Krell Industries Vanguard Series Quick start guide

© 2015 by Krell Industries, LLC
All rights reserved
Vanguard Family - Owner's Reference
www.krellonline.com
Vanguard Universal DAC w/Digital Preamp Option (DAC)
Vanguard Integrated Amplier (VIA)
Digital Vanguard Integrated Amplier (DVI)
Foundation 4K UHD Processor OWNER’S REFERENCE

© 2015 by Krell Industries, LLC
All rights reserved
Vanguard Family - Owner's Reference
www.krellonline.com 2
Table of Contents
Getting Started______________________(3)
(DAC) Vanguard Universal DAC:
Front Panel_________________________(5)
Rear Panel Diagram_________________ (6)
Remote Diagram____________________ (7)
(VIA) Vanguard Integrated Amplifier
& Digital Vanguard Integrated
Amplifier (DVI) Front Panel___________ (8)
(VIA) Vanguard Integrated Amplifier
and Digital Vanguard Integrated Amplifier
(DVI) - Rear Panel__________________ (9)
All Vanguards Software Update__________(12)
Spotify Connect App___________________(13)
mconnect Control App__________________(14)
Warranty_____________________________(20)
Service ______________________________(22)
Specifications_________________________(23)
Krell Contact Information_______________ (25)
*Roon and Spotify are only available on the DVI and DAC versions.

© 2015 by Krell Industries, LLC
All rights reserved
Vanguard Family - Owner's Reference
www.krellonline.com 3
Getting Started
WARNINGS
This product complies with the EMC directive
(89/336/EEC) and the low-voltage directive
(73/23/EEC).This CLASS 1 apparatus must be
connected to anAC MAIN socket outlet with a
protective earthing connection
Thank you for your purchase of a Krell
Vanguard component. The Vanguard Family
includes the Vanguard Universal DAC w/Digital
Preamp Option (DAC), the Digital Vanguard
Integrated Amplier (DVI) and the Vanguard
Integrated Amplier (VIA).
This manual covers all three Vanguard models
and notes differences where appropriate.
The Vanguard Integrated Amplier can be equipped
with or without the Optional Digital Module that is
used in the Vanguard Universal DAC and Digital
Vanguard Integrated Amplifier.
All Vanguard models feature discrete signal paths
from input to output and employ a wide bandwidth
design with low negative feedback for sonic accuracy
throughout the frequency spectrum. All circuits up to
the driver stage operate in pure Class A.
Krell’s surface mount technology (SMT) means that
Vanguard components employ the most sophisticated
circuit designs possible without requiring the typical
space. SMT allows individual 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 reliability. This combination of sophis-
ticated circuitry and small space makes it possible to
design and manufacture a very high powered 200W
per channel amplier in a small enclosure. The Van-
guard is easy to operate and integrate into your
system. The remote control accesses all functions, and
remote control connection options allow the Vanguard
to be easily connected with other components.
The Theater Throughput (Digital Vanguard
Integrated Amplifier and Vanguard Integrated
Amplier) feature provides easy integration of these
models into a home theater system.
The optional digital module (Vanguard Integrated
Amplier) adds a full range of digital technologies
and connections that are already included in the
Vanguard Universal DAC and Digital Vanguard
Integrated Amplier.
WARNING: Do not place the component where it
could be exposed to dirt or excessive moisture. The
ventilation grids on the top and bottom of the
Vanguard must be unobstructed at all times. Do not
place ammable material on top of or beneath the
unit. When making connections to this or any other
model, make sure all components are off. Turn off all
system power before connecting the Vanguard to any
other component. Make sure all cable and speaker
wire terminations are of the highest quality, free from
frayed ends, short circuits or cold solder joints.

© 2015 by Krell Industries, LLC
All rights reserved
Vanguard Family - Owner's Reference
www.krellonline.com
Unpacking / Placement / AC Power Guidlines
4
Open the shipping box and remove the top layer of
foam. You will see these items:
1. Vanguard unit and Accessories - Included
A. 1 AC power cord
B. 1 handheld remote control
C. 2 AAA batteries
D. 1 CD w/ owner’s reference
E. 1 warranty registration card
F. 1 trigger cable
G. 1 T-10 Torx Screwdriver
2. Carefully remove all items from the shipping box.
3. Place the preamplier and power supply in a safe
location and remove the protective plastic wrapping.
Place the Vanguard on a rm, level surface, away
from excessive heat, humidity, or moisture. The
Vanguard is a precision instrument and should be
handled with the utmost care when deciding where
it is to be placed and while it is being unpacked and
nally installed. Make sure the installation location
is dry and level, and able to provide adequate ven-
tilation. The Vanguard runs warm to the touch and
requires the bottom and top of the unit be free from
obstruction with good circulation of air. Allow a
minimum of 2 inches (5cm) above the unit for proper
ventilation, and at least one inch (2.54 cm) on each
side. Additional ventilation may be required when
the unit occupies the same space with other electron-
ics that generate heat, like power ampliers. Please
consult an authorized KRELL dealer or KRELL
Industries to insure proper installation guidelines.
The Vanguard is designed to work all over the world.
The operating voltage is determined at the factory and
is specically set to operate in the country of nal
destination. The Vanguard requires good clean power
and doesn’t require additional ltration. A 15 Amp
circuit is recommended for the Vanguard.
Note:
The Vanguard may not operate correctly when AC
regeneration or voltage conversion devices are
utilized, but at a minimum, they must be rated for the
maximum power consumption of the Vanguard.
Note:
Save all packing materials; if you need to ship the
Vanguard in the future, repack the unit in its original
packaging to prevent shipping damage.
Recommended Cleaning Instructions for Krell Products
Clean your Krell product gently, using a high quality
lint-free cloth that has not been treated with chemicals
of any kind.
Please note the following: Do not use cleaning agents
of any kind, such as water, alcohol, or other common
cleaning products.
Thank you.

© 2015 by Krell Industries, LLC
All rights reserved
Vanguard Family - Owner's Reference
www.krellonline.com
The Vanguard Universal DAC Figure 1 -- Front Panel
uPower
Use this button to switch the Vanguard between
stand-by and operational modes.
vStand-by Indicator
The stand-by indicator illuminates red when the
Vanguard is plugged into a standard AC wall
receptacle and the rear panel power switch is in the
ON position. The indicator illuminates blue when the
Vanguard is in operational mode.
wInfared Sensor
IR receives commands from the remote control. Make
sure this is not obstructed.
xFront Panel Display
The front panel display shows the input selected,
volume, balance, and Theater Throughput status.
yUSB input
For playback of audio les from a USB ashdrive.
(Please see page 14 - mConnect App)
5
uwvxw
y

© 2015 by Krell Industries, LLC
All rights reserved
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The Vanguard Universal DAC Figure 2 - Rear Panel
 HDMI Inputs and Outputs
The Vanguard is equipped with 2 HDMI Inputs and 1
Output.
Ethernet
The Ethernet port connects the Vanguard to a home
network for control, firmware updates and network
streaming.
IR In
The Vanguard is equipped with an RC-5 input that
makes custom installation easy and secure by
accepting baseband RC-5 input commands from a
remote IR detector or hard wired remote controllers.
12 VDC In/Out (12 V trigger)
The 12 V Trigger input allows you to place the
Vanguard into the stand-by or operational mode from
other components. The 12 V trigger output allows the
Vanguard to turn other components on or off.
Power Switch
Use this power switch to change the Vanguard from
off to the stand-by mode.
AC Power Cord Receptacle
The connector is for use with the provided IEC stan-
dard 15 amp power cord. This connector and power
cord must remain unobstructed for easy removal in
case of emergency.
BalancedAnalog Outputs
The Vanguard is equipped with one pair of
balanced outputs via XLR connectors.
Single-EndedAnalog Outputs
The Vanguard is equipped with one pair of single-
ended outputs via RCA connectors.
DigitalAudio Inputs
The Vanguard is equipped with one coaxial and
one optical digital input.











Using this disables the front panel IR detector.

© 2015 by Krell Industries, LLC
All rights reserved
Vanguard Family - Owner's Reference
www.krellonline.com 7
Remote Control Buttons have the same function as the
front panel controls, when applicable.
uPower
Use this button to switch the
Vanguard between stand-by and operational modes.
vMute Button
Use this to mute the Vanguard output. To un-mute,
press the mute button again.
wAnalog Input Buttons (VIAand DVI)
Use these buttons to select analog inputs on the
Vanguard.
xDigital Input Buttons (DVI, DAC)
Use these buttons to select digital inputs on the
Vanguard. Note: These buttons are only active when
the optional digital module is installed.
yBAL (Balance) Buttons (VIA,DVI)
Use these buttons to shift the balance to the left or the
right channel. Note: In menu mode, the balance but-
tons are used for left and right navigation.
zThe Enter button
Use the enter button to conrm menu selections.
{Volume Up/Down Buttons
Adjusts volume up and down on VIA, DVI and
DAC with a range of 0-100.
|Menu Button
Use this to access the menu functions of the Vanguard
}CD / DVD Transport Control
Not in use for Vanguard; used to control basic
CD / DVD functions on other Krell products.
Vanguard Integrated Amplifier / Digital Vanguard Integrated Amplifier
Vanguard Universal DAC Figure 3 - Remote Control
Note: The remote comes with two AAA batteries
that have to be installed. Use the supplied Torx
Screwdriver to remove the 4 battery panel Torx
screws (T10) then install the batteries.
}
{
y
w
u
x
v
z
|

© 2015 by Krell Industries, LLC
All rights reserved
Vanguard Family - Owner's Reference
www.krellonline.com
uPower
Use this button to switch the Vanguard between stand-
by and operational modes.
vVolume/Navigation Up/Down Buttons
Use these buttons to adjust the amplier output level
and navigate through the menu system. The output
level is indicated numerically on the front panel
display, with a range from 0-100.
w Left/Right Navigation Buttons Use these but-
tons to navigate through the menu system.
xEnter Button
Press the enter button or use the enter key to conrm
menu selections.
yMute Button
Use this to mute the Vanguard output. To un-mute,
press the mute button again.
z Menu Button
Use to access the menu functions of the Vanguard.
{Source Button
Use this button to select the source functions of the
Vanguard.
|Stand-by Indicator
The stand-by indicator illuminates red when the Van-
guard is plugged into a standard AC wall receptacle
and the rear panel power switch is in the ON position.
The indicator illuminates blue when the Vanguard is
in operational mode.
}Front Panel Display
The front panel display shows the input selected, vol-
ume, balance, and Theater Throughput status.
~Infrared sensor
Receives commands from the remote control. Make
sure this is not obstructed.
USB input
Only active when optional digital module is installed.
(Please see page 13 - mConnect App)
8
Vanguard Integrated Amplifier and Digital Vanguard Integrated Amplifier Figure 4 - Front Panel
vw|
x
z
{
}~
y
u

© 2015 by Krell Industries, LLC
All rights reserved
Vanguard Family - Owner's Reference
www.krellonline.com
Fans
The Vanguard is equipped with two cooling fans. Be
sure to leave them unobstructed for proper ventilation.
Loudspeaker Outputs
The Vanguard is equipped with gold-plated binding
posts for each amplifier channel.
Ethernet
The Ethernet port connects the Vanguard to a home
network for control, firmware updates and, network
streaming for DVI.
BalancedAnalog Inputs
The Vanguard is equipped with one pair of balanced
(B-1) inputs via XLR connectors.
Single-EndedAnalog Inputs
The Vanguard is equipped with three pairs of single-
ended (S-1, S-2, or S-3 on Remote) inputs via RCA
connectors.
Vanguard Integrated Amplifier and Digital Vanguard Integrated Amplifier Figure 5 - Rear Panel
IR In
The Vanguard is equipped with an RC-5 input that
makes custom installation easy and secure by accept-
ing baseband RC-5 input commands from a remote IR
detector or hard wired remote controllers.
12 VDC In/Out (12 V trigger)
The 12 V Trigger input allows you to place the Van-
guard into the stand - by or operational mode from
other components. The 12 V trigger output allows the
Vanguard to turn other components on or off.
Power Switch and Connector
The connector is for use with the provided IEC stan-
dard 15 amp power cord. This connector and power
cord must remain unobstructed for easy removal in
case of emergency. Use this power switch to change
the Vanguard from off to the stand-by mode.
Digital Connections module (DVI)
The optional digital connections module adds one
coaxial, one optical, two HDMI inputs and one HDMI
output.
(DVI Only)
VIA / DVI
HDMI
Using this disables the front panel IR detector.
9

© 2015 by Krell Industries, LLC
All rights reserved
Vanguard Family - Owner's Reference
www.krellonline.com
Operating the Vanguard When powering up any sys-
tem, always turn ampliers on last. When powering
down, always turn ampliers off rst.
1. When the amplier is in stand-by mode - with the
red stand-by indicator (2) - turn the amplier on by
pressing the power button on the front panel or the
power key on the remote control (1). There are audi-
ble clicks and the blue power indicator (2) will illumi-
nate. The Vanguard is now in the operational mode.
2. With the amplier in the mute position, or the vol-
ume control fully attenuated (O), select a source (4)
from the front panel or the remote control.
3. Start playing the source.
4. Set the volume to a comfortable listening level
using the up or down keys on the front panel or the
level keys on the remote control (3).
5. To turn the amplier off, press the power button on
the front panel or the power key on the remote control
(1). The red stand-by indicator (2) illuminates. It is
now safe to turn off the rest of the system.
Vanguard Integrated Amplifier/Digital Vanguard Integrated Amplifier - Operating the Vanguard
10
Menu Options (from Remote or Front Panel)
The Vanguard menu system offers a number of
options and information. Main selections include:
• Source Setup
• Network Setup
• Diagnostic Mode
• Software Version
• Software Update
• Display Setup
• Restore Settings
• Save Settings
• Serial Number
Press the Vanguard's Menu button (7), then use the
navigation buttons or keys to highlight one of the
menu options. Press the Enter button or key to select.
Source Setup
Press the Enter button and use the Up or Down but-
tons to highlight the desired parameter to edit. Press
the Enter button to select. Assign Names: The rst
input is displayed. Press the Up or Down buttons to
select a different source.
To edit the currently displayed source, press the Enter
button and the cursor will begin ashing at the rst
character eld. Use the Up or Down buttons to change
the character. Use the Right or Left buttons to move
the blinking cursor to another character and repeat the
editing procedure. Press Enter to conrm changes.
Press the Up or Down buttons to select a different
source and repeat the editing process. The edited
name will appear when the Source button is pressed
on the remote or front panel. The new source name
u
wv
x
{
•Operation Mode