Vanguard
Integrated Amplifier
SETUP GUIDE
Getting Started
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:
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.
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.
Krell Vanguard 1
Krell Industries, LLC., 45 Connair Road,Orange, CT 06477-3650 USA
TEL 203-298-4000, FAX 203-891-2028, E-MAIL [email protected]
WEB SITE http://www.krellonline.com
Connecting the
Vanguard
to Your System
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.
4 Krell Vanguard
Operating the
Vanguard
1 Vanguard unit
1 Owner's Reference
1 Remote control
1 T-10 Torx wrench for remote
2 AAA remote batteries
Placement
AC POWER GUIDELINES
SERIAL NUMBER:
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.
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.
MODEL:
Vanguard Integrated Amplifier
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.
THE LEADER IN AUDIO ENGINEERING
