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.
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.
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...
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 ...
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.
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.
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.
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.
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.
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.
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.
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.
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.
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;...
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.
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.
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.
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.
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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...
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.
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.
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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