Krell Vanguard User Manual

AC POWER GUIDELINES

THE LEADER IN AUDIO ENGINEERING

Connecting the
Vanguard
to Your System

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 value in mind.

Operating the
Vanguard

Because of its powerful amplifier channels and high-capacity power supply, the Vanguard will
benefit from a dedicated AC circuit. Avoid connections through extension cords or multiple AC
adapters. High quality AC power strips are acceptable. Please contact your authorized Krell
dealer, distributor befor using any devices designed to alter or stabilize the AC power for the
Vanguard.

Follow these steps to conect the Vanguard to your system.

1. Make sure all power sources and components are off before connecting inputs and
outputs.

2. Neatly organize wiring between the Vanguard and all system components. Separate AC
wires from audio cables to prevent hum or other unwanted noise from being introduced
into the system.

3. Connect an Ethernet cable from your network router to the integrated amplifier's Ethernet
port (14). Although, not necessary for operation, connection to your home network allows
easy software updates for future feature enhancements.

4. Connect the left and right loudspeaker cables to the integrated amplifier's left and right
loudspeaker output terminals (13).

5. Connect the left and right outputs of your source components to the appropriate analog
inputs (15, 16) on the Vanguard.

6. If equipped with the optional digital module, connect digital sources to the appropriate
digital inputs (20) on the Vanguard.

7. Plug the AC cord into the IEC connector (19) on the back panel of the Vanguard. Plug the
remaining end into the AC wall receptacle. Turn on the power switch on the rear panel.
The red stand-by indicator (2) illuminates and the display shows the software version,
serial number, and IP address.

When powering up any system, alway turn amplifiers on last. When powering down, always
turn amplifiers off first.

1. When the amplifier is in stand-by mode, with the red stand-by indicator (2), turn the
amplifier on by pressing the power button on the front panel or the power key on the
remote control (1). There are audible clicks. The blue power indicator (2) illuminates. The
Vanguard is now in the operational mode.

2. With the amplifier in the mute position, or the volume control fully attenuated, select a
source 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 amplifier 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.

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 a MAINS
socket outlet with a protective
earthing connection.

Unpacking

Note

Save all packing materials. If
you need to ship the Illusion II
in the future, repack the unit in
its original packaging to prevent
shipping damage.

Vanguard

Integrated Amplifier

SETUP GUIDE

Thank you for your purchase of the Krell Vanguard Remote Control Integrated Amplifier.
This fully integrated amplifier and preamplifier has a discrete 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 operate in
pure Class A.

Krell’s new surface mount technology (SMT) means that the Vanguard is an integrated
amplifier with big power—200 Watts per channel—that does not require big 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 reliablilty.

The Vanguard is easy to operate and integrate into your system. The remote control
accesses all amplifier functions, and remote control connection options allow the
Vanguard to be easily connected with other components. The Theater Throughput feature
provides easy integration of the amplifier into a home theater system. An optional digital
module adds a full range of digital technologies and connections.

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

Do not remove or bypass the ground pin on the end of the AC cord. This may cause radio
frequency interference (RFI) to be introduced into your playback system.

The ventilation slots on the top and bottom of the integrated amplifier must be
unobstructed at all times during operation. Do not place flammable material on top of or
beneath the component.

Turn off all systems’ power before connecting the integrated amplifier to any 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.

1. Open the shipping box and remove the top layer of foam. You will see these items:
1 Vanguard unit

1 Owner's Reference

1 Remote control

1 T-10 Torx wrench for remote

2 AAA remote batteries

2. Carefully remove all items from the shipping box.

3. Place the preamplifier and power supply in a safe location and remove the protective

plastic wrapping.

4 Krell Vanguard

TEL [phone], FAX [phone], E-MAIL [e-mail]
WEB SITE http://www.krellonline.com

Placement

MODEL: Vanguard Integrated Amplifier

Place the Vanguard on a firm, level surface, away from excessive heat, humidity, or
moisture. The integrated amplifier requires at least one inch (2.54 cm) of clearance
on each side and at least two inches (5 cm) of clearance above to provide ade-quate
ventilation. Installations inside cabinetry may need extra ventilation.

SERIAL NUMBER:

Krell Vanguard 1Krell Industries, LLC., 45 Connair Road,Orange, CT 06477-3650 USA

11

Figure 1 The Vanguard Front Panel

1 3 8117

5

4

6

Figure 3 The Vanguard Back Panel

12

92

10

20

16 19

17

1813 1514

Front Panel

Remote
Control

Figure 2
The Vanguard
Remote Control

1 Power

Use this button to switch the
Vanguard between stand-by and
operational modes.

2 Stand-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 1 position. The indicator
illuminates blue when the Vanguard
is in operational mode.

3 Volume/Navigation Up/Down

Buttons

Use these buttons on the front panel
to adjust the amplifier output level
and navigate through the menu
system. The output level is indicated
numerically on the front panel
display, with a range from 0-150.

1

8

10

3

4 Left/Right Navigation Buttons

Use these buttons on the front panel
or on the remote control to navigate
through the menu system.

5 Enter Button

Press the enter button or use
the enter key to confirm menu
selections.

6 Mute Button

Use this to mute the Vanguard
output. To unmute, press the mute
button again.

7 Menu Button

Use this button to access the menu
functions of the Vanguard.

Keys labeled 1 to 7

have the same function (and

6

9

5
7

callout number) as the front panel
controls.

8 Analog Input Keys

Use these keys to select analog
inputs on the Vanguard.

9 Digital Input Keys

Use these keys to select digital
inputs on the Vanguard. Note:
These keys are only active when
the optional digital module is
installed.

10 BAL (Balance) Keys

Use these keys to shift the balance
to the left or the right channel: In
menu mode, the balance keys are
used for left and right navigation.

11 CD / DVD Transport Control

Used to control basic CD / DVD
functions on other current Krell
products.

Note
The remote comes with two AAA

batteries that have to be installed.
Use the supplied Torx wrench to
remove the battery panel, then
install the batteries.

8 Source button

Use this button to access the source
menu.

9 Front Panel Display

The front panel display shows the
input selected, volume, balance,
and Theater Throughput status.

10 Infrared sensor

Receives commands from the
remote control. Make sure this is
not obstructed.

11 USB input

Only active when optional digital
module is installed.

Back Panel

12 Fans

The Vanguard is equipped with two
cooling fans. Be sure to leave them
unobstructed for proper ventilation.

13 Loudspeaker Outputs

The Vanguard is equipped with
standard binding posts for each
amplifier channel.

14 Ethernet

The Ethernet port connects the
Vanguard to a home network for
contol and firmware updates.

15 Balanced Analog Inputs

The Vanguard is equipped with one
pair of balanced (B-1) inputs via
XLR connectors.

16 Single-Ended Analog Inputs

17 IR In

18 12 VDC In/Out (12 V trigger)

The 12 V Trigger input allows you to

Menu Options

The Vanguard menu system offers a number of options and
information. Main selections include Source Setup, Serial Number,
Save Settings, Restore Settings, Display Setup, Software Update,
Software Version, Diagnostic Mode, and Network Setup. 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.

Network Setup

Press the up or down button to view the various network parameters.
Press the Enter button to see the value for the displayed parameter.

IP Address: The default network discovery is DHCP. If the Vanguard
is connected to an active network, it automatically acquires an IP
address. To enter an IP address manually, change the Vanguard to
Static IP operation. To change to Static IP operation, press the Enter
button at the IP Address sub menu. Press the Up or Down button to
change the setting to Static. Press the Enter button to display the IP
address. Press the Right button to move the cursor to number to be
edited. Press the Enter button again and the selected number of the
IP Address will begin blinking. Use the Up or Down button to edit the
IP Address value. Press the Enter button to confirm change. Press
the Left or Right button to move the cursor to another number in the
IP address and repeat editing process. Use the same process to edit
the other network settings.

Note: the MAC Address is a factory set value and is not user
editable.

Source Setup

Press the Enter Button and use the Up or Down button to highlight
the desired parameter to edit. Press the Enter button to select.

19 IEC Connector/AC Power Breaker

The Vanguard is equipped with three
pairs of single-ended (S-1, S-2, or
S-3) inputs via RCA connectors.

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 hardwired remote controllers.

place the Vanguard into the stand­by or operational mode from other
components. The 12 V trigger output
allows the Vanguard to turn other
components on or off.

The connector is for use with

the provided IEC standard 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.

20 Optional Digital module

The optional digital module adds

one coaxial, one optical, two HDMI
inputs and one HDMI output.
Additionally, the USB input on the
front panel is activated. Bluetooth
and Ethernet streaming are also
added input sources.

Assign Names: The first input, BAL : BALANCED is displayed.
Press the Up or Down button to select a different source. To edit
the currently displayed source, press the Enter button and the
cursor will begin flashing at the first character field. Use the Up or
Down button to change character. Use the Right or Left button to
move the blinking cursor to another character and repeat editing
procedure. Press Enter to confirm change. Press the Up or Down
button to select a different source and repeat editing process. The
edited name will appear when the Source button is pressed on the
remote or front panel. The new source name will also appear on a
web connected device. Press the Left button to return to the Source
Setup Menu

Theater Mode: Theater Mode bypasses the Vanguard volume
control and passes the left and right output of a surround processor
directly to the Vanguard left and right amplifiers. Use the Left
and Right to highlight the input that is connected to the surround
processor.Press the Enter button and the cursor will begin flashing
in the the Disabled field. Press the Up or Down button to change to
Enabled and press the Enter button to select.

Level Trim

The level trim allows for output adjustment between sources. Press
the Enter button and the source field will start flashing. Press the Up
or Down button to select a different source to edit. Press the Enter
and the dB field will begin flashing. Press the Up or Down button to
increase or decrease output. Press the Up or Down button to select
a different source to edit and repeat the editing process. When
finished, press the Enter button and then the Left button to return the
Source Setup sub menu.

2 Krell Vanguard Krell Vanguard 3

This product is manufactured in the United States of America. Krell ® is a registered trademark of Krell Industries, LLC., and is restricted for
use by Krell Industries, LLC. its subsidiaries, and authorized agents. Krell Current Mode™ and CAST™ are trademarks of Krell Industries,
LLC. All other trademarks and trade names are registered to their respective companies.
© 2014 by Krell Industries, LLC., All rights reserved.