PrimaLuna EVO 400 Tube Integrated Amplifier

The PrimaLuna EVO 400 represents the flagship integrated amplifier in the acclaimed EVO series, offering exceptional performance, flexibility and build quality for discerning audiophiles seeking reference-level valve amplification.

Exceptional Craftsmanship

Each PrimaLuna EVO 400 features meticulous handmade construction with a heavy-gauge, fully vented steel chassis finished with five coats, each hand-rubbed and polished. Weighing a substantial 31kg, this flagship integrated amplifier exemplifies PrimaLuna's commitment to uncompromising build quality.

Inside, you'll discover point-to-point wiring using only the finest Swiss silver wires—a level of detail typically reserved for far more expensive valve equipment. This attention to detail extends throughout the entire signal path, ensuring optimal signal integrity and sonic performance.

Premium Components

The EVO 400 incorporates custom-designed toroidal and EI-frame transformers, manufactured to exacting specifications from one of America's most prestigious transformer designers. Each transformer is fully encapsulated to ensure minimal hum and optimal isolation, delivering the renowned PrimaLuna sound signature that combines valve midrange magic with sparkling highs and deep, solid bass.

Additional premium components include:

• Motorised ALPS volume controls
• Nichicon and DuRoch polypropylene and tinfoil capacitors
• Superfast Philips rectifier diodes
• Ceramic tube sockets
• Gold-plated heavy-duty WBT-style speaker terminals with solid shaft construction
• Gold-plated panel-mounted RCA input jacks

Exceptional Performance

The EVO 400 delivers remarkable power output, offering up to 88 watts per channel in Ultra-Linear mode when equipped with KT150 valves. For those seeking the more refined, intimate presentation of triode operation, the amplifier still provides up to 50 watts per channel—more than sufficient for most high-quality loudspeakers.

Advanced Features

The EVO 400 offers an impressive array of user-friendly features:

• High-quality valve headphone amplifier that utilises the entire main circuit
• 100% shielded phonostage box for the optional PhonoLogue moving magnet circuit
• Adaptive Auto Bias™ circuit that monitors and smoothly adjusts tube bias continuously
• High/low bias switch for easy optimisation with EL34, KT88, KT120, or KT150 valves
• PTP™ (Power Transformer Protection) circuit to prevent damage from overheating
• SoftStart smart circuit design for extended component life
• Improved output-stage protection circuitry with relay
• Dedicated stereo/mono subwoofer output

Technical Specifications

• Model: EVO 400-1 for EL34/KT88/KT120/KT150
• Power Output (Ultra-Linear): 70/72/85/88 Watts per channel (tube dependent)
• Power Output (Triode): 38/40/45/50 Watts per channel (tube dependent)
• Frequency Response: 9 Hz – 50 kHz +/- 1 dB, 8 Hz – 68 kHz +/- 3 dB
• THD with AABB: < 0.1% @ 1W; < 2% @ Rated Power
• S/N Ratio: 90 dB – 98 dB A Weighted
• Dimensions: 405 x 385 x 205 mm (L x W x H)
• Weight: 31 kg
• Inputs: 5 pairs Stereo RCA, 1 pair Home Theatre Input
• Outputs: 4 & 8 Ohm Speaker Taps, Tape, Stereo/Mono Sub, Headphone
• Tube Complement: 8 x EL34, 6 x 12AU7
• Damping Coefficient: 7 KD (1 kHz)

Expert Acclaim

"THE PRIMALUNA EVO 400 INTEGRATED SURPASSES ITS PREDECESSOR, THE DIALOGUE PREMIUM HP INTEGRATED, THEREBY INHERITING THE THRONE OF THE BEST INTEGRATED TUBE AMPLIFIER IN THE WORLD" - Max Delissen, Music Emotion

"PrimaLuna's EVO 400 is a work of art. If you're on the hunt for a world-class integrated tube amp for less than five figures, it's hard to imagine how you could do better!" - Rogier van Bakel, Stereophile

Experience the remarkable craftsmanship, flexibility, and musicality that have earned the PrimaLuna EVO 400 its reputation as one of the finest integrated valve amplifiers available. Visit our demonstration rooms to discover why leading audio critics consider this amplifier a reference-level component at its price point.