Crown Audio K Series user manual

User manual for the device Crown Audio K Series

Device: Crown Audio K Series
Category: Stereo Amplifier
Manufacturer: Crown Audio
Size: 1.44 MB
Added : 7/17/2013
Number of pages: 20
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Abstracts of contents
Summary of the content on the page No. 1

K Series


K1
Operation Manual
2
K2
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

Summary of the content on the page No. 2

K Series Power Amplifiers Important Safety Instructions IMPORTANT 1) Read these instructions. 15) WARNING: TO REDUCE THE RISK OF FIRE 2) Keep these instructions. OR ELECTRIC SHOCK, DO NOT EXPOSE K Series amplifiers require Class 2 output wiring. THIS APPARATUS TO RAIN OR MOISTURE. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. 16) DO NOT EXPOSE TO DRIPPING OR SPLASH- MAGNETIC FIELD ING. DO NOT PLACE OBJECTS FILLED WITH 6) Clean only with a dry clot

Summary of the content on the page No. 3

K Series Power Amplifiers Crown International, Inc. TCF Technical Certificate No: C974CRI1.ABS DECLARATION of CONFORMITY Technical Construction File Route FOR COMPLIANCE QUESTIONS ONLY: Sue Whitfield Issued By: Crown International, Inc. 574-294-8289 1718 W. Mishawaka Road swhitfield@crownintl.com Elkhart, Indiana 46517 U.S.A. Competent Body’s Name and Address: European Representative's Name and Address: Technology International (Europe) Limi

Summary of the content on the page No. 4

K Series Power Amplifiers Table of Contents Important Safety Instructions ................................................ 2 4.2 Front Panel Controls and Indicators ....................... 11 Declaration of Conformity ..................................................... 3 4.3 Back Panel Controls and Connectors ...................... 12 1 Welcome ........................................................................ 5 5 Advanced Features and Options ..............................

Summary of the content on the page No. 5

K Series Power Amplifiers 2 1 Welcome *1 kHz 2 How to Use This K1 Power ® Manual Congratulations on purchasing a Crown • Versatile, handling a wide range of speaker 2 ohm Stereo (per channel) 750W impedances and outputs. K Series amplifier. It is designed to provide very 550W 4 ohm Stereo (per channel) This manual provides you with the necessary high power in a lightweight package, without • Switchable input sensitivity. information to safely and correctly set up and using a coo

Summary of the content on the page No. 6

K Series Power Amplifiers 3 Setup 3.1 Unpack Your Amplifier 3.2 Install Your Amplifier 3.3 Ensure Proper Cooling The K Series amplifier is convection cooled and Please unpack and inspect your amplifier for CAUTION: Before you begin, make sure any damage that may have occurred during your amplifier is disconnected from the uses no fan. If ambient temperatures are high, transit. If damage is found, notify the transpor- power source, with power switch in the the TLC indicators may start to illum

Summary of the content on the page No. 7

K Series Power Amplifiers 3 Setup 3.4 Choose Input Wire and Connectors Crown recommends using pre-built or profes- sionally wired, balanced line (two-conductor plus shield), 22-24 gauge cables and connec- tors. Use either 3-pin male XLR connectors or TRS phone connectors. Figure 3.3 shows connector pin assignments for balanced wiring, and Figure 3.4 shows connec- tor pin assignments for unbalanced wiring. NOTE: Custom wiring should only be per- formed by qualified personnel. Figure 3.4 Unba

Summary of the content on the page No. 8

K Series Power Amplifiers Figure 3.8 3 Setup Stereo Wiring: Stereo Inputs, Stereo Output 3.6.2 Set Input Sensitivity 3.6 Set Up and Wire Your System to Speakers Set the Input Sensitivity switches of each chan- First, turn down the Level controls (fully coun- nel to the desired setting (see Figure 3.7). Two terclockwise) and turn off the amplifier. choices are available: 1.4V for full rated output (33 dB gain), or a fixed voltage gain of 26 dB. 3.6.1 Set the Mono Modes Switches To run in Stereo

Summary of the content on the page No. 9

K Series Power Amplifiers 3 Setup 3.6.5 “Y” Mono Input to Dual Outputs If you want to feed a mono audio signal to two channels, each with its own level control, set the “Y” Input switch ON. This connects both inputs in parallel. You might use this setup if you’re running a monitor speaker on one chan- nel and a main speakers stack on the other Figure 3.10 channel, and you want to feed them the same Wiring for “Y” Mono Input, signal. Dual Output See Figure 3.10. INPUTS: Connect input wiri

Summary of the content on the page No. 10

K Series Power Amplifiers 3 Setup 4 Operation 3.7 Connect to AC Mains 4.1 Precautions Connect your amplifier's power cord to the AC Your amplifier is protected from internal and mains power source (power outlet). external faults, but you should still take the fol- lowing precautions for optimum performance WARNING: The third prong of this con- and safety: nector (ground) is an important safety feature. Do not attempt to disable this 1. Before use, your amplifier must be config- ground conn

Summary of the content on the page No. 11

K Series Power Amplifiers 4 Operation quick start-up test. Then the Enable indicator 4.2 Front Panel Controls and begin to protect itself with its TLC protection will turn on to its full brightness. If no signal is Indicators system by subtly and dynamically reducing the present, the Enable indicator will switch to a gain as needed. The TLC indicators gradually Figure 4.1 below points out the controls, indi- dimmer green. turn brighter as the TLC protection becomes cators and connectors

Summary of the content on the page No. 12

K Series Power Amplifiers 4 Operation 4.3 Back Panel Controls and input signals of both channels together, in par- J. Power Fuse Connectors allel. To operate in dual mode, set this switch to This fuse protects the high-voltage power Figure 4.3 below points out the controls and OFF. See Section 3.6.1 for more detail. supply. connectors on the back panel of the K Series G. XLR-type Input Connector amplifiers. The K1 and K2 look identical except K. Power Cord for product nameplates and fuse spec

Summary of the content on the page No. 13

K Series Power Amplifiers 5 Advanced Features NOTE: For detailed information about these Crown 5.2 Advanced Features amplifier features, please consult the Crown Amplifier • BCA (Balanced Current Amplifier) technology allows high Application Guide, available on the Crown website at levels of power output without all the associated heat found www.crownaudio.com. in a conventional amplifier. This highly efficient design works without using a cooling fan. 5.1 Protection Systems • Accurate, un

Summary of the content on the page No. 14

K Series Power Amplifiers 6 Troubleshooting CONDITION: No power to the CONDITION: Input signal but no sound. amplifier. POSSIBLE REASON: POSSIBLE REASON: • The amplifier has just been turned on and • The amplifier's Power switch is off. is still in the 4-second turn-on delay. • The amplifier is not plugged into the • Speakers not connected. power receptacle. • The amplifier's low-voltage power supply fuse has blown. Return amp to Crown or an authorized Crown Service Center for servicing. C

Summary of the content on the page No. 15

K Series Power Amplifiers 7 Specifications Minimum Guaranteed Power K1 K2 120 VAC, 60 Hz Units, Stereo mode, per channel, both channels driven 1 kHz with 0.1% THD Stereo, 2 ohms per ch. 750W 1,250W Stereo, 4 ohms per ch. 550W 800W Stereo, 8 ohms per ch. 350W 500W 120 VAC, 60 Hz Units, Bridge mono mode 1 kHz with 0.1% THD 4 ohms 1,500W 2,500W Performance K1 K2 Frequency Response (at 1 watt, 20 Hz - 20 kHz) ± 0.25 dB ± 0.25 dB Signal to Noise Ratio below rated power (20 Hz to 20 kHz) > 100 dB

Summary of the content on the page No. 16

K Series Power Amplifiers 8 Service Crown amplifiers are quality units that rarely require ser- 8.2.2 Factory Service 8.2.4 Packing Instructions 3. Reset center cushion down over top of product's vicing. Before returning your unit for service, please con- chassis. The foam-in-place packing was molded to Important: These instructions must be followed. If they Crown accepts no responsibility for non-serviceable tact Crown Technical Support to verify the need for accommodate different chassis d

Summary of the content on the page No. 17

K Series Power Amplifiers 9 Warranty UNITED STATES & CANADA SUMMARY OF WARRANTY est, insurance, closing costs, and other finance FROM ANY DEFECT IN THE NEW CROWN charges less a reasonable depreciation on the PRODUCT. THIS INCLUDES ANY DAMAGE TO Crown International, 1718 West Mishawaka Road, product from the date of original purchase. War- ANOTHER PRODUCT OR PRODUCTS RESULT- Elkhart, Indiana 46517-4095 U.S.A. warrants to ranty work can only be performed at our autho- ING FROM SUCH A DEFECT. S

Summary of the content on the page No. 18

K Series Power Amplifiers 9 Warranty WORLDWIDE EXCEPT USA & CANADA SUMMARY OF WARRANTY unless you agree, or unless we are unable to pro- DISCLAIMER OF CONSEQUENTIAL AND Crown International, 1718 West Mishawaka Road, vide replacement, and repair is not practical or INCIDENTAL DAMAGES Elkhart, Indiana 46517-4095 U.S.A. warrants to cannot be timely made. If a refund is elected, then YOU ARE NOT ENTITLED TO RECOVER FROM US you, the ORIGINAL PURCHASER and ANY SUB- you must make the defective or

Summary of the content on the page No. 19

K Series 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: ____________________________________________ Serial Number: _____________________ Purchase Date: _____________ PRODUCT RETURN INFORMATION Individual or Business Name: ____________________________________

Summary of the content on the page No. 20


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