of the key safety instructions include:

• Do not use this apparatus near water.
• Clean only with a dry cloth.
• Do not block any ventilation openings.
• Do not install near any heat sources.
• Do not expose this equipment to dripping or splashing.
• Ensure that no objects filled with liquids are placed on the equipment.
• The mains plug of the power supply cord shall remain readily operable.
• To prevent electric shock, do not remove top or bottom covers. No user-serviceable parts inside. Refer servicing to qualified service personnel.
• To completely disconnect this equipment from the AC mains, disconnect the power supply cord plug from the AC receptacle.

Pay attention to the symbols used in this manual:

• The lightning bolt triangle alerts the user to the risk of electric shock.
• The exclamation point triangle alerts the user to important operating or maintenance instructions.

Magnetic Field
Due to its high power density, the CTs Multi-Channel Series Power Amplifiers have a strong magnetic field that can induce hum into unshielded devices that are located nearby. To avoid this, do not locate sensitive high- gain equipment such as preamplifiers directly above or below the unit. If an equipment rack is used, we recommend locating the amplifier(s) in the bottom of the rack and the preamplifier or other sensitive 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Usage Instructions
Before using the CTs Multi-Channel Series Power Amplifiers, ensure that all safety instructions are followed. Connect the power supply cord plug to an AC receptacle. To turn on the power, press the power button located on the front panel.
Connect audio sources to the input connectors located on the rear panel. Connect speakers to the output connectors located on the rear panel. Adjust the volume and other settings as desired using the controls located on the front panel.
If you experience any issues or require servicing, refer to qualified service personnel. Do not attempt to service the equipment yourself.

CTs Multi-Channel Series Operation Manual

CTs 4200 CTs 8200

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: Com-Tech, BCA, Crown, Crown Audio, Amcron and Multi-Mode are registered trademarks of Crown International. IQwic, PIP and PIP2 are trademarks of Crown International. Other trademarks are the property of their respective owners.
© 2008 by Crown Audio®, Inc. 1718 W. Mishawaka Rd., Elkhart, Indiana 46517-9439 U.S.A. Telephone: 574-294-8000

141282-1 10/10

CTs Power Amplifiers

Important Safety Instructions

Wichtige Sicherheitsinstruktionen

Importantes Instructions de Sécurité Instrucciones de Seguridad Importantes

IMPORTANT

1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings. Install in accordance
with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. 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 provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. 11. Only use attachments/accessories specified by the manufacturer. 12. 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 combination to avoid injury from tip-over. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Refer all servicing to qualified service personnel. 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. 15. Use the mains plug to disconnect the apparatus from the mains. 16. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. 17. DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR SPASHING AND ENSURE THAT NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, ARE PLACED ON THE EQUIPMENT. 18. THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE.

TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR BOTTOM COVERS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
À PRÉVENIR LE CHOC ÉLECTRIQUE N’ENLEVEZ PAS LES COUVERCLES. IL N’Y A PAS DES PARTIES SERVICEABLE À L’INTÉRIEUR. TOUS REPARATIONS DOIT ETRE FAIRE PAR PERSONNEL QUALIFIÉ SEULMENT.
PARA PREVENIR UN CHOQUE ELÉCTRICO, NO RETIRE LAS CUBIERTAS SUPERIOR O INFERIOR. NO EXISTEN PARTES QUE PUEDAN SER REPARADAS POR EL USUARIO AL INTERIOR. REMITA EL SERVICICO AL PERSONAL TÉCHNICAL 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 DÉMONTER COMPLÈTEMENT L’ÉQUIPEMENT DE L’ALIMENTATION GÉNÉRALE, DÉMONTER LE CÂBLE D’ALIMENTATION DE SON RÉCEPTACLE. LA PRISE D’ALIMENTATION RESTERA AISÉMENT FONCTIONNELLE.
PARA DESCONECTAR COMPLETAMENTE EL EQUIPO DEL SUMINSTRO ELECTRICO, DESCONECTE EL CABLE DE ALIMENTACION DE LA TOMA DE CA. LAS PATAS DEL CONECTOR DEL CABLE DE ALIMENTACIÓN 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 employée pour alerter l’utilisateur au risque de décharge électrique. Le triangle avec un point d’exclamation est employée pour alerter l’utilisateur d’instruction importantes pour lors opérations de maintenance.
ATENCION CON ESTOS SÍMBOLOS:
El triángulo con el símbolo de rayo eléctrico es usado para alertar al usuario de el riesgo de un choque eléctrico.
El triángulo con el signo de admiración es usado para alertar al usuario de instrucciones importantes de operación o mantenimiento.

CTs Series amplifiers require Class 2 output wiring. Les amplificateurs de série de CTs exigent des câbles de sortie de classe 2. CTs-Reihe-Verstärker verlangen Klasse die 2 Produktionsverdrahtung. Los amplificadores de la Serie CTs requieren de un cableado de salida Clase 2.
MAGNETIC FIELD
CAUTION! Do not locate sensitive high-gain equipment such as preamplifiers 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 amplifier(s) in the bottom of the rack and the preamplifier or other sensitive 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 complicance could void the user’s authority to operate the euqipment.
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 installation. If this equipment does cause harmful interference to radio or television 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:
·Reorientorrelocatethereceivingantenna. ·Increasetheseparationbetweentheequipmentandreceiver. ·Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthe
receiver is connected.
·Consultthedealeroranexperiencedradio/TVtechnicianforhelp.

page 2

Operation Manual

CTs Power Amplifiers

Crown Audio, Inc.
ISSUED BY: Crown Audio, Inc. 1718 W. Mishawaka Road Elkhart, Indiana 46517 U.S.A.
European Representative’s Name and Address: David Budge 10 Harvest Close Yateley GU46 6YS United Kingdom

DECLARATION of CONFORMITY
FOR COMPLIANCE QUESTIONS ONLY: Sue Whitfield 574-294-8289 [email protected]

Equipment Type: Commercial Audio Power Amplifiers Family Name: CTs Model Names: CTs 4200, CTs 8200
EMC Standards: EN 55103-1:1997 Electromagnetic Compatibility – Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 1: Emissions EN 55103-1:1997 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 16A per phase) EN 61000-3-3:1995 Limitation of Voltage Fluctuations and Flicker in Low-Voltage Supply Systems Rated Current 16A EN 55022:2003 Limits and Methods of Measurement of Radio Disturbance Characteristics of ITE: Radiated, Class B Limits; Conducted, Class B EN 55103-2:1997 Electromagnetic Compatibility – Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 2: Immunity EN 61000-4-2:2003 Electrostatic Discharge Immunity (Environment E2-Criteria B, 4k V Contact, 8k V Air Discharge) EN 61000-4-3:2003 Radiated, Radio-Frequency, Electromagnetic Immunity (Environment E2, criteria A) EN 61000-4-4:2005 Electrical Fast Transient/Burst Immunity (Criteria B) EN 61000-4-5:2001 Surge Immunity (Criteria B) EN 61000-4-6:1996 Immunity to Conducted Disturbances Induced by Radio-Frequency Fields (Criteria A) EN 61000-4-11:2004 Voltage Dips, Short Interruptions and Voltage Variation
Safety Standard: EN 60065: 1998 Safety Requirements – Audio Video and Similar Electronic Apparatus
I 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

Andrew Stump Title: Director of Manufacturing

Date of Issue: March 1, 2002

Operation Manual

Due to line current harmonics, we recommend that you contact your supply authority before connection.

page 3

Operation Manual

CTs Power Amplifiers

CTs 4200
Dual
4 Channels Driven 4-ohm (per ch.) 8-ohm (per ch.) 70V (per ch.)
1 Channel Driven 4-ohm (per ch.) 8-ohm (per ch.) 70V (per ch.)

Maximum Average Power in watts with 0.1% THD.
1 kHz 20 Hz­20 kHz 260W 215W 180W 190W 220W 220W
1 kHz 20 Hz­20 kHz 270W 225W 220W 210W 250W 245W

Bridge-Mono
2 Channel-Pairs Driven 8-ohm (per ch. pair) 16-ohm (per ch. pair) 100V (per ch. pair)
1 Channel-Pair Driven 8-ohm (per ch. pair) 16-ohm (per ch. pair) 100V (per ch. pair)

1 kHz 20 Hz­20 kHz 520W 430W 400W 380W 220W 220W
1 kHz 20 Hz­20 kHz 560W 450W 440W 420W 250W 245W

• Constant Voltage full bandwidth power ratings support 100Hz – 20kHz due to automatic High-Pass Filters.

CTs 8200
Dual
8 Channels Driven 4-ohm (per ch.) 8-ohm (per ch.) 70V (per ch.)
1 Channel Driven 4-ohm (per ch.) 8-ohm (per ch.) 70V (per ch.)

Maximum Average Power in watts with 0.1% THD.
1 kHz 20 Hz­20 kHz 200W 175W 160W 155W 200W 185W
1 kHz 20 Hz­20 kHz 270W 230W 220W 220W 250W 230W

Bridge-Mono
4 Channel-Pairs Driven 8-ohm (per ch. pair) 16-ohm (per ch. pair) 100V (per ch. pair)
1 Channel-Pair Driven 8-ohm (per ch. pair) 16-ohm (per ch. pair) 100V (per ch. pair)

1 kHz 20 Hz­20 kHz 400W 350W 320W 310W 200W 185W
1 kHz 20 Hz­20 kHz 540W 460W 440W 440W 250W 230W

• Constant Voltage full bandwidth power ratings support 100Hz – 20kHz due to automatic High-Pass Filters.

Operation Manual

1 Welcome
Building on the foundation of the Com-Tech® Series, Crown’s CTs Series offers new flexibility and value for installed sound applications. The Com-Tech Series were the first to offer independent selection of high- and lowimpedance operation for a specific channel, and CTs Series amplifiers continue that tradition, with power levels and features carefully chosen to perfectly integrate into fixed install design requirements.
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, CTs Series amplifiers include a number of features which require some explanation before they can be used to their maximum advantage.
Please take the time to study this manual so that you can obtain the best possible service from your amplifier.
1.1 Features · New Crown® Switching Power Supply for
reduced weight.

· High power-density, with eight channels in a 3U chassis and four channels in a 2U chassis.
· Selectable constant-voltage (70V/100V) or low-impedance (8/4 ohm) operation for each channel pair.
· FIT (Fault Isolation Topology) circuitry isolates faults within affected channels.
· 35 Hz High-Pass Filter (70 Hz in CTs 4200) is automatically inserted when the channel pair is set for constant-voltage operation. (corner frequency may be changed as a service option).
· Accepts VC-MC accessory module that tailors the amplifier for remote VCA level control.
· Comprehensive array of indicators including Power and Data, along with Bridge, Ready, Signal, Clip, Thermal and Fault for each channel, provide accurate diagnostics.
· Blue Power Indicator flashes if the amplifier shuts off due to an under-/overvoltage condition on the AC mains.
· Advanced protection circuitry guards against: shorted outputs, open circuits, DC, mismatched loads, general overheating, under-/over-voltage, highfrequency overloads and internal faults.

· Proven Crown AB+B Multi-Mode® output topology.
· Continuously-variable-speed fans optimize cooling efficiency.
· Three Year, No-Fault, Fully-Transferable Warranty completely protects your investment and guarantees its specifications.
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 additional information, please consult Crown’s Amplifier Application Guide (available online at www.crownaudio.com), Crown Tech Support, your system installer or retailer.
We strongly recommend you read all instructions, warnings and cautions contained in this manual. Also, for your protection, please send in your warranty registration card today, or register online at www.crownaudio.com. And save your bill of sale–it’s your official proof of purchase.

page 5

Setup

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 transportation company immediately. Only you can initiate 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 transport the unit. Never ship the unit without the factory pack.
YOU WILL NEED (not supplied):
· Input wiring cables
· 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 Instructions found at the beginning of this manual.

Fault Thermal

Clip Signal Ready

1 Bridge 2

3 Bridge 4

Power Data

3.2 Install Your Amplifier
CAUTION: Before you begin, make sure your amplifier is disconnected from the power source, with the power switch in the “off” position and all level controls turned completely down (counterclockwise).
Use a standard 19-inch (48.3-cm) equipment rack (EIA RS-310B). See Figure 3.1 for amplifier dimensions.
You may also stack amps without using a cabinet.
NOTE: When transporting, amplifiers should be supported at both front and back.

page 6

Figure 3.1 Dimensions Left: CTs 4200 Right: CTs 8200

CTs Power Amplifiers
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, rear or side 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 minimum of four inches (10.2 cm) from the amplifier back panel. Figure 3.2 illustrates standard amplifier airflow.
Figure 3.2 Airflow
Operation Manual

CTs Power Amplifiers

3 Setup

3.4 Choose Input Wire and Connectors Figure 3.3 shows connector pin assignments for balanced wiring, and Figure 3.4 shows connector pin assignments for unbalanced wiring.
When possible, use balanced wiring for signal input, which provides better rejection of unwanted noise and hum. For more information, refer to the Crown Amplifier Application Guide, available online at www.crownaudio.com
NOTE: Custom wiring should only be performed by qualified personnel.

3.5 Choose Output Wire and
Connectors
Crown recommends using professionally constructed, highquality, two- or four- conductor, heavy gauge speaker wire and connectors. You may use terminal forks or bare wire for your output connectors (see Figure 3.5). CTs amplifier terminal strips accept up to 10 AWG terminal forks which fit over a #8 screw. For best results, Crown recommends Panduit part #PV1010LF-L or equivalent terminal fork. Screw spacing is shown in Figure 3.5.

To connect outputs, first remove the touch-proof cover plate covering the terminal strip by removing the screw which holds it in place.

To prevent the possibility of short-circuits, wrap or otherwise insulate exposed loudspeaker cable and connectors. Also, a touch-proof cover plate, which covers the terminal strips, is provided to help prevent short circuits. The cover plate should be reinstalled after connecting outputs.

Suggested below are guidelines to select the appropriate size of wire based on the distance from amplifier to speaker. Check with local code as this may vary.

Distance

Wire Size

up to 25 ft (7.6 m) 26-40 ft (7.9-12.2 m) 41-60 ft (12.5-18.3 m) Over 60 ft (18.3 m)

16 AWG 14 AWG 12 AWG 10 AWG

CAUTION: Never connect the speaker return to the chassis of the amplifier, or damage to the amplifier may result.

CAUTION: Never use shielded cable for output wiring.

Operation Manual

Figure 3.3 Balanced Input Connector Wiring
See the Crown Amplifier Application Guide, available online at www.crownaudio.com, for pin assignments for commonly used connector types.
Figure 3.4 Unbalanced Input Connector Wiring
NOTE: CTs 8200 is shown. Some CTs 4200 features are in different locations.
Output panel shown with touch-proof cover plate removed.

Figure 3.5 Output Connector Wiring (Typical of two channels)

page 7

3 Setup
3.6 Wire Your System CAUTION: Never change the position of the Mode Switch while the amplifier power is on. See Section 5.2.2 for more information.
3.6.1 Dual 8/4 Mode Typical input and output wiring, along with level control and Mode Switch settings are shown in Figure 3.6. Make sure the Mode switch is set to the “Dual 8/4” position. INPUTS: Connect input wiring for each channel. OUTPUTS: Maintain proper polarity (+/­) on output connectors. Connect the Channel 1 speaker’s positive (+) lead to amplifier Channel 1 positive terminal; repeat for negative (­). Repeat each channel wiring as for Channel

1. Refer to Section 3.5 for output connector pin assignments.
   3.6.2 Dual 70V Mode CAUTION: Never change the position of the Mode Switch while the amplifier power is on. See Section 5.2.2 for more information. Typical input and output wiring, along with level control and Mode Switch settings are shown in Figure 3.7. Make sure the Mode switch is set to the “Dual 70V” position. INPUTS: Connect input wiring for each 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 each channel wiring as for Channel 1. Refer to Section 3.5 for output connector pin assignments.
   page 8

BRIDGE DUAL
CH 2

DUAL
CH 1

CH 4
DUAL BRIDGE

CH 3
DUAL

CTs Power Amplifiers
See the Crown Amplifier Application Guide, available online at www.crownaudio.com, for pin assignments for commonly used connector types.
Output panel shown with touch-proof cover plate removed.

Figure 3.6 System Wiring and Control Settings, Dual Mode, 8/4 Ohm
70V

70V

BRIDGE DUAL
CH 2

DUAL
CH 1

CH 4
DUAL BRIDGE

CH 3
DUAL

Output panel shown with touch-proof cover plate removed.

Figure 3.7 System Wiring and Control Settings, Dual Mode, 70V.

Operation Manual

CTs Power Amplifiers
3 Setup
3.6.3 Bridge-Mono 16/8 Mode CAUTION: Never change the position of the Mode Switch while the amplifier power is on. See Section 5.2.2 for more information.
Typical input and output wiring, along with level control and Mode Switch settings are shown in Figure 3.8. Make sure the Mode switch is set to the “Bridge 16/8” position.
INPUTS: Connect input wiring only to the lower(odd-) numbered channel pair.
OUTPUTS: Connect the speaker across the positive terminals of each channel pair. Do not use the negative terminals of the channel pair when the pair is being operated in Bridge-Mono mode.
NOTE: When operating the channel pair in Bridge-Mono mode, turn down (full CCW) the level control for the higher (even)-numbered channel of the channel pair. The lower (odd)numbered level control works both channels.
3.6.4 Bridge-Mono 100V Mode CAUTION: Never change the position of the Mode Switch while the amplifier power is on. See Section 5.2.2 for more information.
Typical input and output wiring, along with level control and Mode Switch settings are shown in Figure 3.9. Make sure the Mode switch is set to the “Bridge 100V” position.
INPUTS: Connect input wiring only to the lower(odd-) numbered channel pair.
OUTPUTS: Connect the speaker across the positive terminals of each channel pair. Do not use the negative terminals of the channel pair when the pair is being operated in Bridge-Mono mode.
NOTE: When operating the channel pair in Bridge-Mono mode, turn down (full CCW) the level control for the higher (even)-numbered channel of the channel pair. The lower (odd)numbered level control works both channels.
Operation Manual

BRIDGE DUAL
CH 2

DUAL
CH 1

CH 4
DUAL BRIDGE

CH 3
DUAL

See the Crown
Amplifier Application Guide, available online at www. crownaudio.com, for pin assignments for commonly used connector types.

Figure 3.8 System Wiring and Control Settings, Bridge-Mono Mode, 16/8 Ohm.
100V

BRIDGE DUAL
CH 2

DUAL
CH 1

CH 4
DUAL BRIDGE

CH 3
DUAL

Figure 3.9 System Wiring and Control Settings, Bridge-Mono Mode, 100V

page 9

3 Setup

3.7 Connect to AC Mains
Connect your amplifier to the AC mains power source (power outlet) with the supplied AC power cordset. First, connect the IEC end of the cordset to the IEC connector on the amplifier; then, plug the other end of the cordset to the AC mains.
WARNING: 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. The AC mains voltage and current must be sufficient to deliver the power you expect. If the AC line voltage varies out of an acceptable range, the amplifier’s power supply turns off and the blue Power LED flashes. The amplifier will turn back on when the AC line voltage returns to safe operating levels. Figure 3.10 provides voltage limits for all amplifier AC voltage configurations. Also, the amplifier must be run within the specified mains 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.

Models

100VAC (CTs 8200
only) 120 VAC units

Under-Voltage Limit
90VAC
108VAC

Over-Voltage Limit
110VAC
132VAC

220V/230V/ 240V units

198VAC

264VAC

Figure 3.10 AC Under-Voltage and Over-Voltage Limits for Various Amplifier Models

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 Power indicator 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 installation changes, don’t forget to disconnect the power cord.
For help with determining your system’s optimum gain structure (signal levels) please refer to the Crown Amplifier Application Guide, available online at www.crownaudio.com.

CTs Power Amplifiers

CTs Power Amplifiers
4 Operation

4.1 Precautions
Your amplifier is protected from internal and external faults, but you should still take the following precautions for optimum performance and safety:
1. Before use, your amplifier first must be configured for proper operation, including input and output wiring hookup. Improper wiring can result in serious operating difficulties. For information on wiring and configuration, please consult the Setup section of this manual or, for advanced setup techniques, consult Crown’s Amplifier Application Guide available online at www. crownaudio.com.
2. Use care when making connections, selecting 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. WARNING: 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, and may also void the product’s warranty.
6. Do not operate the amplifier with the red Clip LEDs 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 accuracy, and loudspeaker damage may result.
8. Use caution when operating the amplifier with a 2-ohm load impedance on 1 channel. Do not operate the amplifier with less than a 2-ohm load impedance per channel when driving more than 1 channel. Due to the amplifier’s output protection, such a configuration may result in premature clipping, speaker damage or a blown power fuse.
Remember: Crown is not liable for damage that results from overdriving other system components.

page 10

Operation Manual

Operation Manual

page 11

4 Operation
4.2 Front Panel Controls and Indicators
Note: CTs 8200 is shown. Some CTs 4200 features are in different locations.
A. Bridge Mode Indicator Yellow LED, one per channel pair, illuminates when the channel pair’s Mode Switch is set to the “Bridge” position. If Mode switch is changed while amplifier is powered up, Bridge LED will flash, indicating that the amplifier must be powered off and on to reset the Mode.
B. Ready Indicator Green LED, one per channel, illuminates when the channel is initialized and ready to produce audio output.

C. Signal Indicator
Green LED, one per channel, illuminates to indicate the presence of input signals above ­40 dBu.
D. Clip Indicator
Red LED, one per channel, illuminates when the THD of the channel’s output signal rises to a level typically considered as the onset of audible clipping. The Clip Indicator also will illuminate during Thermal Level Control (TLC) or input overload.
E. Thermal Indicator
Red LED, one per channel, flashes when the channel has shut down due to thermal stress or overload. If the power supply goes into thermal overload, all channel LEDs will flash.

CTs Power Amplifiers
F. Fault Indicator Red LED, one per channel, illuminates when the amplifier output channel has stopped operating.
G. Ventilation Grille Front-to-rear forced airflow.
H. Data Indicator Yellow LED indicates IQ Loop data activity (if the amplifier is equipped with an IQ-MC module, and connected to an IQ Loop).
I. Power Indicator Blue LED indicates amplifier has been turned on and AC power is available. Indicator also flashes if the amplifier shuts off due to an under/over-voltage condition on the AC mains.
J. Power Switch Amplifier is on when the switch is in the IN position.

CTs Power Amplifiers
4 Operation
4.3 Back Panel Controls and Connectors
Note: CTs 8200 is shown. Some CTs 4200 features are in different locations.
K. AC Power Cord Connector Standard IEC type 320 inlet. 120V models: 15-amp. 220-240V models: 10-amp. Voltage is indicated above IEC inlet.
L. Output Connectors One four-pole terminal strip for every two channels with touch-proof cover. Accepts up to 10 AWG terminal forks. To connect outputs, first remove the touch-proof cover plate covering the terminal strip by removing the screw which holds it in place.

M. Accessory Panel CTs 4200: Accepts an optional IQ-MC4A or VCA-MC4A module.
CTs 8200: Accepts an optional IQ-MC8 or VCA-MC8 module (explained in Section 5.3.1, Control Modules).
N. Channel Level Controls One 21-position detented rotary potentiometer per channel, ranging from infinity (-70 dB) to 0 dB attenuation. Refer to Section 5.2.4 for precise dB attenuation increments for each detent.
O. Input Connectors Removable Phoenix-style barrier connectors for balanced input.

P. Mode Switch
Used on each consecutive pair of channels, this four-position switch is used to select the amplifier’s mode of operation: Dual 8/4 ohms, Dual 70V, Bridge- Mono 16/8 ohms, and Bridge-Mono 100V.
IMPORTANT: Be sure to power off the amplifier before change the Modeswitch setting. If this is not done, the Bridge light will flash to indicate that the power must be cycled off and back on to reset the mode.
Q. Cooling Vents
Front-to-rear forced airflow.

page 12

Figure 4.1 CTs 8200 front panel.

Operation Manual

Operation Manual

Figure 4.2 CTs 8200 back panel (shown with touch-proof cover removed).

page 13

5 Advanced Features and Options
NOTE: For more information about these Crown amplifier features, please visit the Crown website at www.crownaudio.com.
5.1 Protection Systems Your Crown amplifier provides extensive protection and diagnostic capabilities, including thermal level control, fault indicators, automatic high-pass filtering, DC protect, AC under-/over-voltage protection, inrush limiting, and variable-speed fans.
5.1.1 Thermal Level Control (TLC) If an amplifier channel starts to overheat, the TLC circuit will engage that channel’s input compressor. By compressing the input, the amplifier will not generate as much heat and will have a chance to cool down. The degree of compression is proportional to the amount of overheating. If the channel becomes too hot for safe operation even after full TLC limiting, the channel will shut off, and the Thermal Indicator for that channel will flash brightly to alert the user that a state of thermal stress or overload has cause the channel to shut down.
5.1.2 Fault If an amplifier channel requires service, the corresponding Fault indicator will illuminate to alert the user of this condition. If this occurs, return the amplifier to the Crown factory or to an authorized Crown service center.
5.1.3 Fault Isolation Topology (FIT) Crown’s new FIT (Fault Isolation Topology) design isolates channel-specific faults, and prevents them from affecting remaining channels. If a CTs multi-channel amp is powering multiple zones, and a channel fails, the other zones continue to operate. FIT makes the CTs 4200 and CTs 8200 the most trustworthy multi-channel amplifiers in the business!

5.1.4 35-Hz High-Pass Filter
A fixed 35-Hz (70-Hz in CTs 4200) high-pass filter per channel pair is automatically inserted when the mode switch is set to either of the constant- voltage settings. The high-pass filter corner frequency can be set to 70 Hz, or bypassed, with a service option.
5.1.5 AC Under-/Over-Voltage
Protection
If the AC line voltage varies out of an acceptable range, the amplifier’s power supply turns off and the blue Power LED flashes. The amplifier will turn back on when the AC line voltage returns to safe operating levels. Figure 5.1 provides voltage limits for all amplifier AC voltage configurations. Also, the amplifier must be run within the specified mains frequency requirements (indicated on the amplifier’s back panel label). If you are unsure of the output voltage of your AC mains, consult your electrician.

Models

Under-Voltage Limit

Over-Voltage Limit

100VAC (CTs 8200 only)

90VAC

110VAC

120 VAC units

108VAC

132VAC

220V/230V/ 240V units

198VAC

264VAC

Figure 5.1 AC Under-Voltage and Over-Voltage Limits for Various Amplifier
Models

5.1.6 Power Fuse A fuse protects the amplifier from excessive AC current draw.
5.1.7 Inrush Limiting A soft-start circuit in the power supply minimizes the amplifier’s current draw during power-on.
5.1.8 Variable-speed Fans Continuously variable speed fans direct the airflow through the amplifier for cooling.

page 14

CTs Power Amplifiers
5.2 Advanced Features
5.2.1 Switching Power Supply Crown’s new Switching Power Supply minimizes the amplifier’s weight. Typical non-switching power supplies require large, heavy transformers in order to produce the required power at the output stage. These transformers must be large to absorb the substantial waste that occurs when operating at 50 to 60 Hz (standard AC supplied by the power company). By contrast, switching power supplies can operate with a much smaller (and lighter) transformer because they first convert the AC up to a much higher frequency, thereby reducing waste. The power supply is voltage-specific, allowing use in regions using 120V/60Hz, 220V/50Hz, 230V/50Hz, 240V/50Hz, and 100V/50Hz AC mains.
5.2.2 Mode Switch Each consecutive pair of channels has one four-position switch that selects the amplifier’s mode of operation. The switch positions are: · Dual mode for 4 or 8 ohm operation. · Dual mode for 70V constant- voltage
operation. · Bridge-Mono mode for 8 or 16 ohm operation. · Bridge-Mono mode for 100V constant-voltage
operation. Be sure to turn off the amplifier before changing the Mode-switch setting.
5.2.3 Bridge Mode Indicator This yellow LED indicates when the amplifier’s mode switch is set to the Bridge position. Each consecutive pair of channels has one Bridge LED.
Operation Manual

CTs Power Amplifiers
5 Advanced Features and Options
5.2.4 Channel Level Control The signal level for each input can be attenuated accurately by adjusting the 21-step Level Control (see Section 4.3). Figure 5.2 shows the amount of attenuation in dB for each detent.
Note: Attenuation per detent varies with operating mode since gain varies with operating mode. Attenuation amounts shown may vary ±6%.

ATTENUATION in dB

Detent 0 (full CCW)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 (full CW)

4/8 Ohm 68.31 67.54 32.23 25.46 21.83 19.23 17.12 15.36 13.76 12.28 10.84 9.51 8.28 7.09 6.30 4.92 3.82 2.62 1.35 0.01 0.00

70V 72.90 72.06 36.61 29.74 25.87 23.20 20.94 19.02 17.22 15.53 13.90 12.32 10.87 9.45 8.11 6.70 5.26 3.70 1.90 0.01 0.00

100V 71.02 70.26 34.90 28.00 24.22 21.58 19.40 17.53 15.79 14.20 12.62 11.16 9.81 8.45 7.22 5.94 4.63 3.21 1.66 0.01 0.00

Figure 5.2 Level-control Attenuation per Detent in CTs Multichannel Amplifiers

Operation Manual

page 15

5 Advanced Features
and Options
5.3 Options Below are some available options. For current options, visit the Crown website at www. crownaudio.com.
5.3.1 Control Modules VCA-MC (VCA module): See Figure 5.3. Provides independent remote level control for each channel. 4-pin removable Phoenix- style barrier connectors provide the +10VDC control voltage, ground, and control lines for two amplifier channels. Thus, 4channel amplifiers use two connectors; 8-channel amplifiers use four connectors.

Choosing the Right Module To order accessory modules for your amplifier, please refer to the model tag (located on the back panel of the amplifier) for your amplifier’s specific model number. Then refer to the chart below to select the correct accessory for your requirements.

CTs 4200 CTs 4200A CTs 8200 CTs 8200A

VCA MODULE VCA-MC4 VCA-MC4A VCA-MC8 VCA-MC8

Wall-Mount level control panels for use with VCA module:
1-VCAP: See Figure 5.4. Used in conjunction with a VCA-MC module, this is a single-gang panel providing remote volume control for one or more CTs amplifier channels. The potentiometer on the panel is wired directly to one of the VCA connectors on the VCA-MC.
4-VCAP: See Figure 5.5. This is a two-gang panel providing remote volume control for four or more CTs amplifier channels. The potentiometers on the panel are wired directly to the respective VCA connector on the VCA-MC.
Refer to the VCA-MC Operation Manual for wiring of the single or multiple channel level control.
Your amplifier may have come with a VCA-MC module already factory-installed, or your choice of MC modules can be easily added to the amplifier by any authorized Crown Service Center. Contact Crown Technical Support for more details.
5.3.2 Input Sensitivity
The CTs 4200 and CTs 8200 have a fixed input sensitivity of 1.4V. A service option is available for other input sensitivities.

Figure 5.3 VCA-MC8 Module

CTs Power Amplifiers
Figure 5.4 1-VCAP Module Figure 5.5 4-VCAP Module

CTs Power Amplifiers
6 Troubleshooting

page 16

Operation Manual

Operation Manual

CONDITION: Power indicator is off. POSSIBLE REASON · The amplifier has lost AC power. · The amplifier’s Power switch is off. · The amplifier is not plugged into the
power receptacle. · The amplifier output level is so high that
the power supply fuse has blown. Verify that input levels and output impedances are within safe ranges. Refer the unit to an authorized Crown service center for fuse replacement.
CONDITION: Power indicator is flashing. POSSIBLE REASON: · The AC line voltage has dropped below
10% or has risen above 10% of the nominal line voltage of the power supply. Refer to section 5.1.6 for specific voltage requirements.
“Off/Flashing/On” above means that the LED can be off, or flashing, or on.

CONDITION: Fault indicator is on. POSSIBLE REASON: · The amplifier channel has stopped
operating. Return the unit to an authorized Crown Service Center.
CONDITION: Distorted sound. POSSIBLE REASON: · Load is wired incorrectly or Dual/Bridge
mode switch is set incorrectly. Check both. · Input is overloaded by a signal level that is too high. Turn down your amplifier level controls, or turn down the input signal, until the clip light goes out. · Thermal Level Control (TLC) is active. Note: If the signal sounds distorted even though the Clip LED is off, the input signal is distorted. Check gain staging and output levels of the mixer or preamp.
page 17

6 Troubleshooting

CONDITION: No sound, even though the amp has power. Power LED is on without flashing and the amp is receiving an input signal. Signal indicator is flashing.
· Speakers not connected. · Open circuit due to speaker failure.
· There is a short on the amplifier output. First disconnect your speakers from the affected channel(s) one by one to determine if one of the loads is shorted.
· DC or excessive low-frequency signal at the amplifier’s output has enabled speaker protection.

page 18

“Off/Flashing/On” above means that the LED can be off, or flashing, or on.

CTs Power Amplifiers
CONDITION: Thermal indicator is flashing. POSSIBLE REASON: · The amplifier has become too hot for
safe operation. Check for loads less than 2 ohms, and for excessive input levels. Check for proper ventilation and proper mode-switch setting. Driving lowimpedance loads while in high-voltage mode can cause overheating.
CONDITION: All channel thermal indicators are flashing. POSSIBLE REASON: · Power supply thermal overload.
CONDITION: No input signal. (Signal indicator is not flashing even though audio is applied and channel is ready). POSSIBLE REASON: · Input signal level is very low. · Input cables have become disconnected.
CONDITION: Bridge LED is flashing. POSSIBLE REASON: · The mode switch was switched while the
power was on.
Operation Manual

CTs Power Amplifiers

7 Specifications
Figure 7.1 CTs 4200 Power Chart

CTs 4200: MINIMUM GUARANTEED POWER (in watts, 0.1% THD) 120VAC, 60 Hz units

Dual Mode

Channels Driven

4

2

1

1 kHz

20 Hz – 20 kHz

1 kHz

1 kHz

20 Hz – 20 kHz

4 Ohm

260

8 Ohm

180

70V (25 Ohm) at 0.1% THD 220

Bridge-Mono Mode

Channel Pairs Driven

215 190 220*
1 kHz

270 210 240
2
20 Hz – 20 kHz

270

225

220

210

250

245*

1 kHz

1
20 Hz – 20 kHz

8 Ohm 16 Ohm 100V (50 Ohm) at 0.1% THD

520

430

560

450

400

380

440

420

220

220*

250

245*

• Constant Voltage full bandwidth power ratings support 100 Hz – 20 kHz due to automatic high-pass filters.

Figure 7.2 CTs 8200 Power Chart

CTs 8200: MINIMUM GUARANTEED POWER (In watts, 0.1% THD) 120VAC, 60 Hz units

Dual Mode

Channels Driven

8

4

2

1

1 kHz

20 Hz – 20 kHz

1 kHz

1 kHz

1 kHz

20 Hz – 20 kHz

4 Ohm

200

8 Ohm

160

70V (25 Ohm) at 0.1% THD

200

Bridge-Mono Mode

Channel Pairs Driven

175

250

260

155

190

200

185*

220

240

1 kHz

4
20 Hz – 20 kHz

2
1 kHz

270

230

220

220

250

230*

1 kHz

1
20 Hz – 20 kHz

8 Ohm 16 Ohm 100V (50 Ohm) at 0.1% THD

400

350

500

540

460

320

310

380

440

440

200

185*

220

250

230*

• Constant Voltage full bandwidth power ratings support 100 Hz – 20 kHz due to automatic high-pass filters.

Operation Manual

page 19

CTs Power Amplifiers

7 Specifications

The following specifications apply to all models in Dual 8/4 ohm mode with 8-ohm loads unless otherwise specified.

Performance
Frequency Response (at 1 watt, 20 Hz – 20 kHz)
Phase Response (at 1 watt, 10 Hz – 20 kHz)
Signal to Noise Ratio below rated power (20 Hz to 20 kHz)
Total Harmonic Distortion (THD) at 1 watt, from 20 Hz to 20 kHz
Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1, from 163 milliwatts to full bandwidth power, typical
Damping Factor: 10 Hz to 400 Hz
Crosstalk (below rated power, 20 Hz to 1 kHz)
Common Mode Rejection (CMR) (20 Hz to 1 kHz)
DC Output Offset (Shorted input)
Input Impedance nominally balanced, nominally unbalanced
Maximum Input Level (before input compression)
Load Impedance (Note: Safe with all types of loads) Stereo Bridge Mono
Voltage Gain (at maximum level setting), 1.4V sensitivity 4/8 Ohm Operation 70V Operation 100V Operation
Required AC Mains (model dependent)
Power Draw at Idle (120VAC mains, all channels in 4/8 ohm mode)
Power Draw at Idle (120VAC mains, all channels in 70V mode)
Cooling
Dimensions: Width, Height, Depth
Net Weight, Shipping Weight

CTs 4200 ± 0.5 dB ± 35°
100 dB unweighted < 0.05% < 0.05%

180 > 80 dB > 50 dB < ± 5 mV 20 kilohms, 10 kilohms + 20 dBu
4/8 and 25 ohms (70V) 8/16 and 50 ohms (100V)
20:1 (26 dB) 50:1 (34 dB) 71.4:1 (37 dB) 120V, 60 Hz. 220/230/240V, 50 Hz
70W 114W Continuously variable speed forced air, front-to-back airflow 19 in. (48.3 cm) W x 3.5 in. (8.9 cm) H x 16.25 in. (41.3 cm) D 26 lb. 6 oz. (12 kg), 30 lb. 14 oz. (14 kg)

CTs 8200 ± 0.5 dB ± 35°
100 dB unweighted < 0.05% < 0.05%

180 > 80 dB > 50 dB < ± 5 mV 20 kilohms, 10 kilohms + 20 dBu
4/8 and 25 ohms (70V) 8/16 and 50 ohms(100V)
20:1 (26 dB) 50:1 (34 dB) 71.4:1 (37 dB) 100V, 50/60Hz. 120V, 60 Hz. 220/230/240V, 50 Hz
70W 114W Continuously variable speed forced air, front-to-back airflow 19 in. (48.3 cm) W x 5.25 in. (13.3 cm) H x 16.25 in. (41.3 cm) D 36 lb. 6 oz. (16.5 kg), 47 lb. (21.3 kg)

CTs Power Amplifiers
7 Specifications
Figure 7.3 CTs 8200 Typical Frequency Response (1 W)

Figure 7.4 CTs 8200 Typical Phase Response (1 W)

page 20

Operation Manual

Operation Manual

Figure 7.5 CTs 8200 Typical Damping Factor vs. Frequency

page 21

7 Specifications
page 22

Figure 7.6 CTs 8200 Typical Output Impedance vs. Frequency Figure 7.7 CTs 8200 Typical Crosstalk vs. Frequency

CTs Power Amplifiers

CTs Power Amplifiers
8 AC Power Draw and Thermal Dissipation

AC Power Draw and Thermal Dissipation:
Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz. Typical line impedance used. Measurements made with 120VAC mains. Line current figures for 230VAC units derived by multiplying 120VAC figures by 0.5. Data based on all channels driven.

At Idle (8.4 Ohm mode ) At Idle (70/100V mode) 1/8th Power Pink Noise
Typical of program material just at clip.
1/3rd Power Pink Noise
Typical of program material with severe clipping.

Load
8 Ohms/Ch. 16 Ohms Bridge 4 Ohms/Ch. 8 Ohms Bridge 70V/Ch. 100V Bridge 8 Ohms/Ch. 16 Ohms Bridge 4 Ohms/Ch. 8 Ohms Bridge 70V/Ch. 100V Bridge

Rated Power
200×4 400×2 260×4 520×2 220×4 220×2 200×4 400×2 260×4 520×2 220×4 220×2

CTs 4200

Line Current Line Current

120VAC

230VAC

5.2

2.6

7.8

3.9

5.3

2.7

7.6

3.8

11.8

5.9

7.9

4.0

watts in
70 114 400 639 427
648 1005 668

Watts
watts out
0 0

dissapated
70 114

Thermal Dissipation

Btu/hr

kcal/hr

239

60

389

98

99

301

1027

259

134

505

1722

434

110

318

1084

273

257

391

1336

337

349

655

2236

564

286

382

1303

329

Operation Manual

Operation Manual

page 23

8 AC Power Draw and Thermal Dissipation

CTs Power Amplifiers

AC Power Draw and Thermal Dissipation:
Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz. Typical line impedance used. Measurements made with 120VAC mains. Line current figures for 230VAC units derived by multiplying 120VAC figures by 0.5. Data based on all channels driven.

At Idle (8.4 Ohm mode ) At Idle (70/100V mode) 1/8th Power Pink Noise
Typical of program material just at clip.
1/3rd Power Pink Noise
Typical of program material with severe clipping.

Load
8 Ohms/Ch. 16 Ohms Bridge 4 Ohms/Ch. 8 Ohms Bridge 70V/Ch. 100V Bridge 8 Ohms/Ch. 16 Ohms Bridge 4 Ohms/Ch. 8 Ohms Bridge 70V/Ch. 100V Bridge

Rated Power
160×8 320×4 200×8 400×4 200×8 200×4 160×8 320×4 200×8 400×4 200×8 200×4

CTs 8200

Line Current Line Current

120VAC

230VAC

8.7

4.3

13.3

6.7

10.1

5.1

13.1

6.5

19.3

9.7

15.3

7.7

watts in
70 114 725 1155 857
1136 1748 1344

Watts
watts out
0 0

dissapated
70 114

Thermal Dissipation

Btu/hr

kcal/hr

239

60

389

98

172

553

1889

476

218

938

3200

807

203

653

2230

562

437

699

2385

601

557

1190

4062

1024

552

792

2702

681

page 24

Operation Manual

CTs Power Amplifiers

9 Service

Crown amplifiers are quality units that rarely require servicing. Before returning your unit for service, please contact 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 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.
*Warranty is only valid within the United States of America. For information on Warranty outside of the U.S.A, please contact your local distributor.
9.1 International and Canada Service Service may be obtained from an authorized service center. (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.
9.2 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.
9.2.1 Service at a US Service Center This method usually saves the most time and effort. Simply 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. Remember 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.
9.2.2 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 serviceable 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 sending 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.
9.2.3 Factory Service Shipping Instructions:
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. Use a 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.
9.2.4 Packing Instructions Important: These instructions must be followed. If they are not followed, Crown Audio, Inc. assumes no responsibility for damaged goods and/or accessories that are sent with your unit.
1. Fill out and include the Crown Audio Factory Service Information sheet in the back of this manual.
2. Do not ship any accessories (manuals, cords, hardware, 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 minimum 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 warranty.
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 endcushions 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.
9.2.5 Estimate Approval Approval of estimate must be given within 30 days after being notified by Crown Audio Inc. Units still in the possession of Crown after 30 days of the estimate will become the property of Crown Audio Inc.
9.2.6 Payment of Non-Warranty Repairs Payment on out-of-waranty repairs must be received within 30 days of the repair date. Units unclaimed after 30 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

page 25

page 26

THIS PAGE INTENTIONALLY LEFT BLANK

CTs Power Amplifiers

CTs Power Amplifiers
10 Warranty
5
YEAR

UNITED STATES & 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 SUBSEQUENT OWNER of each NEW Crown product, for a period of five (5) 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 Warranty.
*Warranty is only valid within the United States of America. For information on Warranty outside of the U.S.A, please contact your local distributor.
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 intentional 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 reason for failure (except as excluded), by repair, replacement, or refund. We may not elect refund unless you agree, or unless we are unable to provide 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 interest, insurance, closing costs, and other finance charges less a reasonable depreciation on the product from the date of original purchase. Warranty work can only be performed at our authorized 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 defective 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 foreign country and the port of entry in the United States including the return shipment, and all taxes, duties, and other customs fees for such foreign shipments.)
HOW TO OBTAIN WARRANTY
SERVICE
You must notify us of your need for warranty service 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 reasonable 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 authorized service 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. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATIONS OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

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

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.

5/11

Operation Manual

Operation Manual

page 27

page 28

NOTES

CTs Power Amplifiers Operation Manual

CTs Power Amplifiers

CUT ON THIS LINE

PRODUCT REGISTRATION
Online registration is also available at http://crownweb.crownintl.com/webregistration.

Crown Audio, Inc. 1718 W. Mishawaka Rd. Elkhart, IN 46517-9439 Phone: 574-294-8000 Fax: 574-294-8329 www.crownaudio.com

*Warranty is only valid within the United States of America. For information on Warranty outside of the U.S.A, please contact your local distributor.

When this form is used to register your product, it may be mailed or faxed.

Crown Audio, Inc. 1718 W Mishawaka Rd Elkhart IN 46517

Fax: 574-294-8329

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 e.g. IT8000, CDi1000, PCC160 ____ ____ ____ ____

• SERIAL # e.g. 8000000000 ____ ____ ____ ____

• PURCHASE DATE mo/day/yr
  __ / / __ / / __ / / __ / /

Product purchased from: *(Business/Individual) ___ Country: ____ Comments:

Operation Manual

page 29

page 30

THIS PAGE INTENTIONALLY LEFT BLANK

CTs Power Amplifiers Operation Manual

CTs Power Amplifiers

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: ____
PRODUCT RETURN INFORMATION

Serial Number: ____ Purchase Date:

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

I have open account payment terms. Purchase order required. PO#:

COD

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.) Credit card 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 31

References

• Crown Audio - Professional Power Amplifiers
• Linden Lab
• Crown Audio - Professional Power Amplifiers | English (US)
• Support | Crown Audio - Professional Power Amplifiers | English (US)

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>