Connecting the Full Power Balanced
Amplifier to Your System
. Insert the end of the AC mains power cord
into the AC wall receptacle.
INPUT AND OUTPUT
. Proceed with Krell Link Connections, if
desired, or turn to Amplifier Operation, on
Krell recommends using its proprietary Krell
CAST system for unparalleled sonic perfor-
mance between the Full Power Balanced
amplifiers and other CAST-equipped compo-
nents and the KPS 25sc Krell Playback Sys-
KRELL LINK CONNECTIONS
Krell Link Remote out/in connectors on the
back panel of the Full Power Balanced amplifi-
er allow you to synchronize remote control
operation for systems that include multiple
amplifiers and associated components. When
the Krell Link Remote out/in connectors are
used, the remote capabilities of the linked com-
ponents are controlled from one amplifier or
preamplifier, called the control component. The
linked components respond to stand-by and
operational mode commands from the control
component via MIDI cables.
Full Power Balanced amplifiers also offer bal-
anced operation. The circuitry and connections
associated with balanced operation not only
can minimize sonic loss but also are immune to
induced noise, especially for installations using
A one piece RCA-to-XLR adapter is available
from Krell Industries, to allow single-ended oper-
ation using the balanced XLR inputs.
The following steps describe how to connect
cables to the Full Power Balanced Amplifiers.
Krell Link uses standard five pin MIDI commu-
nication cables, sometimes referred to as MIDI
Plus cables. MIDI cables can be purchased
from your authorized distributor or dealer, or
from an audio supply store.
. Neatly arrange and organize wiring to and
from the amplifier and all components. Sep-
arate AC wires from audio cables to prevent
hum or other unwanted noise from being
introduced into the system.
. Connect the Krell CAST cables from your
CAST-enabled preamplifier/source compo-
nent to the left and right Krell CAST 4-pin
bayonet inputs on the amplifier back panel.
For balanced operation, connect the inter-
connect cable from your preamplifier to the
left and right balanced XLR input on the
amplifier back panel.
How to Connect Components
through Krell Link
. Turn all components off, using the back
panel power breaker switch. This ensures
that the components are synchronized when
the MIDI cable is connected.
2. Select the component to be the control com-
ponent. The control component must be in
plain view for proper remote control opera-
. Connect the speaker cables to the Full
Power Balanced amplifier’s speaker binding
posts, located on the amplifier back panel.
Speaker binding posts for both stereo and
monaural amplifiers accept spade lugs only.
3. Connect one end of the MIDI cable to the
Krell Link out connector on the back panel of
Krell Full Power Balanced X Series Power Amplifiers