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Krell Evolution 222 3
F
igure 3 The Evolution 222 Back Panel
Back Panel
Functions
15
Balanced inputs: B-1
and B-2
These XLR balanced
analog source input
connectors are wired
as follows:
Pin 1 Ground
Pin 2 Non-inverting
Pin 3 Inverting
16 Single-ended inputs:
S-1, S-2, and S-3
There are 3 single-
ended analog source
inputs with RCA con-
nector pairs.
Customizing the
Evolution 222
17 Tape input
This single-ended input
pair is for use with a
tape source.
18 C-1 and C-2 inputs
The two CAST inputs
have 4-pin bayonet
connectors, for use with
Krell CAST-equipped
input devices.
19 Tape output
This single-ended out-
put pair is used for
recording the selected
input source.
20 Main outputs
The Evolution 222 is
equipped with one bal-
anced XLR output pair,
one single-ended RCA
output pair, and two
CAST output pairs with
4-pin bayonet connec-
Configurable
Functions
AC Mains
Balance (channel)
Balance (input trim)
Display, Info
Input Level Trim
Input Name
Input Phrase
Input T
rigger
IR Out Control
Link Control
Mute, Output T
rigger
RC-5 Control, Recall
RS-232 Control, Save
Theater Mode
Volume Display
The menu button or key (5)
allows you to configure
functions. Enter the menu
to view the list of config
-
urable functions.
Select a configurable func-
tion to view a submenu of
the list of options that con
-
figure the function. You can
configure some options as
well, if a second submenu
appears when you select
an option.
Navigation
Conventions
Navigating the preamplifier
menu is straightforwar
d and
consistent thr
oughout, using
4 functions and the menu
option BACK.
5 Menu Button or Key
T
o enter the menu,
press the menu button
BACK
Select back to scr
oll
backwards through the
menu hierarchy, or to
exit a menu option with
-
out confirming that
option.
For more information on
menu configuration, r
eview
the Owner’s Reference on
the Krell website at
www
.krellonline.com.
Navigate to Downloads/
Current, then select the
Evolution 222 fr
om the
pr
oduct list. The publication
list for the Evolution 222
appears.
or key. Once you are in
the menu, you can
press the menu button
or key to exit the menu.
14 Level Control Knob
or Up and Down Keys
Use the level control
knob or the up and
down keys on the re-
mote control to scroll
forwar
d and backwar
d
thr
ough the menu hier
-
archy. Each menu list is
a continuous loop.
6 Enter Button or Key
Press this button or key
to select a function or a
configuration option,
and confirm a selection.
3 Front Panel Display
The display shows the
active function and con
-
figurable options.
tors (for use with Krell
CAST-equipped ampli-
fiers).
21 CAN link
These RJ-45 link con-
nectors ar
e connected
in parallel. They are
used to operate pream-
plifier channels in linked
mode. See CAN Link, in
the owner’s reference
for more details.
22 RS-232 port
This port receives mes-
sages from a computer-
based control system,
providing integrated
control of all preamplifier
functions. For details,
see the developer's ref-
erence:
RS-232 Port:
Sending Commands
and Interpreting Data.
23 RC-5 in
This remote connector
is used with third-party
remote control systems
that provide RC-5 (IR)
data via a wired con-
nection. A stereo tip,
ring, sleeve 1/8” mini
connector is used in the
following configuration:
Tip = RC-5 data
Ring = +5 V
Sleeve = GND.
24 12 VDC in/out
(12 V trigger)
There are 2 outputs and
one input that send and
receive 12 VDC power
on/off (trigger) signals to
and from other Krell
components, and other
devices that incorporate
a 12 V trigger. This
allows other compo-
nents to be turned
on/off, or to/from stand-
by, through the remote
control.
For more information,
see
Input T
rigger
in the
owner’s reference.
25 Phono power port
This is for connecting
the preamplifier to a
Krell KPE phono stage.
See the KPE owner’s
reference for more
details.
26 IEC power cord
receptacle
This is for use with the
provided AC power
cord. Plug the other end
into an AC Mains supply
capable of supplying
the correct AC voltage
and current for the
power supply.