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About the EVO 403
The EVO 403 is a flagship three-channel power amplifier from Krell's Evolution series, engineered for audiophile-grade home theater and multi-channel music playback. It delivers 400 watts per channel into 8 ohms, 800 watts into 4 ohms, and 1600 watts into 2 ohms, with all channels driven, ensuring robust performance even with demanding loudspeakers. The amplifier utilizes Krell's CAST circuitry, which minimizes signal degradation by transmitting audio as a current rather than a voltage, resulting in lower distortion and improved sonic transparency. The Active Cascode Topology further reduces global negative feedback, contributing to a more open, detailed, and natural sound. The EVO 403 is built around a massive 6000 VA power supply with extensive electrical and magnetic shielding, advanced line conditioning, and microprocessor monitoring for reliability and protection. Its construction is heavy-duty, with a weight of 175 lbs (unit only), and it offers both balanced (XLR) and single-ended (RCA) inputs, as well as CAST connectivity for system integration.
Specifications
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