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6 Krell S–1500 Multi-channel Amplifier
Following are the definitions of key terms used in this owner’s ref-
erence.
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 instal-
lations, balanced connections have 6 dB more gain than single-
ended connections, and allow the use of long interconnect cables.
Balanced connections are less susceptible than single-ended con-
nections to induced noise from the system or the environment.
Single-ended
A two-wire input or output circuit. Use care when using single-
ended connections as the ground connection is made last and
broken first. Turn the system off prior to making or breaking single-
ended connections. Single-ended connections ar
e not recom-
mended for connections requiring long cable runs.
Of
f
When the AC power cord is not plugged into the wall, the front
panel LED is not illuminated and the component is off.
Stand-by Mode
When the AC power cord is plugged into the wall, the front panel
stand-by and power LED (2) illuminates r
ed, indicating that the
component is in the stand-by mode. This low power consumption
status keeps the audio and cir
cuits at idle. Kr
ell r
ecommends leav
-
ing the component in the stand-by mode when it is not playing
music.
Operational Mode
From the stand-by mode, when the power button on the front
panel is pressed and the front panel stand-by and power LED (2)
illuminates blue, the component is in the operational mode and
r
eady to play music.
Krell Current Mode
A proprietary Krell circuit topology in which the audio gain stages
of a component operate in the current domain, rather than the
voltage domain. This unique technology provides the component
with exceptional speed and a wide bandwidth.
Definition of Terms
INPUT AND OUTPUT
CONNECTIONS
OPERATION
TECHNOLOGY