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POWER - TECH
™
Models:
Power-Tech 1, 2 & 3
Some models may be exported under the name Amcron .
®
©
2000 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana
46515-1000 U.S.A. Telephone: 219-294-8000. Power-Tech amplifiers
are produced by the Professional Audio Unit of Crown International,
Inc. Trademark Notice: Power-Tech
™
is a trademark and Amcron ,
®
Crown ,
IOC
and ODEP
®
®
®
are registered trademarks of Crown
International, Inc. Other trademarks are the property of their respective
owners.
125351-4
02/00
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Table of Contents
Related Manuals for Crown POWER-TECH 3
Summary of Contents for Crown POWER-TECH 3
- Page 1 POWER - TECH ™ Models: Power-Tech 1, 2 & 3 Some models may be exported under the name Amcron . ® © 2000 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone: 219-294-8000. Power-Tech amplifiers are produced by the Professional Audio Unit of Crown International, Inc.
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Page 2: North America
NORTH AMERICA SUMMARY OF WARRANTY SUMMARY OF WARRANTY The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL... -
Page 3: Magnetic Field
Crown representative or our Technical Support Group. Crown Audio Technical Support Group Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A. Phone: 800-342-6939 (North America, Puerto Rico and Virgin Islands) or 219-294-8200 Fax: 219-294-8301 Fax Back (North America only): 800-294-4094 or 219-293-9200 Fax Back (International): 219-294-8100 Internet: http://www.crownaudio.com... -
Page 4: Table Of Contents
Power-Tech Series Power Amplifiers CONTENTS Important Safety Instructions 1 Welcome ........... 5 1) Read these instructions. 1.1 Unpacking ..............5 2) Keep these instructions. 1.2 Features ................ 5 3) Heed all warnings. 4) Follow all instructions. 2 Installation ..........6 5) Do not use this apparatus near water. -
Page 5: Welcome
Power-Tech Series Power Amplifiers Fig. 1.1 Power-Tech Front and Back Panels 1 Welcome 1.2 Features Rugged, professional power amplifier built for the road. Congratulations on purchasing a Crown Power- Tech ™ amplifier. Power-Tech amplifiers are compact, Mounts in EIA standard 19-inch (48.3-cm) rack. professional stereo power amplifiers engineered to Quick-access front panel power switch and level meet the most demanding sound reinforcement... -
Page 6: Installation
Power-Tech Series Power Amplifiers 2 Installation 2.1 Stereo 1. Turn down the level controls (fully counterclock- Always remove power from the unit and turn the level wise) and turn off the amplifier. controls off (fully counterclockwise) when making or 2. Set the back panel stereo/mono switch to Stereo. breaking connections. -
Page 7: Stereo Mode
Power-Tech Series Power Amplifiers Fig. 2.3 Three System Connection Methods Reference Manual Page 7... -
Page 8: Input Sensitivity Adjustment
When set to 26-dB gain, the Power-Tech 1 requires a 2.1-volt input, the Power-Tech 2 requires a 2.6-volt input and the Power-Tech 3 requires a 3.3-volt input to deliver full output into an 8-ohm load. Fig. 2.5 Loudspeaker Fuse Nomograph each model are listed by country (or region) in Figure 2.6. -
Page 9: Operation
Power-Tech Series Power Amplifiers 3 Operation 3.1 Precautions 3.3 Protection Systems Power-Tech amplifiers have extensive protection Although your amplifier is protected from external faults, the following safety precautions are recommended: systems, including ODEP , ultrasonic/RF protection, drive protection, transformer thermal protection and fuses or 1. -
Page 10: Transformer Thermal Protection
Power-Tech amplifier, it still protects itself— 2.3 for information on changing this switch). And the and your investment—from damage. Power-Tech 3 has a back panel reset switch that is used to reset the circuit breaker that protects the power 3.3.5 Fuses and Circuit Breakers supplies. -
Page 11: Specifications
Power-Tech 2 : 100 and 120 VAC units draw up to 10 sensitivity. amps of current; 220 and 240 VAC units draw up to 5 Power-Tech 3 : 84:1 ±12% or 38 dB ±0.5 dB at 0.775-volt amps. sensitivity; 46:1 ±12% or 33 dB ±1 dB at 1.4-volt Power-Tech 3 : 100 and 120 VAC units draw up to 15 sensitivity. - Page 12 Input Impedance: Nominally 20 K ohms, balanced; 10 K kg) shipping weight. ohms, unbalanced. Power-Tech 3 : 36 pounds, 8 ounces (16.6 kg) net; 40 Output Connector: Two sets of color-coded binding pounds, 8 ounces (18.4 kg) shipping weight. posts.
- Page 13 Power-Tech Series Power Amplifiers Crown specifications are guaranteed for three years. In an effort to provide you with as much information as possible about the high power-producing capabilities of your amplifier, we have created the following power matrices. Minimum Power Specifications Crown’s minimum power specifications represent the absolute smallest amount of output power you can expect from your amplifier when it is driven to full output under the given conditions.
- Page 14 Power-Tech Series Power Amplifiers Fig. 4.2 Power-Tech 2 Minimum Power Matrix Fig. 4.3 Power-Tech 3 Minimum Power Matrix Page 14 Reference Manual...
- Page 15 Power-Tech Series Power Amplifiers Maximum Power Specifications Crown’s maximum power specifications represent the largest amount of output power you can expect from your amplifier when it is driven to full output under the given conditions. These specifications can be used to prevent loudspeaker and hearing damage. The maximum power matrices include specifications for single cycle and 40-millisecond burst sine waves.
- Page 16 Power-Tech Series Power Amplifiers Fig. 4.5 Power-Tech 2 Maximum Power Matrix Fig. 4.6 Power-Tech 3 Maximum Power Matrix Page 16 Reference Manual...
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Page 17: Accessories
Power-Tech Series Power Amplifiers 5 Accessories There are two accessories available at the time of this Because the MT-XLR connectors are in parallel with the printing: the MT-XLR and the MT-BB . Important: The amplifier’s built in phone connectors, an input signal fed MT-XLR and MT-BB must be installed at a Crown to either input can be fed to another amplifier from the Factory Service Center or the Crown factory. -
Page 18: Service
Remember to transport the unit in the original factory pack. A list of authorized service centers in your area can be obtained from our Technical Support Group. Crown Audio Customer Service 6.2.2 Factory Service Technical Support / Factory Service To obtain factory service, fill out the service information Plant 2 SW, 1718 W. - Page 19 Power-Tech Series Power Amplifiers Crown Factory Service Information Shipping Address: Crown International, Inc., Factory Service, Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, IN U.S.A. 46517 Phone: 1-800-342-6939 or 1-219-294-8200 Fax: 1-219-294-8124 Owner’s Name: _________________________________________________________________________ Shipping Address: ______________________________________________________________________ Phone Number: ________________________________________________________________________ Model: ________________________ Serial Number: ______________ Purchase Date: ___________ NATURE OF PROBLEM (Be sure to describe the conditions that existed when the problem occurred and what attempts were made to correct it.)