Krell Industries Evolution 309323 User Manual

Getting Started

T

HE LEADER IN AUDIO ENGINEERING

The owner’s reference for this
product, including a detailed
description of features, technolo­gies, and warranty is available on
the web at: www.krellonline.com

Evolution 222

Stereo Preamplifier

QUICK SETUP GUIDE

hank you for your purchase of the Krell Evolution 222 Stereo Preamplifier. The Evo-

T
lution 222 features Krell Current Mode circuit topologies, Krell CAST technology,
and a robust power supply for exceptional audio performance. A thoughtful suite
of menu options ensures that the Evolution 222 can be customized for the greatest

ase of operation.

e

Please contact your authorized dealer, distributor, or Krell if you have any questions
not addressed in the owner’s reference.

Overview

WARNINGS

Unpacking

Note

Save all packing materials. If you
need to ship the Evolution 222
in the futur
its original packaging to pr
shipping damage.

epack the unit in

e, r

event

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, AC power, and other system components.

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 fre­quency 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:

1 Preamplifier chassis
1 IEC connector (AC power) cord
1 Remote control

2 AAA remote batteries
1 T-10 Torx wrench for remote
1 Quick Setup Guide

2. Carefully remove all items from the shipping box.

3. Place the preamplifier in a safe location and remove the protective plastic wrap­ping.

Placement

AC POWER GUIDELINES

This product complies with the EMC directive (89/336/EEC)
and the low-voltage directive (73/23/EEC).

We recommend that you place the preamplifier on a firm, level surface, away from
excessive heat, humidity, or moisture. The preamplifier requires at least two inches
(5 cm) of clearance on each side and at least two inches (5 cm) of clearance above

ovide adequate ventilation. Installations inside cabinetry may need extra venti-

to pr
lation.

The Evolution 222 preamplifier has superb regulation and does not require a dedi­cated AC cir

cuit. Avoid connections through extension cords or multiple AC
adapters. High quality 15 amp AC strips are acceptable. The use of AC line condi­tioning devices is not r

eady on boar

alr

d the Evolution 222.

ecommended. The featur

es provided by these devices are

Krell Evolution 222 1

igure 1 The Evolution 222 Front Panel

F

Front Panel
Functions

Figure 2
The Evolution
222 Remote
Control

1 Power

Use this to switch the
preamplifier between
stand-by and opera-

ional modes.

t

2 Infrared emitter

This transmits infrared
commands to a pro­grammable remote con­trol, such as the
Universal Krell Touch
Screen Remote.

3 Display

This provides channel
status messages, in­cluding input selection,
volume level, balance
offset, and menu selec­tions.

4 Infrared sensor

This receives com­mands from the remote

control. Make sure this

is not obstructed.

5 Menu button

Use this to access the

menu functions of the

Evolution 222. For

more information, see

Customizing the

Evolution 222, in the

owner’s reference.

6 Enter button

Use this to configure the

menu functions of the

Evolution 222. See

menu (5).

7 Stand-by/Power LED

This preamplifier and

power supply LED illu-

minates red (stand-by)

when the Evolution 222

is plugged into a stan-

dard AC wall receptacle.

The LED illuminates blue

(operational mode) when

the power button (1) is

Remote Control
Functions

Keys labeled 1 to 14

have the same function
(and callout number) as the
front panel controls.

Keys labeled A through J

e unique to the r

ar

mote contr

described below:

Amp Pwr key

A

Use this to activate Krell

amplifiers connected to

your system.

ol, and ar

e-

e

pressed while the
Evolution 222 is in
stand-by mode.

8, 9, and 10 Input

selectors

Use these to select the
corresponding rear
panel input that is con­nected to a single­ended (S-1, S-2, S-3),
balanced (B-1, B-2), or
CAST (C-1, C-2) analog
source. The display (3)
shows the selected
input and volume level.

11 Tape input selector

Use this to select the
tape input that is con­nected to an analog
tape source. The red
LED illuminates when
the tape input is select­ed. The display (3)
shows: TAPE and the
main volume level.

B Amp Sel key

Use this to select the
meter range of the
power meter scale on
the front of a Krell
Evolution One amplifier.

C Bal(ance) keys

Use along with the level
keys (14), to balance left
and right output levels.

Transport keys

D

These keys ar
al with all Krell CD and
DVD players.

E Menu key

Use this to enter CD or
DVD player menus.

F Direction keys

Use these keys to navi
gate CD and DVD
menus.

e function

12 Mute button

Use this to mute the
preamplifier output. To
unmute, press the mute
button again. The red
LED illuminates when
mute is selected.

13 Phase button

Use this to invert the
absolute polarity of the
main output. The red
LED illuminates when
phase is selected.

14 Level control knob

Use this knob to
increase or decrease
system volume level or,
with the remote control’s
balance keys, to adjust
the balance. The level
control knob or keys
also select menu
options that customize
the Evolution 222.

G Select key

Use this to make selec­tions fr
menus.

CD key

H

Press this to make the
transport keys operate
Krell CD players.

I DVD key

Press this to make the
transport keys operate
DVD players.

-

J Title key

Use this with CD or DVD
player menus.

Note

The remote is shipped

-

with two AAA batteries
that have to be instal­led. Use the supplied

orx wr

T
the battery panel, then
install the batteries.

om CD and DVD

ench to remove

2 Krell Evolution 222

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. Krell Current Mode™ and Evolution CAST™ are
trademarks of Krell Industries, Inc. All other trademarks and trade names are registered to their respective companies.
© 2006 by Krell Industries, Inc., All rights reserved.