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Krell Industries KAV-300IL manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    Instructions for Use Owner ’ s Reference THE LEADER IN AUDIO ENGINEERING KA V– 300iL Remote Control Integrated Amplifier[...]

  • Page 2

    This product is manufactured in the United States of America. Krell ® is a registered trademark of 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 tradenames are r[...]

  • Page 3

    Krell KA V–300iL iii Contents Page INTRODUCTION 1 DEFINITION OF TERMS 2 UNP ACKING 4 PLACEMENT 5 AC Power Guidelines 5 Power Cord 5 FRONT P ANEL DESCRIPTION 7 BACK P ANEL DESCRIPTION 10 REMOTE CONTROL DESCRIPTION 13 Battery Installation and Removal 13 Remote Control Functions 13 CONNECTING THE KA V–300iL TO YOUR SYSTEM 15 Connection Steps 15 OP[...]

  • Page 4

    iv Krell KA V–300iL Illustrations FIGURE 1 The KA V–300iL Front Panel 6 FIGURE 2 The KA V–300iL Back Panel 9 FIGURE 3 The KA V–300iL Remote Control 12 Page[...]

  • Page 5

    Krell KA V–300iL 1 Introduction Thank you for your purchase of the Krell KA V–300iL Remote Control Integrated Amplifier . This fully integrated amplifier and pre- amplifier has a fully balanced signal path from input to output and employs a wide bandwidth design with low negative feedback for sonic accuracy throughout the frequency spectrum. Al[...]

  • Page 6

    Definition of T erms OPERA TION 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 ba[...]

  • Page 7

    Definition of T erms, continued 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. TECHNOLOGY Krell KA V–300iL 3[...]

  • Page 8

    4 Krell KA V–300iL Unpacking After opening the box and removing the top layer of foam, the KA V–300iL and the KA V–300iL accessory kit containing the follow- ing items will be visible: 1 AC power cord 1 12 VDC (12 V trigger) cable 2 spare loudspeaker fuses (AGC 8) 1 KA V–300iL remote control 1 CR2025 lithium battery Grasp the underside of t[...]

  • Page 9

    Krell KA V–300iL 5 Placement Before you install the KA V–300iL into your system, review the fol- lowing guidelines to choose the location for the KA V–300iL. This will facilitate a clean, trouble-free installation. The KA V–300iL does not require any type of special rack or cabinet for installation. For the dimensions of the KA V–300iL, s[...]

  • Page 10

    Figure 1 The KAV-300iL Front Panel 2 7 1 4 11 6 9 10 8 3 5 Mode Indicators 8 Mute Button 9 Mute LED V olume Adjustment Functions 10 Level Up and Down Buttons 1 1 Front Panel Display Power 1 Power Button 2 Power LED 3 Stand-by LED 4 Infrared Sensor Analog Devices 5 S-1, S-2, S-3, and B-1 Buttons and LED 6 T ape Button 7 T ape LED[...]

  • Page 11

    Krell KA V – 300iL 7 The front panel of the KA V – 300iL 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. 1 Power Button Use this button to switch the KA V – 300iL between the stand-by and the operational modes. 2 Power LED[...]

  • Page 12

    8 Krell KA V – 300iL Front Panel Description continued 8 Mute Button Use this button to interrupt the signal of the input you have select- ed. T o unmute, press the mute button again. 9 Mute LED The red mute LED illuminates when you press the mute button or mute key (28) on the remote control. 10 Level Up and Down Buttons The volume level buttons[...]

  • Page 13

    Figure 2 The KAV-300iL Back Panel 50/60 Hz 19 30 18 23 12 13 14 15 16 17 12 23 22 21 MADE IN USA FUSE AGC 8 LEFT OUTPUT IN IN RC–5 12VDC OUT OUTPUTS TAPE PREAMP LEFT TAPE S – 3 S – 2 S – 1 INPUTS B – 1 LEFT B – 1 RIGHT RIGHT OUTPUT RIGHT FUSE AGC 8 NO USER SERVICEABLE PARTS INSIDE KA V – 300iL Amplifier Channel Outputs 12 Left and Rig[...]

  • Page 14

    Back Panel Description See Figure 2 on page 9 10 Krell KA V – 300iL The KA V – 300iL back panel provides connections for all inputs and outputs, power on/off, and additional remote connections. 12 Left and Right Loudspeaker Outputs The KA V – 300iL is equipped with standard binding posts for each amplifier channel. These connectors accept bar[...]

  • Page 15

    Back Panel Description, continued Krell KA V – 300iL 11 20 12 VDC In The KA V – 300iL 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 KA V – 300iL on or off, or to and from stand-by , from other compon[...]

  • Page 16

    Figure 3 The KAV-300iL Remote Control 12 Krell KA V – 300iL 24 25 27 26 28 29 30 Power 24 Power Key 25 Pre Key Analog Functions 26 Analog Input Keys 27 T ape Key Output Control Functions 29 Mute Key 29 V ol (V olume) Keys 30 Bal (Balance) Keys Note Remote control keys listed above function with the KA V -300iL. Other keys on this remote control m[...]

  • Page 17

    Remote Control Description See Figure 3 on page 12 Krell KA V – 300iL 13 The KA V -300iL remote control uses one CR2025 lithium battery , which is included with the shipment. T o open the battery compartment on the back of the remote control: 1. Place the remote face down on the table. 2. Use your thumbnail or a small jeweler ’ s or eyeglass sc[...]

  • Page 18

    Remote Control Functions continued 14 Krell KA V – 300iL 26 Analog Input Keys Use these keys to select a balanced source (B-1) or single-ended sources (S-1, S-2, or S-3). The selected input LED on the front panel illuminates. 27 T ape Key Use this key to monitor the output signal of a three-head analog tape recorder , compared to the output signa[...]

  • Page 19

    Krell KA V – 300iL 15 Krell recommends using balanced interconnect cables. Balanced interconnect cables not only can minimize sonic loss but are also immune to induced noise, especially with installations using long cables. Balanced connections have 6 dB more gain than single- ended connections. When level matching is critical, keep this gain val[...]

  • Page 20

    16 Krell KA V – 300iL This section provides information about operating the KA V – 300iL. The KA V – 300iL 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. See Remote Control, on page 13, for more in[...]

  • Page 21

    Krell KA V – 300iL 17 3. T o turn the amplifier off, press the power button (1) or power key (24). The red stand-by LED (3) illuminates. It is now safe to turn off the rest of the system. The KA V – 300iL 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 pro[...]

  • Page 22

    18 Krell KA V – 300iL T o simplify the integration of an audio/video surround sound processor into your system, set any input on the KA V – 300iL (S-1, S-2, S-3, or B-1) to operate as a unity gain stage. Krell calls this configuration Theater Throughput. When you configure a KA V – 300iL input for Theater Throughput, the KA V – 300iL volume[...]

  • Page 23

    Krell KA V – 300iL 19 The KA V – 300iL is equipped with a pair of single-ended preamplifi- er outputs (17). These outputs enable the KA V – 300iL to be used as a preamplifier when it is connected to a separate amplifier . The amplifier channel outputs are always active, even when the KA V–300iL is being used only as a preamplifier . Optiona[...]

  • Page 24

    20 Krell KA V – 300iL 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. If a low frequency hum emanates from th[...]

  • Page 25

    Krell KA V – 300iL 21 Q. Should I leave my KA V – 300iL on at all times? 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 . Q. When I turn on the amplifier there is a loud hum through the loudspeakers. Wh[...]

  • Page 26

    22 Krell KA V – 300iL 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 . The warranty does not apply to damage caused by acts of God or nature. The warr[...]

  • Page 27

    Krell KA V – 300iL 23 Return Authorization Procedure 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 . T o expedite service, you may wish to complete and e-mail the Service Request Form in the Service section [...]

  • Page 28

    FREQUENCY RESPONSE 20 Hz-20 kHz +0 dB, -0.07 dB SIGNAL TO NOISE RA TIO “A” WEIGHTED 99 dB TOT AL HARMONIC DISTORTION (THD) 1 kHz <0.04% 20 kHz <0.25% GAIN 35.8 dB INPUT SENSITIVITY 0.644 V rms INPUT IMPEDANCE 47 kOhms OUTPUT IMPEDANCE 0.17 Ohms POWER CONSUMPTION Idle 20 W Max. 1,800 W TRANSFORMER 750 V A INPUTS ALL WITH THEA TER THROUGHPU[...]