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9
Definition of Terms
The following are definitions of key terms used in this owner’s reference:
Inputs and Outputs
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 profes-
sional and sound r
ecording installations, balanced connections have 6 dB more
gain than single-ended connections and allow the use of long interconnect cables.
Balanced connections ar
e completely immune to induced noise from the system
or the environment.
CAST and Evolution CAST
Krell Current Audio Signal Transmission, or CAST, is a proprietary Krell circuit tech-
nology for connecting analog components, transmitting the audio waveform
between components in the current domain rather than in the voltage domain. The
speed and bandwidth pr
ovided by Krell CAST and its circuitry update, Evolution
CAST, yield accurate, realistic music r
eproduction, enabling connected compo-
nents to perform as if they are all part of a single circuit. CAST and Evolution CAST
are balanced connections, and reject induced noise.
Single-ended
A two-wire input or output circuit. Single-ended connections are not recommend-
ed for connections requiring long cable runs. Use care when using single-ended
connections, because the ground connection is made last and broken first. Turn
the system off/on prior to making or breaking single-ended connections.
Operation
Off
When the power status indicator is not illuminated, the amplifier is of
f.
Stand-by
A low-power-consumption status that keeps the audio and power supply circuits
at idle. The power status indicator is illuminated in red, when the amplifier is in
stand-by mode. Krell recommends leaving the amplifier in stand-by mode when it
is not playing music.
Operation
When the power button is pressed, and the power status indicator is illuminated in
blue, the amplifier is in operational mode and ready to play music.
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