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A Letter from Dan D’Agostino
Dear Audio Enthusiast,
Thank you for your purchase of the Evolution Two preamplifier.
My new Evolution products represent a watershed in my design philosophy and in
my quest for audio components that deliver absolute tr
uth in music reproduction.
The expanse of the Evolution T
wo monaural design has allowed me to explore
fully the advantages of current mode topologies. The resulting circuit utilizes no
feedback and has a bandwidth of 2 MHz.
I have always been fascinated by the artistry inherent in great musical performanc-
es, and my new Evolution Two preamplifier delivers the these performances in
their entirety, unaltered, to the amplifier. At the same time, the Evolution Two pre-
amplifier provides the flexibility and control necessary for the listener to thoroughly
enjoy a high performance audio system. It is my pleasure to make the Evolution
products available to you.
The preamplifier plays a vital role in audio playback. At no other point in the repro-
duction process is the music so vulnerable to change. The signal level at the pre-
amplifier stage is small, and is particularly susceptible to noise and distortion. In
order to solve this problem, the Evolution Two employs Krell Current Mode gain
stages from input to output, and Current Audio Signal Transmission (CAST)
receivers and transmitters. Unprecedented in Krell design history, these unique
topologies combine in the Evolution Two preamplifier to form a circuit that has no
audible sonic signature.
The Evolution Series represents a new direction for Krell, where breakthrough cir-
cuit topologies also represent the vanguard in convenience and control. Sophisti-
cated communication cir
cuitr
y allows from two to eight preamplifiers to be linked
to a single master from which all user interface is accomplished. The Evolution
T
wo Monaural Pr
eamplifier is designed to complement per
fectly the Evolution One
Monaural Power Amplifier
. Combine the Evolution One and T
wo with my new
LAT-1000 loudspeakers, and experience the extraordinary capabilities of an
Evolution System.
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