Crown S Series Operation Manual

Crown S Series Operation Manual

Crown audio operation manual power amplifier s series

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S-Series
S-2

Operation Manual

S-3
Obtaining Other Language Versions: To obtain information in another language about the use of this product, please contact your
local Crown Distributor. If you need assistance locating your local distributor, please contact Crown at 574-294-8000.
This manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible
situation which may arise during installation, operation or maintenance.
The information provided in this manual was deemed accurate as of the publication date. However, updates to this information may have
occurred. To obtain the latest version of this manual, please visit the Crown website at www.crownaudio.com.
Trademark Notice: Crown, Crown Audio, and Amcron are registered trademarks of Crown International. Other trademarks are the
property of their respective owners.
®
Some models may be exported under the name Amcron.
®
©2005 by Crown Audio
Inc., 1718 W. Mishawaka Rd., Elkhart, IN 46517-9439 U.S.A. Telephone: 574-294-8000
126941-3A
6/05

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Summary of Contents for Crown S Series

  • Page 1: Operation Manual

    The information provided in this manual was deemed accurate as of the publication date. However, updates to this information may have occurred. To obtain the latest version of this manual, please visit the Crown website at www.crownaudio.com. Trademark Notice: Crown, Crown Audio, and Amcron are registered trademarks of Crown International. Other trademarks are the property of their respective owners.
  • Page 2: Important Safety Instructions

    The exclamation point triangle is used to alert the user to important operating or maintenance instruc- tions. S-Series Power Amplifiers IMPORTANT S Series amplifiers require Class 2 output wiring. MAGNETIC FIELD CAUTION! Do not locate sensitive high-gain equip- ment such as preamplifiers or tape decks directly above or below the unit.
  • Page 3: Declaration Of Conformity

    S-Series Power Amplifiers Crown International, Inc. Issued By: Crown International, Inc. 1718 W. Mishawaka Road Elkhart, Indiana 46517 U.S.A. Equipment Type: Commercial Audio Power Amplifiers Family Name: S-Series Model Names: S-2, S-3 EMC Standards: EN 55103-1:1995 Electromagnetic Compatibility - Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 1: Emissions EN 55103-1:1995 Magnetic Field Emissions-Annex A @ 10 cm and 1 M EN 61000-3-2:1995+A14:2000 Limits for Harmonic Current 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...
  • Page 4: Table Of Contents

    Table of Contents Important Safety Instructions ... 2 Declaration of Conformity ... 3 1 Welcome ... 5 1.1 Features ... 5 1.2 How to Use This Manual ... 5 2 Setup ... 6 2.1 Unpack Your Amplifier ... 6 2.2 Install Your Amplifier ... 6 2.3 Ensure Proper Cooling ...
  • Page 5: Welcome

    S-Series Power Amplifiers Operation Manual 1 Welcome • Versatile; handles a wide range of speaker impedances and outputs. ® • Advanced protection circuitry guards Crown S-Series amplifiers provide profes- against shorted outputs, open circuits, DC, sional audio amplification for a wide range of mismatched loads, general overheating, applications, including digital cinema.
  • Page 6: Setup

    2 Setup 2.1 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.
  • Page 7: Choose Input Wire And Connectors

    S-Series Power Amplifiers 2 Setup 2.4 Choose Input Wire and Connectors You have three choices of input connectors: 1/4-inch (6.35-mm) phone, 3-pin XLR, or barrier strip. You can also use either balanced or unbalanced wiring. Figure 2.3 shows balanced connector pin assignments for XLR and phone.
  • Page 8: Choose Output Wire And Connectors

    2 Setup 2.5 Choose Output Wire and Con- nectors Crown recommends using pre-built or profes- sionally wired, high-quality, two- or four-con- ductor, heavy gauge speaker wires. They should be terminated with Neutrik Speakon NL4FC con- nectors (Figure 2.6) at one end and appropriate connectors to fit your speakers at the other end.
  • Page 9: Wire Your System

    S-Series Power Amplifiers 2 Setup 2.6 Wire Your System 2.6.1 Stereo Mode Make sure the amplifier is turned off and the level controls are turned down before you wire the system. Typical input and output wiring is shown in Figure 2.9. INPUTS: Connect input wiring for each channel.
  • Page 10: Bridge-Mono Mode

    2 Setup 2.6.3 Bridge-Mono Mode Make sure the amplifier is turned off and the level controls are turned down before you wire the system. Typical input and output wiring is shown in Figure 2.11. INPUTS: Connect input wiring to CH 1. OUTPUTS: Connect the speaker across the posi- tive (+) output terminals.
  • Page 11: Input Sensitivity Switch

    S-Series Power Amplifiers 2 Setup 2.7 Input Sensitivity Switch A two-position Input Sensitivity switch is located on the back panel near the input connectors (Figure 2.12). Your amplifier is shipped from the factory with this switch set to the 1.4V position. At this setting, a 1.4V input signal will drive the amplifier to full power into an 8-ohm load when the level controls are turned to maximum.
  • Page 12: Operation

    3 Operation 3.1 Precautions Your amplifier is protected from internal and exter- nal faults, but you should still take the following precautions for optimum performance and safety: 1. Before use, your amplifier first must be config- ured for proper operation, including input and output wiring hookup.
  • Page 13: Controls, Indicators And Connectors

    S-Series Power Amplifiers 3 Operation 3.2 Controls, Indicators and Connectors Figure 3.1 Controls, Indicators & Connectors Operation Manual page 13...
  • Page 14: Front Panel Controls And Indicators

    3 Operation 3.3 Front Panel Controls and Indicators Power Switch The power switch turns the amplifier on or off. Note that dangerous voltages may still be present in the amplifier even when the power switch is in the off position. Before moving the amplifier or making any wiring or instal- lation changes, it is important to also disconnect the power cord from the amplifier or power source.
  • Page 15: Advanced Features And Options

    S-Series Power Amplifiers 4 Advanced Features and Options 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. 4.1 Protection Systems S-Series amplifiers are protected against shorted, open or mismatched loads; over- loaded power supplies;...
  • Page 16: Advanced Features

    4 Advanced Features and Options SST-SBSC-3632T This is a custom three-channel crossover net- work with CD-horn equalization and summed low-frequency output specifically designed for ® use with JBL model 3632T ScreenArray cinema speaker systems installed in cinemas, studio production and post-production envi- ronments.
  • Page 17: Fault Monitoring

    S-Series Power Amplifiers 4 Advanced Features and Options 4.2.2 Fault Monitoring The Fault (RJ-11) jack, which looks like a telephone jack, is located on the back of your S-Series ampli- fier (Figure 4.2). It gives you an easy way to remotely monitor the amplifier’s fault status.
  • Page 18: Options

    4 Advanced Features and Options 4.3 Options 4.3.1 Accessories CE HANDLES Handles complement your amplifier’s appearance, aid in transportation, and facilitate rack mounting and removal. They are available from Crown’s Sales Department; just ask for “CE Handles.” 4.3.2 Alternate Output Connectors For added system flexibility, Crown offers optional secondary output connectors.
  • Page 19: Principles Of Operation

    S-Series Power Amplifiers 5 Principles of Operation For the sake of simplicity, only channel one of the amplifier is described. Signal is presented to the S amplifier through one of three connectors when using the stan- dard input module. Each channel is outfitted with a balanced XLR/phone jack and a barrier strip.
  • Page 20 5 Principles of Operation TO CLIP INDICATOR Figure 5.1 S-Series Amplifier Block BALANCED Diagram INPUTS (Shown with BALANCE Standard Input INPUT STAGE Module) page 20 + HI-VOLTAGE BOOTSTRAP CURRENT SOURCE COMPRESSOR CONTROL TRANSLATOR BUFFER ERROR VARIABLE GAIN STAGE –VCC TO SIGNAL PRESENCE INDICATOR DC PROTECT...
  • Page 21: Troubleshooting

    S-Series Power Amplifiers 6 Troubleshooting CONDITION: Fault indicator is flashing. POSSIBLE REASON: • • • • • The fault status of the amplifier can also be moni- tored remotely by attaching a signal device to the Fault jack located on the amplifier back panel. See Section 4.2.2 for more detail.
  • Page 22: Specifications

    7 Specifications Minimum Guaranteed Power 120 VAC, 60 Hz Units, Stereo mode, per channel, both channels driven 1 kHz with < 0.5% THD 2 ohms 4 ohms 8 ohms 120 VAC, 60 Hz Units, Bridge mono mode 1 kHz with 0.1% THD 4 ohms 8 ohms Performance...
  • Page 23: Service

    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.
  • Page 24: Warranty

    9 Warranty 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...
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  • Page 27: Crown Factory Service Information Form

    Billing address of credit card: __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ Operation Manual Crown Audio Factory Service Information Shipping Address: Crown Audio Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 PLEASE PRINT CLEARLY Model: ____________________________________________ PRODUCT RETURN INFORMATION Fax #: ________________________________________ State/Prov: ________________________________...

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