Krell Industries Evolution One - Manual (Page 15)

(Operation continued)
Operational Mode
When the power/stand-by LEDs (4), the backlight (5), and the power meter scale (6)
are illuminated in blue, the amplifier is in the operational mode and ready to play
music.
Technology
Krell Current Mode
A proprietary Krell circuit topology in which the audio gain stages of a component
operate in the current rather than voltage domain. This unique technology provides
the component with exceptional speed, and a wide bandwidth.
Evolution Bias
A patented microprocessor control system that maintains Class A bias operation
regardless of musical demand. Class A bias is the most accurate method used to
amplify musical signals. Evolution Bias maximizes an amplifier’s efficiency both in
power consumption and heat generation.
11