Krell S-1500 - Manual (Page 6)

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 are not recom-
mended for connections requiring long cable runs.
Off
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 red, indicating that the
component is in the stand-by mode. This low power consumption
status keeps the audio and circuits at idle. Krell recommends 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
ready 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