Krell Industries 400 用户手册

Dear Audio Enthusiast,

Thank you for your purchase of a Krell Evolution Series amplifier.

Evolution Series amplifiers continue my quest for amplifiers that deliver absolute

truth in music reproduction. Active Cascode Topology is a unique circuit technique

that minimizes distortion by applying from 2 to 3 times more active devices to

each gain stage. The attributes of this topology is shared throughout the Evolution

Series amplifiers. 

Krell amplifiers are best known for their ability to drive any loudspeaker to sound

its best, without regard to impedance or efficiency. I believe that linearity, an

amplifier’s ability to output an exact duplicate of the input signal, is the ultimate

measure of that amplifier’s work. At Krell, I drive amplifier designs toward the com-

mon goal of linearity, through the rigorous application of Krell design principles

that focus our efforts on four major performance factors: distortion, bandwidth,

output impedance, and current capability. The Evolution Series amplifiers are a

synthesis of these factors.

The Evolution Series amplifiers use Evolution CAST technology, for superior per-

formance and very low noise.

I hope that you enjoy your new Evolution Series amplifier.

Sincerely,

Daniel D’Agostino

Chief Executive Officer