ATOLL IN400 Evolution Reference Integrated Amplifier

The IN400 EVO is a high-performance integrated amp-preamp designed to elevate your listening experience. Built for exceptional musicality, its design combines advanced technical features with refined aesthetics. The chassis, crafted from robust 2 mm steel, provides a solid foundation, while the 10 mm brushed, micro-blasted, and anodized aluminum front panel showcases precision engraving for a sleek look. Machined from solid aluminum blocks, the side heatsinks are engineered to efficiently dissipate heat and minimize mechanical vibrations, ensuring optimal performance and durability. Every detail of the IN400 EVO is thoughtfully crafted to bring out the best in your music.

• Front face in 10 mm brushed, micro-blasted and anodized aluminum, high-precision engraving.
• Heatsink and buttons in billet aluminum.
• 2 mm steel frame.
• Two toroidal transformers: 1050 VA (audio) + 1.6 VA (control logic).
• Integral double mono structure:
  • Separate windings for the tracks.
  • 1 attenuator per channel (with switched resistors).
• Bipolar transistor input stages.
• Current sources with bipolar transistors and LEDs to ensure perfect voltage stability.
• Darlington transistor driver stages.
• Audio stages with perfectly symmetrical structure and very low counter-reaction.
• Power stages with rigorously matched MOS FET transistors (8 per channel).
• Precise adjustment of the balance, with the option to memorize settings.
• Choice of standby mode: Low consumption or preheating.
• Configurable button backlighting.
• High contrast OLED display: ON or OFF mode (after 5 seconds of inactivity).
• ATOLL global remote control delivered as standard.

CONNECTIVITY

Inputs
2 XLR inputs.
5 Line inputs: AUX or PHONO (option) CD, TNUER, DVD, TAPE.
1 BYPASS input.

Outputs
1 12V Trigger output.

Possibility of adding the DA200 digital board (optional):
2 Optical inputs (24 bits/192 kHz).
2 Coaxial inputs (24 bits/192 kHz).
1 asynchronous USB input (24 bits/192 kHz).
1 Bluetooth input.

Divers
1 Ø 6.35 mm headphone jack.

INTERFACE

Balance management.
Low-power OLED display.
Serial remote control (allowing control of all products: Integrated, CD Players, Tuner, DAC).

• Power: 2×160 Wrms / 8Ω – 2×300 Wrms / 4Ω
• Total capacitors: 96,680 µF
• Bandwidth (-3 dB): 5 Hz – 100 kHz
• Rise time: 2 µs
• Input impedance: 357 kΩ
• Sensitivity: 450 mV
• Signal-to-noise ratio: 100 dB
• Distortion rate at 1 kHz: 0.05%
• Standby consumption (low consumption): < 0.5 W
• Dimensions: 440×370×130 mm
• Weight: 19.5 Kg