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About this gear
The Evolution 403 refines Krell's Evolution series into a leaner, more accessible format without sacrificing the brand's core amplification philosophy. It appeals to committed high-end enthusiasts who demand reliable power and control but within a slightly more manageable footprint than flagship monoblock designs.
About Krell
Founded in 1980 by Dan D'Agostino in Orange, Connecticut, Krell Industries helped define the American high-end audio movement of the 1980s and 1990s. The company became synonymous with massive, uncompromising power amplifiers that could drive any loudspeaker to its limits — and beyond. Krell amplifi...
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