Krell Industries KAV-300I Quick start guide

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The Leader in Audio Engineering
KAV-3001
REMOTE CONTROL
INTEGRATED AMPLIFIER
OWNER’S REFERENCE

KAV-300i Krell Industries, Inc.
Remote Control 45 Connair Road
Integrated Amplifier Orange, CT 06477-3650 USA
v 00.0 TEL [phone]
FAX [phone]
E-MAIL [email protected]
WEBSITE http://www.krellonline.com
cE
This product complies with the EMC directive (89/336/EEC) and the low-voltage
directive (73/23/EEC). ,
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. Theater Throughput™ is a
trademark of Krell Industries, Inc. All other trademarks and tradenames are registered to their respective companies.
© 2000 by Krell Industries, Inc. All rights reserved P/N 303854

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BACK
COVER
TABLE OF CONTENTS
INTRODUCTION
UNPACKING AND ASSEMBLY
BASIC INSTALLATION
INPUT AND OUTPUT CONNECTIONS
BASIC OPERATION
OPTIONAL CONFIGURATIONS
REMOTE CONTROL
REAR PANEL DESCRIPTION
QUESTIONS AND ANSWERS
WARRANTY
RETURN AUTHORIZATION PROCEDURE
SPECIFICATIONS

Thank you for your purchase of the KRELL KAV-300i integrated amplifier.
Components bearing the name KRELL have always represented the premier
performers in their product categories. The KAV-300i integrated amplifier
continues this unbroken streak of trailblazers. We are also proud to announce
that the KAV-300i has received the European Imaging and Sound Association
(EISA) 1996-1997 European High-End Audio Product of the Year award.
The KAV-300i uses proven KRELL circuits built with the same resistors, output
devices, etc., as in all KRELL products. Envisioned from the beginning as a
united preamplifier/amplifier, the KAV-300i pairs a remote controlled
preamplifier to a robust 150 watt per channel power amplifier. From input to
output, the KAV-300i uses discrete, fully complementary circuitry. All circuits
up to the driver stage operate in pure Class A. The KAV-300i employs a wide
bandwidth design with very low negative feedback for sonic accuracy
throughout the frequency spectrum.
To obtain the best performance from your KAV-300i, careful attention should
be paid to its placement, installation, and operation. A thorough
understanding of these details will help insure satisfactory operation and a long
life for the KAV-300i and related system components.
This Owner's Reference is divided into several sections, each designed to
perform a different function. As you read through the Owner's Reference you
will become better acquainted with the features and functions that make the
KAV-300i an outstanding performer and a superb value. A Question and
Answer section is included where answers to common questions are provided.
Should you have any questions or suggestions please feel free to contact your
authorized dealer or the KRELL staff for assistance.
In the unlikely event that your KAV-300i should require service, you will be
pleased to know that it is backed by a comprehensive Customer Satisfaction
policy and one of the most advanced service facilities in the industry. For
detailed information on the terms and conditions of service, please consult your
warranty registration card, your KRELL Dealer or Distributor.

UNPACKING AND ASSEMBLY
1. After opening the box, the KAV-300i and the following items will now be
visible:
KAV-300i remote control
T-10 Torx wrench
AC power cord
Owner's Reference
Warranty card = e e e
NOTE: If any of these items are not included please contact your authorized
dealer immediately for assistance.
NOTE: Save all packing materials. If you must ship your KAV-300i in the future,
repack the unit in its original packing to prevent damage in transit.
m BAGIC INSTALLATION
1. Place the unit on a firm level surface free from dirt or moisture. The
KAV-300i is not particularly hum sensitive, therefore other components can
be placed on or around the KAV-300i.
NOTE: While the KAV-300i has a superb power supply and does not require a
dedicated circuit, we strongly advise against any connections through extension
cords or multiple AC adapters. High quality 15 amp line conditioners or
grounded AC strips are acceptable.

INPUT AND OUTPUT CONNECTIONS
CAUTIONS: When making connections to this or any other component, make sure
all components are OFF. Make sure all cable terminations are of the highest
quality, free from frayed ends, shorts, or cold solder joints. The wiring to and
from the KAV-300i, and all components in general, should be arranged in a neat,
organized manner. Specifically, AC wires should be separated from audio cables.
This practice prevents hum or other noise from being introduced into the system.
1. Connect the speaker cables to the integrated amplifiers output terminals.
The KAV-300i utilizes standard binding posts for each amplifier channel.
These connectors accept bare wire, banana plugs, pins, or spade lugs. The
red terminal is used for the positive connection and the black terminal is
used for the negative connection.
2. Connect the left and right outputs of your source components to the inputs
on the KAV-300i.
The KAV-300i is equipped with three single-ended inputs (S1, S2, and
S3/proc), one tape monitor loop, and one balanced input (B1). The S1 and
S2 inputs are standard single-ended inputs while S3/proc has a user-
configurable option. The S3/proc is set as a standard input from the
factory. The S3/proc input can be set for use as a surround processor
throughput. This option will be discussed on page 6 in Optional
Configurations.
NOTE: When connecting inputs to the KAV-300i, remember that the
balanced connection will have 6dB more gain than the single-ended
connections. When level matching is critical in your installation, keep this
specification in mind.
3. Plug the AC cord into the receptacle on the back of the KAV-300i. Plug the
remaining end into the AC wall receptacle. The red Stand-by LED will
illuminate.

The KAV-300i provides basic input selection and volume control operation
from the front panel. The remote control includes additional preamplifier
functions as well as KRELL CD transport and amplifier controls (see Remote
Control page 8 for more information).
BASIC OPERATION
1. Engage the power switch on the KAV-300i either manually or via the remote
control.
The KAV-300i power supply incorporates a slow start protection circuit that
prevents excessive current from reaching the audio circuitry upon initial
turn on. After pressing the power switch, the red Stand-by LED will turn off
and the blue Power LED will illuminate. There is a short delay, followed by
an audible click. This click is the protection circuitry disengaging. The
amplifier is now ready for operation.
2. Choose a listening source and select that input either manually or via the
remote control.
3. Start play of the source.
4. Set volume to a comfortable listening level.
5. When changing sources, lower the volume to the off position or mute the
output (see MUTE on page 6). This insures that the next source played will
not damage your system with a high output transient.
BALANCE (REMOTE CONTROL ONLY)
Balance < shifts balance to the left in one dB increments.
Balance » shifts balance to the right in one dB increments.
When either Balance control is depressed, the Balance LED will illuminate and
the volume control LEDs convert to a Balance control indicator. The center LED
will always remain dimly illuminated indicating the center balance position. As
balance is adjusted either left or right, another more brightly lit LED illuminates
to indicate the now modified balance setting. After 5 seconds of inactivity or a
volume adjustment, the LEDs revert back to volume control indicators. If the
Balance has been set to an off-center position, the Balance LED will remain lit
after the adjustment period. If returned to a centered Balanced position, the
Balanced LED will extinguish after the adjustment period.

MUTE
Front panel: To mute, press the active source's input button.
Remote control: Press the mute button.
UNMUTE
Front panel: Press the active source's input button again. If the source is
changed while the KAV-300i is muted, press the new source's input button a
second time to unmute the KAV-300i.
Remote control: Press the mute button.
S3/proc: For simplified integration of an A/V surround sound processor, the
S3/proc input can be set to operate as a unity gain stage. In this Theater
Throughput mode, when the S3/proc input is selected, the KAV-300is volume
and balance controls are disabled. Volume control is transferred from the
KAV-300i to the A/V surround sound processor connected to the S3/proc
input. The left and right channel volume settings are now independent of the
KAV-300is volume control and the overall system level is determined by the
A/V surround sound processor exclusively.
NOTE: The factory default position sets the S3/Proc input as a standard input.
To enable this option, it is necessary to remove the top cover of the KAV-300i.
1. Unplug the KAV-300i from the AC outlet.
2. Remove the KAV-300i top cover screws with the supplied T-10 Torx wrench.
Lift the cover from the KAV-300i.

w= OPTIONAL CONFIGURATIONS
3. Find the section labeled Input Configure located behind the faceplate directly
in back of the KRELL Audio Video logo. The factory default setting is shown
in figure 1. Remove the jumper from the S-3 side and place it on the side
labeled proc as in figure 2.
4. Place the top cover back on the KAV-300i and insert the cover screws.
5. Plug the KAV-300i back into the AC outlet.
Figure
1.
Figure
2.
Input
Configure
Input
Configure
PREAMP
OUTPUT
The KAV-300i is equipped with a pair of single-ended preamplifier outputs.
This allows the KAV-300i to act as a preamplifier when used with a separate
amplifier.
NOTE: The speaker outputs on the KAV-300i remain active at all times.

REMOTE CONTROL
NOTE: When a function button on the remote control is pressed, the blue pilot LED
will flash on the KAV-300i. When the button is released the flashing stops.
PREAMPLIFIER FUNCTIONS
CD FUNCTIONS
» (PLAY)
I I (PAUSE)
|4 (TRACK PREV)
P| (TRACK NEXT)
LEVEL A Raises volume
LEVEL V Lowers volume
B-1 Selects B-1 input
S-1 Selects S-1 input
S-2 Selects S-2 input
6-3 Selects S-3/Proc input
TAPE Engages tape monitor
MUTE No signal output when LED is illuminated.
BALANCE < Shifts balance to the left in 1dB increments.
"L" position mutes the right channel.
BALANCE P» Shifts balance to the right in 1dB increments.
"R" position mutes the left channel.
Starts CD playback on KRELL CD transports.
Temporarily suspends playback of current track.
Second press of the Pause button resumes play.
Selects and begins playing the track previous to the
current track.
Selects and begins playing the track after the current
track.