Related Manuals for Krell Industries Showcase 5
Summary of Contents for Krell Industries Showcase 5
- Page 1 Showcase 7 Showcase 6 THE LEADER IN AUDIO ENGINEERING Showcase 5 Multichannel Amplifier Instructions for Use Owner’s Reference...
- Page 2 This product is manufactured in the United States of America. Krell Industries, Inc., and is restricted for use by Krell Industries, Inc., its subsidiaries, and authorized agents. Krell Current Mode™ is a trademark of Krell Industries, Inc. All other trademarks and tradenames are registered to their respective companies.
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Page 3: Table Of Contents
Contents Krell Showcase Amplifier INTRODUCTION DEFINITION OF TERMS UNPACKING PLACEMENT AC Power Guidelines FRONT PANEL DESCRIPTION BACK PANEL DESCRIPTION CONNECTING THE SHOWCASE AMPLIFIER TO YOUR SYSTEM Input and Output Connections AMPLIFIER OPERATION On/Off and Operation TROUBLESHOOTING SYSTEM NOISE QUESTIONS AND ANSWERS WARRANTY RETURN AUTHORIZATION PROCEDURE SPECIFICATIONS... - Page 4 Illustrations FIGURE 1 The Showcase Amplifier Front Panel FIGURE 2 The Showcase Amplifier Back Panel Page Krell Showcase Amplifier...
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Page 5: Introduction
The amplifiers differ only by how many channels are housed within the amplifier. A Showcase 5 includes five amplifier channels, a Showcase 6 includes six amplifier channels, and a Showcase 7 includes seven amplifier channels. -
Page 6: Definition Of Terms
Definition of Terms INPUT AND OUTPUT CONNECTIONS OPERATION TECHNOLOGY Following are the definitions of key terms used in your owner’s ref- erence manual. Balanced A symmetrical input or output circuit that has equal impedance from both input terminals to a common ground reference point. The industry standard for professional and sound recording installations, balanced connections have 6 dB more gain than single-ended con- nections and allow the use of long interconnect cables. -
Page 7: Unpacking
12 VDC output (12 V trigger) cable spare AC mains fuse 10 A slow-blow fuse for 100 –120 VAC 5 A slow-blow fuse for 220 –240 VAC packet containing the owner’s reference manual and the warranty registration card. Two people are needed to remove the amplifier from the shipping box. -
Page 8: Placement
This will facilitate a clean, trouble-free installation. The Showcase Amplifier requires at least two inches (5 cm) of clearance on each side and at least two inches (5 cm) of clearance above and below the component to provide adequate ventilation. -
Page 9: Showcase
Figure 1 The Showcase Amplifier Front Panel STAND-BY POWER S H O W C A S E AMPLIFIER 1 Power Button 2 Stand-by LED 3 Power LED... -
Page 10: Front Panel Description
Front Panel Description See Figure 1 on page 5 The Showcase Amplifier front panel provides power on and indi- cates operating status. 1 Power Button Use this button to switch the Showcase Amplifier power between the stand-by and the operational modes and also to switch the 12 VDC output (12 V trigger) on and off. -
Page 11: Showcase
OUTPUT 6 Balanced Inputs Remote Connections 4 Inputs 1-7 7 12 VDC Remote Power Out Single-Ended Inputs 8 12 VDC Remote Power In 5 Inputs 1-7 Power Amplifier Channel 9 IEC Connector and Outputs Fuseholder 6 Outputs 1-7 INPUT 6... -
Page 12: Back Panel Description
4 Inputs 1-7 The Showcase Amplifier has seven channel inputs for output devices with balanced XLR connectors. 5 Inputs 1-7 The Showcase Amplifier has seven channel inputs for output devices with single-ended RCA connectors. Use only one input to each amplifier channel at a time. You may use the balanced inputs for some of the amplifier channels and the single-ended inputs for the remaining channels. - Page 13 The AC mains fuse protects the Showcase Amplifier in the event of an internal fault. The AC mains fuse must be replaced with the spare fuse provided. Use the 10 A slow-blow fuse for 100 –120 VAC or the 5 A slow-blow fuse for 220 –240 VAC.
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Page 14: Connecting The Showcase Amplifier To Your System
The balanced inputs use three-pin XLR connectors; the single-ended inputs use RCA connectors. The Showcase 5 uses only inputs 1 through 5 and the Showcase 6 uses inputs 1 through 6. Use only one input to each amplifier channel at a time. You may use the balanced inputs for some of the amplifier channels and the sin- gle-ended inputs for the remaining channels. - Page 15 Use the red terminal for the positive connection and the black terminal for the negative connection. Tighten loudspeaker binding posts by hand only. 5. Plug the end of the AC power cord into the AC wall outlet. The amplifier is now ready for operation. See Amplifier Operation, on page 12.
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Page 16: Amplifier Operation
Amplifier Operation ON/OFF AND OPERATION IMPORTANT IMPORTANT When powering up your system, turn the amplifiers on last. When powering down your system, turn amplifiers off first. The proce- dures for amplifier operation follow. 1. Plug the end of the AC power cord into the AC wall outlet. 2. -
Page 17: Troubleshooting System Noise
5. Turn the amplifier off, disconnect the interconnect cable, and re- connect one of the other interconnect cables. 6. Repeat steps 3 through 5 until you have checked each inter- connect cable. 7. If all the interconnect cables appear to be sound, and you still have hum, you may be experiencing a ground loop. -
Page 18: Questions And Answers
Why not? A. Make sure you are not connected to channels 6 or 7 on a Showcase 5, or to channel 7 on a Showcase 6. If you are using the single-ended input, make sure the shorting pin is inserted between pins 1 and 3, and not between pins 2 and 3. -
Page 19: Warranty
Warranty To register your product for warranty benefits, please complete and return the Warranty Registration Card enclosed in the shipping box within 15 days of purchase. Thank you. Krell Showcase Amplifier This Krell product has a limited warranty of five years for parts and labor on circuitry. Should this product fail to perform at any time during the warranty, Krell will repair it at no cost to the owner, except as set forth in this warranty. -
Page 20: Return Authorization Procedure
To expedite service, you may wish to complete and e-mail the Service Request Form in the Service section of our website at: http://www.krellonline.com To contact the Krell Service Department: 203-799-9954 Monday-Friday, 9:00 am to 5:00 pm EST 203-799-9796 E-MAIL service@krellonline.com WEBSITE http://www.krellonline.com... -
Page 21: Specifications
Specifications Showcase 7, Showcase 6, Showcase 5 FREQUENCY RESPONSE SIGNAL TO NOISE RATIO “A” WEIGHTED GAIN TOTAL HARMONIC DISTORTION (THD) INPUT IMPEDANCE INPUT SENSITIVITY OUTPUT POWER EACH CHANNEL DRIVEN OUTPUT VOLTAGE POWER CONSUMPTION INPUTS OUTPUTS REMOTE CONNECTORS DIMENSIONS INCHES CENTIMETERS... - Page 22 Krell Industries, Inc. 45 Connair Road Orange, CT 06477-3650 USA TEL 203-799-9954 FAX 203-891-2028 E-MAIL krell@krellonline.com WEBSITE http://www.krellonline.com Showcase 7 Showcase 6 Showcase 5 Multichannel Amplifier v 02.1...