The EVO 400 Tube Preamplifier is PrimaLuna’s flagship control center, designed for reference-level two-channel systems built with separates. Featuring a true dual-mono architecture and tube rectification, it delivers exceptional transparency, ultra-low noise, and a highly dimensional, lifelike soundstage.
Built with premium components and advanced power design, it pushes performance beyond the EVO 300 with greater refinement, detail, and silence. Its combination of tube purity, precision engineering, and handcrafted construction results in a highly natural, immersive listening experience with outstanding depth and realism.
Key Features
-
All-tube preamplifier (reference-level design) for maximum musicality and signal purity
-
Dual-mono topology (two independent preamps in one) for superior imaging and soundstage
-
Tube rectification (2 x 5AR4) lowering noise and enhancing tonal richness
-
6 x 12AU7 tubes in gain and driver stages for depth and harmonic detail
-
AC Offset Killer (exclusive) reducing transformer noise for a blacker background
-
Dual toroidal power transformers (potted & shielded) for ultra-low noise and stability
-
Swiss-made silver-plated OCC wiring (EVO 400 level) for higher clarity and speed
-
Takman resistors + premium capacitors for improved linearity and musicality
-
Point-to-point hand wiring for maximum signal integrity
-
ALPS Blue Velvet analog volume control for precise, noise-free operation
-
SuperQuiet relay-based input switching eliminating noise and crosstalk
-
Balanced XLR + RCA inputs/outputs + HT Bypass for flexible integration
-
SmartGain (~10 dB) for extremely low noise floor and better system matching
-
No DAC / no phono stage to preserve purity and long-term upgradeability
