Filter
Top Products
The Full Power Balanced X Series consists of
three stereo amplifiers, the Full Power Bal-
anced 700cx, 400cx, and 300cx Stereo Power
Amplifiers and three monaural amplifiers, the
Full Power Balanced 750Mcx, 450Mcx, and
350Mcx Monaural Power Amplifiers. Installa-
tion, connection, and operation of all amplifiers
in the Full Power Balanced series are identical;
however, a pair of Full Power Balanced Monau-
ral amplifiers are required for stereo operation.
Full Power Balanced amplifiers can be config-
ured to accommodate any sophisticated music
or home theater system and can be operated
by an optional remote control or through the
remote control of other Krell components.
This owner’s reference manual contains impor-
tant information on placement, installation, and
operation of the Full Power Balanced ampli-
fiers. Please read this information carefully. A
thorough understanding of these details will
help ensure satisfactory operation and long life
for your Full Power Balanced amplifier and
related system components.
Following are the definitions of key terms used
in your owner’s reference manual.
CONFIGURATIONS
Krell Link
A method of synchronizing remote control oper-
ation for Krell systems that include multiple pre-
amplifiers, amplifiers, and associated compo-
nents. When Krell Link in/out connections are
used, the remote capabilities of the linked com-
ponents are controlled from one component,
called the control component. The linked com-
ponents respond to stand-by and operational
mode commands from the control component
via MIDI cables.
INPUT AND OUTPUT CONNECTIONs
Balanced
A symmetrical input or output circuit that has
equal impedance from both input terminals to a
common ground reference point. The industry
standard for professional and sound recording
installations, balanced connections have 6 dB
more gain than single-ended connections and
allow the use of long interconnect cables. Bal-
anced connections are completely immune to
induced noise from the system or the environ-
ment.
Krell Current Audio Signal Transmission
(CAST)
A proprietary Krell circuit technology for connect-
ing analog components, in which the audio
waveform is transmitted between components in
the current rather than voltage domain. The
speed and bandwidth provided by Krell CAST
and the CAST circuitry update, Krell CAST II,
yield accurate, realistic music reproduction. Krell
components connected via CAST and CAST II
perform as if they are all part of a single circuit.
Krell Full Power Balanced X Series Power Amplifiers 1
Definition of TermsIntroduction