The EVO 400 Tube Integrated is PrimaLuna’s flagship all-tube amplifier, designed for reference-level two-channel systems. Combining a tube preamp and power amp in one chassis, it delivers exceptional musicality, scale, and control, pushing tube performance to its highest level within the EVO lineup.
With 70W per channel in Ultra-linear mode and 38W in Triode, it offers both power and flexibility—allowing users to switch between dynamic, extended performance and a warmer, more intimate presentation at the touch of a button. Built with oversized custom transformers and point-to-point wiring, it achieves wide bandwidth, low noise, and a highly natural, immersive sound.
Key Features
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All-tube integrated amplifier (preamp + power amp) for a complete high-end hi-fi solution
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70W per channel (Ultra-linear) / 38W (Triode) for power and tonal flexibility
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Triode / Ultra-linear switching (remote controlled) to tailor sound character instantly
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Adaptive AutoBias™ for automatic tube adjustment, longer lifespan, and low maintenance
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Custom super-wide bandwidth output transformers for deep bass and extended highs
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Point-to-point hand wiring (Swiss-made OCC copper) for maximum signal integrity
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Transformer-coupled subwoofer output for seamless integration and improved dynamics
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All-tube headphone amplifier (high-end design) for premium private listening
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Bad Tube Indicator + protection circuit for easy maintenance and reliability
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No built-in DAC or phono stage to maintain purity and long-term flexibility
