Krell Industries KAV-300IL Manual de usuario

Instructions for Use

Owner’s Reference

THE LEADER IN AUDIO ENGINEERING

KAV–300iL

Remote Control

Integrated Amplifier

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 registered to their respective companies.

Krell Industries, Inc.

45 Connair Road

Orange, CT 06477-3650 USA

TEL 203-799-9954

FAX 203-891-2028

E-MAIL [email protected]

WEBSITE http://www.krellonline.com

This product complies with the EMC directive (89/336/EEC) and the low-voltage

directive (73/23/EEC).

Do not place the integrated amplifier where it could be exposed to dripping or

splashing.

The ventilation grids on the top and bottom of the KAV–300iL must be unobstruct-

ed at all times during operation. Do not place flammable material on top of or

beneath the component.

When making connections to this or any other component, make sure all compo-

nents are off. Turn off all systems’ power before connecting the KAV–300iL to any

other component. Make sure all cable terminations are of the highest quality, free

from frayed ends, short circuits, or cold solder joints.

THERE ARE NO USER-SERVICEABLE PARTS INSIDE ANY KRELL PRODUCT.

Please contact your authorized dealer, distributor, or Krell if you have any ques-

tions not addressed in this reference manual.

KAV–300iL

Remote Control Integrated Amplifier

Instructions for Use

v 01.2

CONTACT

INFORMATION

WARNINGS

Krell KAV–300iL iii

Contents

Page

INTRODUCTION 1

DEFINITION OF TERMS 2

UNPACKING 4

PLACEMENT 5

AC Power Guidelines 5

Power Cord 5

FRONT PANEL DESCRIPTION 7

BACK PANEL DESCRIPTION 10

REMOTE CONTROL DESCRIPTION 13

Battery Installation and Removal 13

Remote Control Functions 13

CONNECTING THE KAV–300iL TO YOUR SYSTEM 15

Connection Steps 15

OPERATING YOUR KAV–300iL 16

Amplifier Operation 16

Tape Input and Output 17

OPTIONAL CONFIGURATIONS 18

Configuring the KAV–300iL for Theater Throughput 18

HOW TO TROUBLESHOOT SYSTEM NOISE 20

QUESTIONS AND ANSWERS 21

WARRANTY 22

RETURN AUTHORIZATION PROCEDURE 23

SPECIFICATIONS Back Cover

iv Krell KAV–300iL

Illustrations

FIGURE 1 The KAV–300iL Front Panel 6

FIGURE 2 The KAV–300iL Back Panel 9

FIGURE 3 The KAV–300iL Remote Control 12

Page

Krell KAV–300iL 1

Introduction

Thank you for your purchase of the Krell KAV–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. All circuits up

to the driver stage are pure Class A.

Krell’s new surface mount technology (SMT) means that the

KAV–300iL is an integrated amplifier with big power—200 Watts

per channel—that does not require big space. SMT allows individ-

ual circuit elements to be placed very close together. This shortens

signal paths and allows circuit elements to operate at the same

temperature, resulting in more accurate signal transfer and

enhanced reliablilty.

The KAV–300iL is easy to operate and integrate into your system.

The remote control accesses all amplifier functions, and remote

control connection options allow the KAV–300iL to be easily con-

nected with other components. The Theater Throughput feature

provides easy integration of the amplifier into a home theater

system.

This owner’s reference manual contains important information on

the placement, installation, and operation of the KAV–300iL.

Please read this information carefully. A thorough understanding of

these details will help ensure satisfactory operation and long life

for your KAV–300iL and related system components.

Definition of Terms

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.

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 instal-

lations, balanced connections have 6 dB more gain than single-

ended connections and allow the use of long interconnect cables.

Balanced connections are completely immune to induced noise

from the system or the environment.

Single-ended

A two-wire input or output circuit. Use care when using single-

ended connections as the ground connection is made last and

broken first. Turn the system off prior to making or breaking single-

ended connections. Single-ended connections are not recom-

mended for connections requiring long cable runs.

Off

The component is off when the AC power cord is unplugged from

the wall receptacle.

Stand-by Mode

A low power consumption status that keeps the audio circuits at

idle. When you plug the AC power cord into the wall receptacle,

the red stand-by LED illuminates. The component is now ready to

be switched to the operational mode. Krell recommends leaving

the component in the stand-by mode when it is not playing music.

Operational Mode

When the component is in the stand-by mode, and you press the

power button on the front panel or the power key on the remote

control, the blue power LED illuminates. The component is in the

operational mode and is ready to play music.

CONFIGURATIONS

INPUT AND OUTPUT

CONNECTIONS

2Krell KAV–300iL

Definition of Terms, 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 KAV–300iL 3

4Krell KAV–300iL

Unpacking

After opening the box and removing the top layer of foam, the

KAV–300iL and the KAV–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 KAV–300iL remote control

1 CR2025 lithium battery

Grasp the underside of the amplifier and lift it straight out of the

packing box.

Place the amplifier in a safe location and remove the protective

plastic wrapping.

If any of these items are not included please contact your authorized

Krell dealer.

Save all packing materials. If you must ship your KAV–300iL in the future,

repack the unit in its original packaging to prevent shipping damage.

Notes

Krell KAV–300iL 5

Placement

Before you install the KAV–300iL into your system, review the fol-

lowing guidelines to choose the location for the KAV–300iL. This

will facilitate a clean, trouble-free installation. The KAV–300iL does

not require any type of special rack or cabinet for installation. For

the dimensions of the KAV–300iL, see Specifications, on the

back cover.

Place the KAV–300iL on a firm, level surface, away from excessive

heat, humidity, or moisture. The KAV–300iL 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. Installations inside cabinetry may need extra

ventilation.

The KAV–300iL is not hum-sensitive. Other components may be

placed on or around the KAV–300iL (make sure ventilation grids

remain unobstructed).

Place the amplifier as close to the loudspeakers as possible and

keep loudspeaker cable lengths to a minimum. Loudspeaker cable

adds impedance to the load the amplifier must drive, regardless of

the cable’s gauge. All Krell amplifiers drive the lowest impedances

with ease, but long loudspeaker cables reduce the maximum

power that can be delivered to the loudspeakers.

The KAV–300iL has superb regulation and does not require a ded-

icated AC circuit. Avoid connections through extension cords or

multiple AC adapters. High quality 15 amp grounded AC strips are

acceptable. High quality AC line conditioners or filters may be

used if they are grounded and meet or exceed the unit’s maximum

power consumption of 1800 Watts.

The KAV–300iL should be operated only with the power cord

supplied. Please contact your authorized Krell dealer, distributor,

or Krell before using any devices designed to alter or stabilize the

AC power for the KAV–300iL.

AC Power

Guidelines

Power Cord

Figure 1 The KAV-300iL Front Panel

2 71 4 116 9 1083 5

Mode Indicators

8 Mute Button

9 Mute LED

Volume Adjustment

Functions

10 Level Up

and Down Buttons

11 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 Tape Button

7 Tape LED

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