Krell Industries EVOLUTION 202 - Manual

Note
Save all packing materials. If you
need to ship the Evolution 202
in the future, repack the unit in
its original packaging to prevent
shipping damage.
Evolution 202
Stereo Preamplifier
QUICK SETUP GUIDE
Getting Started Thank you for your purchase of the Krell Evolution 202 preamplifier. The Evolution 202
features Krell Current Mode circuit topologies, Krell CAST technology, and a power-
ful, separate power supply for exceptional audio performance. A thoughtful suite of
menu options ensures that the Evolution 202 can be customized for the greatest
ease of operation.
Please contact your authorized dealer, distributor, or Krell if you have any questions
not addressed in the owner’s reference.
The Evolution 202 is comprised of two chassis: the preamplifier chassis and the
power supply chassis.
The preamplifier’s front panel provides power on, input and zone selection, level
control, menu functions, and status display. The rear panel allows connection to
audio sources, power amplifiers and other system components.
The power supply unit contains a powerful transformer, high quality regulators, and
extensive electrical and magnetic shielding, supplying optimum regulated DC power
to the preamplifier.
The remote control provides power, preamplifier, level control, navigation and
customization functions, CD and DVD player controls and menu configuration.
Do not place the preamplifier 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 fre-
quency interference (RFI) to be introduced into your playback system.
The ventilation grids on the top and bottom of the preamplifier 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 preamplifier 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 pro-
tective plastic wrapping.
We recommend that you place the preamplifier on top of the power supply unit.
Place them on a firm, level surface, away from excessive heat, humidity, or mois-
ture. The preamplifier requires at least two inches (5 cm) of clearance on each side
and at least two inches (5 cm) of clearance above to provide adequate ventilation.
Installations inside cabinetry may need extra ventilation.
WARNINGS
Krell Evolution 202 1
Unpacking
Krell Industries, Inc., 45 Connair Road,Orange, CT 06477-3650 USA
TEL 203-799-9954, FAX 203-891-2028, E-MAIL [email protected]
WEB SITE http://www.krellonline.com
Connecting the
Evolution 202
to Your System
The Evolution 202 preamplifier has superb regulation and does not require a dedi-
cated AC circuit. Avoid connections through extension cords or multiple AC
adapters. High quality 15 amp AC strips are acceptable. The use of AC line condi-
tioning devices is not recommended. The features provided by these devices are
already on board the Evolution 202.
Position the preamplifier and power supply where you intend to use them in your
system. Do not move the chassis after they are connected.
1. Connect the power supply chassis and the preamplifier chassis with the 12-pin
DC cable provided, using the back panel DC power connectors (24).
2. Neatly arrange and organize wiring to and from the preamplifier and all compo-
nents. Separate the AC wires from any audio cables to prevent hum or other
unwanted noise from being introduced into the system.
3. Connect the outputs of your source equipment to the appropriate CAST (18),
balanced (15), single-ended (16), or tape inputs (17) on the Evolution 202.
4. Connect the main outputs (20) on the Evolution 202 to your amplifier’s inputs.
5. Connect the supplied AC power cord to the IEC power cord receptacle (27) of
the power supply unit.
6. Plug the other end of the AC power cord into AC power. The display (3) scrolls
through EVOLUTION 202 SOFTWARE VERSION , and the stand-by/power LEDs (7) illu-
minate red, indicating that the Evolution 202 is in stand-by mode. When the
scrolling stops, the Evolution 202 is ready to be powered on.
Note
Use only the power cord provided with the Evolution 202 to make the connection to AC
power. Operation with a power cord other than the one supplied by Krell can induce noise,
limit current, or otherwise impair the ability of the preamplifier to perform optimally.
After the Evolution 202 is connected to your system and to AC power, and the front
panel display has stopped scrolling, begin operation:
1. Press the power button (1) on the front panel, or the remote control power key.
The standby/power LED turns blue. The display shows the factory default input:
S-1 , and level: -inf . The Evolution 202 is now in the operational mode.
2. With the preamplifier output muted, or the volume fully attenuated, select a
source manually using the front panel input select buttons (8, 9, or 10) or the
remote input select keys. Start playing the source. Use the level control knob
(14) or the remote level keys to set the volume to a comfortable level.
3. To return the preamplifier to the stand-by mode, press the power button (1) or
remote power key. (We recommend leaving the Evolution 202 in the stand-by
mode when it is not playing music.)
The balance function allows adjustment of the left and right balance. The options
are:
CENTER, L .5-5 dB <, R .5-5 dB >.
1. Press the preamplifier’s menu button (5), then use the level control knob, or the
remote control’s up and down keys to select: BALANCE.
2. Press the enter button (6) or remote enter key. The display shows the default
mode: CENTER.
3. Use the level control knob, or the up and down keys, to select the desired bal-
ance option from 0 to +5 dB in .5 dB increments, left or right.
4. Press the enter button or key to confirm the selection. The display reads:
BALANCE.
4 Krell Evolution 202
Operating the
Evolution 202
This product complies with the EMC directive (89/336/EEC)
and the low-voltage directive (73/23/EEC).
1 Preamplifier chassis
1 Power supply chassis
1 IEC connector (AC power) cord
1 12-pin DC supply cable 1 Remote control
2 AAA remote batteries
1 T-10 Torx wrench for remote
1 Owner’s reference
Placement
AC POWER GUIDELINES
MODEL SERIAL NUMBER
Evolution 202 Preamplifier
P/N 309157
v 06.0
Overview
The owner’s reference for this
product, including a detailed
description of features, technolo-
gies, and warranty is available on
the web at: www.krellonline.com
Channel Balance
Adjustment
Krell recommends using its
proprietary Krell CAST system
for unparalleled sonic perfor-
mance for connections
between the preamplifier and
other CAST-equipped compo-
nents. Krell CAST uses flexible
interconnecting cables that
can be drawn through tight
spaces and concealed.
The Evolution 202 also offers
balanced operation. This not
only minimizes sonic loss but
is also immune to induced
noise, especially for installa-
tions using long cables.