Related Manuals for Krell Industries KAV-280p
Summary of Contents for Krell Industries KAV-280p
- Page 1 KAV–280p Remote Control THE LEADER IN AUDIO ENGINEERING Preamplifier 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™ and Theater Throughput™ are trademarks of Krell Industries, Inc. All other trade- marks and trade names are registered to their respective companies.
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Page 3: Table Of Contents
Contents Krell KAV–280p INTRODUCTION DEFINITION OF TERMS UNPACKING PLACEMENT AC Power Guidelines FRONT PANEL DESCRIPTION BACK PANEL DESCRIPTION REMOTE CONTROL DESCRIPTION Battery Installation and Removal Remote Control Functions CONNECTING THE KAV–280p TO YOUR SYSTEM Connection Steps OPERATING YOUR KAV–280p Preamplifier Operation Tape Input and Output CONFIGURING THE KAV–280p FOR THEATER THROUGHPUT... - Page 4 Illustrations FIGURE 1 The KAV–280p Front Panel FIGURE 2 The KAV–280p Back Panel FIGURE 3 The KAV–280p Remote Control Page Krell KAV–280p...
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Page 5: Introduction
Introduction Krell KAV–280p Thank you for your purchase of the Krell KAV–280p Remote Control Preamplifier. The KAV-280p uses current mode and sur- face mount technologies derived directly from the state-of-the-art Krell KCT Preamplifier. The Class A direct-coupled design of the KAV–280p means that the signal path is fully balanced from input to output. -
Page 6: Definition Of Terms
Definition of Terms CONFIGURATIONS INPUT AND OUTPUT CONNECTIONS OPERATION Following are the definitions of key terms used in your owner’s ref- erence manual. Theater Throughput Theater Throughput is a Krell configuration option that allows the signal from a surround preamp/processor to pass through a Krell preamplifier or integrated amplifier with no gain, for integrated vol- ume and balance management of Krell home theater systems. -
Page 7: Unpacking
Definition of Terms, continued TECHNOLOGY Unpacking Notes Krell KAV–280p Krell Current Mode A proprietary Krell circuit topology in which the audio gain stages of a component operate in the current rather than voltage domain. This unique technology provides the component with exceptional speed and a wide bandwidth. -
Page 8: Placement
Placement AC Power Guidelines Before you install the KAV–280p into your system, review the fol- lowing guidelines to choose the location for the KAV–280p. This will facilitate a clean, trouble-free installation. The KAV–280p does not require any type of special rack or cabinet for installation. For the dimensions of the KAV–280p, see Specifications, on the back cover. -
Page 10: Front Panel Description
Front Panel Description See Figure 1 on page 5 Front Panel Functions POWER ANALOG SOURCE COMPONENTS The front panel of the KAV–280p accesses power on and off, analog input selections, volume control, and mute. The front panel display shows the volume and balance levels, and Theater Throughput status. - Page 11 Front Panel Description continued MODE INDICATORS VOLUME ADJUSTMENT FUNCTIONS Krell KAV–280p 8 Mute Button Use this button to interrupt the signal from the active source you have selected. When the red mute LED (9) on the KAV–280p is illuminated, there is no signal output. To unmute the signal from the active source, press the mute but- ton again.
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Page 13: Back Panel Description
Back Panel Description See Figure 2 on page 8 Back Panel Functions ANALOG INPUTS ANALOG OUTPUTS BACK PANEL REMOTE CONNECTIONS Krell KAV–280p The KAV–280p back panel provides connections for all inputs and outputs, power on/off, and additional remote connections. 12 Left and Right Balanced Analog Inputs The KAV–280p is equipped with one pair of balanced (B-1) inputs via XLR connectors. - Page 14 Back Panel Description, continued BACK PANEL REMOTE CONNECTIONS, continued Notes POWER Note 17 12 VDC In The KAV–280p is equipped with an input that receives 12 VDC (12 V trigger) power on/off signals from other Krell components and other devices that incorporate a 12 V trigger. This allows you to turn the KAV–280p on or off, or to and from stand-by, from other components.
- Page 15 Figure 3 The KAV–280p Remote Control Power 22 Power Key 23 Pre Key Analog Functions 24 Analog Input Keys 25 Tape Key Output Control Functions 26 Mute Key 27 Vol (Volume) Keys 28 Bal (Balance) Keys Note Krell KAV–280p The remote control keys listed above function with the KAV–280p. Other keys on this remote control may activate other Krell components, for exam- ple, other compact disc players.
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Page 16: Remote Control Description
Remote Control Description See Figure 3 on page 11 Battery Installation Removal Note Notes Remote Control Functions Note POWER The KAV–280p remote control uses one CR2025 lithium battery, which is included with the shipment. To open the battery compartment on the back of the remote control: 1. - Page 17 Remote Control Functions continued POWER, continued ANALOG FUNCTIONS OUTPUT CONTROL FUNCTIONS Krell KAV–280p 23 Pre Key Use this key to activate the KAV–280p remote and access other pre- amplifier commands. You can then access preamplifier commands until you press a different activation key, for example the CD key to access commands for a Krell compact disc player.
- Page 18 Remote Control Functions continued Analog Functions, continued Note To access and display balance, push either the “L” or the “R” bal- ance key on the remote. The front panel display indicates the bal- ance setting. After 3 seconds of inactivity or after a volume adjust- ment, the front panel display reverts to the volume setting.
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Page 19: Connecting The Kav-280P To Your System
Both balanced and single-ended outputs are active at all times, allowing simultaneous connections to separate ampli- fiers or separate systems. Do not connect both outputs to a single stereo amplifier at one time. 4. Connect the outputs of the KAV–280p to the inputs of your power amplifier. - Page 20 Connecting the KAV–280p to Your System Pin assignments for the XLR connectors Additional Connections Note continued Pin 1 Shield (ground) Pin 2 Non-inverting (hot) (0°) Pin 3 Inverting (cold) (180°) RC-5 IN This input accepts baseband RC-5 input commands. It facilitates custom installations by allowing the KAV–280p to be controlled via hard-wired signals from various remote devices.
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Page 21: Operating Your Kav-280P
Operating Your KAV–280p Preamplifier Operation Note Note Krell KAV–280p This section provides information about operating the KAV–280p. The KAV–280p provides basic input selection and volume control operation from the front panel. The remote control includes addi- tional preamplifier functions as well as CD transport and amplifier controls. - Page 22 Operating Your KAV–280p, continued Tape Input and Output Note The KAV–280cd has a discrete tape input and output. The tape output is used to send an input signal from S-1, S-2, S-3, or B-1 to a recording device or processor. You can use the tape feature in three ways: 1.
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Page 23: Configuring The Kav-280P For Theater Throughput
Configuring the KAV–280p for Theater Throughput How to Activate an Input for Theater Throughput IMPORTANT How to Disengage an Input for Theater Throughput Krell KAV–280p To simplify the integration of an audio/video surround sound processor into your system, set any input on the KAV–280p (S-1, S-2, S-3, or B-1) to operate as a unity gain stage. -
Page 24: How To Troubleshoot System Noise
How to Troubleshoot System Noise AC grounding becomes critical when connecting high performance audio components. When you mix and match audio components, each with its own ground potential, a low frequency hum may occur in one or both loudspeakers. This sometimes occurs when introducing a new component into a system. -
Page 25: Questions And Answers
Questions and Answers Krell KAV–280p Q. Should I leave my KAV–280p on all the time? A. Krell recommends leaving the amplifier in the stand-by mode, ready to play music. If you are not going to play music for a long time, you may disconnect the amplifier from AC power supply. -
Page 26: Warranty
Warranty To register your product for warranty benefits, please complete and return the Warranty Registration Card enclosed in the ship- ping box within 15 days of purchase. Thank you. 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 27: Return Authorization Procedure
Return Authorization Procedure HOW TO EXPEDITE SERVICE HOW TO RETURN A PRODUCT IMPORTANT HOW TO PURCHASE ADDITIONAL PACKING SERIAL NUMBER Krell KAV–280p If you believe there is a problem with your component, please con- tact your dealer, distributor, or the Krell factory to discuss the problem before you return the component for repair. -
Page 28: Remote Control
Krell Industries, Inc. 45 Connair Road Orange, CT 06477-3650 USA TEL 203-799-9954, FAX 203-891-2028 E-MAIL krell@krellonline.com WEB SITE www.krellonline.com Specifications All operational features, functions, specifications, and policies are subject to change without notification. FREQUENCY RESPONSE 20 Hz-20 kHz +0 dB, -0.04 dB 0.2 Hz-300 kHz...