Krell Industries KAV-300I Quick start guide

RIEHL
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

10
11
12
13
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.

AMPLIFIER FUNCTIONS
PWR Turns KRELL Remote Control Power amplifiers
On or Off.
MTR Turns KRELL S-Series amplifiers’ bias level meters
On or Off and cycles through KRELL Audio
Standard meter functions.
NOTE: The B2, Phase, and GAIN buttons are not functional with the KAV-300i.
BATTERY INSTALLATION AND REMOVAL
NOTE: Batteries should be replaced when functions from the remote control
become intermittent. The KAV-300i remote uses two AA size batteries.
1. Remove the back plate to expose the battery storage compartment.
2. Remove the old batteries and install new ones following the battery position
diagram on the plastic battery receptacle.
3. Re-install the back plate.
4. Check to make sure the remote control is functioning properly.
If you have questions about the remote control operation contact the KRELL
staff for assistance.

REAR PANEL DESCRIPTION
INPUTS
Four single-ended inputs via RCA connectors
S-1
S-2
S-3/proc
Tape
One balanced input via XLR connectors (B1)
XLR input pin configuration:
Pin 1 Shield (ground)
Pin 2 Non-inverting (hot)
Pin 3 Inverting
OUTPUTS
Speaker outputs via five way binding posts
One tape output via single-ended RCA outputs
One preamplifier output via single-ended RCA outputs
10

Q.
A.
©
QUESTIONS AND ANSWERS
When I turn up the volume on the KAV-300i a loud hum is present from the
loudspeakers; what could it be?
Hum can be caused by several different disturbances. Check to make sure
all of the cables into and out of the KAV-300i are sound and making proper
contact. Make sure there are no power supplies or hum inducing
components on top or directly below the KAV-300i.
You could also be experiencing a ground loop in the system. Put a 3 prong to
2 prong AC adapter (cheater plug) on the KAV-300i. This should eliminate
the hum. If the hum persists, you may need to repeat this procedure on
additional components in the system. Please contact your dealer or
equipment manufacturer before lifting the ground on any component.
Remember to always keep one major component grounded. If these
suggestions do not lead to a solution, please consult your dealer or KRELL.
. When I select the B1 input on the KAV-300i, one channel seems to have less
gain than the other. Is something wrong with the preamplifier?
. More than likely there is not a problem with the KAV-300i. The balanced
input or output internal cable terminations could be incorrect. Locate the
channel of the system that appears to have less gain. Switch that channel's
input cables. If the problem now appears in the other channel, it is a
defective cable. If the problem remains in the original channel, check the
KAV-300i output cables using the same procedure. If it is not cable or
source related, call your dealer or KRELL.
Check to make sure the Balance LED is not illuminated. If the Balance LED
is illuminated, correct the balance by pressing the balance control buttons
on the remote control until only the center balance LED is illuminated. (See
BALANCE on page 5).
. When I use my surround processor, where should I set the volume on the KAV-3007?
When using the KAV-300is Theater Throughput capability, the system
volume control is performed by the surround sound processor. This
eliminates the need to predetermine a proper volume setting for the
KAV-300i as the KAV-300is level control is not active in this mode (See
Optional Configurations page 6 for more information).
11

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 warranty on this page shall be in lieu of any other
warranty, expressed or implied, including, but not
limited to, any implied warranty of merchantability or
fitness for a particular purpose. There are no
warranties which exceed beyond those described in
this document. If this product does not perform as
warranted herein, the owner's sole remedy shall be
repair. In no event will Krell be liable for incidental or
consequential damages arising from purchase, use, or
inability to use this product, even if Krell has been
advised of the possibility of such damages.
Proof of purchase in the form of a bill of sale or
receipted invoice substantiating that the unit is within
the warranty period must be presented to obtain
warranty service. The warranty begins on the date of
retail purchase, as noted on the bill of sale or receipted
invoice from an authorized Krell dealer or distributor.
The warranty for Krell products is valid only in the
country to which they were originally shipped, through
the authorized Krell distributor for that country, and at
the factory. There may be restrictions on or changes to
Krell’s warranty because of regulations within a
specific country. Please check with your distributor for
a complete understanding of the warranty in your
country.
If a unit is serviced by a distributor who did not import
the unit, there may be a charge for service, even if the
product is within the warranty period.
Freight to the factory is your responsibility. Return
freight within the United States (U.S.A.) is included in
the warranty. If you have purchased your Krell product
outside the U.S.A. and wish to have it serviced at the
factory, all freight and associated charges to the factory
are your responsibility.
Krell will pay return freight to the U.S.A.-based freight
forwarder of your choice. Freight and other charges to
ship the unit from the freight forwarder to you are also
your responsibility.
12
Krell is not responsible for any damage incurred in
transit. Krell will file claims for damages as necessary
for units damaged in transit to the factory. You are
responsible for filing claims for shipping damages
during the return shipment.
Krell does not supply replacement parts and/or
products to the owner of the unit. Replacement parts
and/or products will be furnished only to the
distributor performing service on this unit on an
exchange basis only; any parts and/or products
returned to Krell for exchange become the property of
Krell.
No expressed or implied warranty is made for any Krell
product damaged by accident, abuse, misuse, natural
or personal disaster, or unauthorized modification.
Any unauthorized voltage conversion, disassembly,
component replacement, perforation of chassis,
updates, or modifications performed to the unit
will void the warranty.
The operating voltage of this unit is determined by the
factory and can only be changed by an authorized Krell
distributor or at the factory. The voltage for this
product in the U.S.A. cannot be changed until six
months from the original purchase date.
In the event that Krell receives a product for warranty
service that has been modified in any way without
Krell authorization, all warranties on that product will
be void. The product will be returned to original factory
layout specifications at the owner’s expense before it is
repaired. All repairs required after the product has
been returned to original factory specifications will be
charged to the customer, at current parts and labor
rates.
All operational features, functions, and specifications
and policies are subject to change without notification.
To register your product for warranty
benefits, complete and return the Warranty
Registration Card enclosed in the shipping
box within 15 days of purchase. Thank
you.

= RETURN AUTHORIZATION PROCEDURE
If you believe there is a problem with
your component, please contact your
dealer, distributor, or the Krell factory to
discuss the problem before you return
the component for repair. To expedite
service, you may wish to complete and
e-mail the Service Request Form in the
Service Section of our website at:
www.krellonline.com
To contact the Krell Service Department
TEL [phone]
Monday-Friday
9:00 AM to 5:00 PM EST
FAX [phone]
E-MAIL [email protected]
WEBSITE www.krellonline.com
KAV-300i
PRODUCT SERIAL NUMBER
13
To return this product to Krell,
please follow this procedure so that
we may serve you better:
1. Obtain a Return Authorization
Number (R/A number) and
shipping address from the Krell
Service Department.
2. Insure and accept all liability for
loss of or damage to this product
during shipment to the Krell
factory and prepay all shipping
charges. Please see the Warranty
page in this manual, concerning
liability for shipping damage and
shipping charges.
This product may also be hand
delivered if arrangements with the
Service Department have been made
in advance. Proof of purchase may be
required for warranty validation at the
time of hand delivery.
IMPORTANT
Use the original packaging to ensure
safe transit of this product to the dealer,
distributor, or factory. Krell may, at its
discretion, return this product in new
packaging and bill the owner for such
packaging if the product received by
Krell was boxed in non-standard
packaging or if the original packaging
was so damaged that it was unusable.
If Krell determines that new packaging
is required, the owner will be notified
before this product is returned.
To purchase additional packaging,
please contact your authorized Krell
dealer, distributor, or the Krell Service
Department.

SPECIFICATIONS
POWER/CHANNEL:
8 ohms 4ohms
150 watts 300 watts
FREQUENCY RESPONSE:
1 Hz to 100 KHz, +0dB, -3dB
SIGNAL TO NOISE:
-95 dB; “A” weighted
DISTORTION:
<0.06% THD Q 1KHz
<0.3% THD @ 20KHz
GAIN:
36.1 dB
INPUT VOLTAGE TO OVERLOAD:
9Vrms
INPUT IMPEDANCE:
210 Kohms
OUTPUT IMPEDANCE:
0.16 Ohm
POWER CONSUMPTION:
50 watts @ idle
TRANSFORMER:
400 VA
INPUTS:
1 balanced, 3 single-ended
OUTPUTS:
1 pair speaker outputs via five way binding posts
1 single-ended preamplifier output
THEATER THROUGHPUT:
1 single-ended and switchable
TAPE LOOP:
1 single-ended
DIMENSIONS:
Unit:
19.0" Wide 47.5 cm Wide
15.5" Deep 38.75 cm Deep
3.7" High 9.25 cm High
WEIGHT:
Shipping
33 Ibs. 14.9 kg
Unit only
25 Ibs. 11.4 kg
All operational features, functions, specifications, and policies are subject to change
without notification.