About the Atoll IN400 Evolution Integrated Amplifier

Product Description

The Atoll IN400 EVO is an integrated amp-preamp with high musical capacity. The concept is based on technical and aesthetic choices dedicated to optimal musicality. Mechanically, the chassis is made of 2 mm steel, and the front face is 10 mm aluminium, brushed, micro-blasted, and anodized, with high-precision engraving. The side heatsinks are machined from solid aluminium blocks to absorb mechanical vibrations and ensure perfect heat dissipation.

Features

  • Front face in 10 mm brushed, micro-blasted and anodised aluminium, high-precision engraving.
  • Heatsink and buttons in billet aluminium.
  • 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 MOS FET transistors (8 per channel) rigorously matched.
  • Precise adjustment of the balance, the possibility of memorizing it.
  • Possibility of choosing the standby mode: Low consumption or preheating.
  • Configurable button backlighting.
  • High contrast OLED display: ON or OFF mode (after 5 seconds of inaction).
  • ATOLL global remote control delivered as standard.
  • The IN400 EVO can receive the following optional cards:
            – DA100 and DA200.
            – P50 and P100.

Specifications

Inputs: - 2 XLR inputs.
- 5 Line inputs: AUX or PHONO (option), CD, TUNER, 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.
Various: - 1 Ø 6.35 mm headphone jack.
Power: 2×160 Wrms / 8Ω – 2×300 Wrms / 4Ω
Total Of 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): < 0.5 W
Dimensions: 440×370×130 mm
Weight: 19.5 Kg
Optional Boards Available:
Phono Board on the AUX Input (Choice of): - P100 (configurable MM or MC).

- P50 (MM).
Digital Board (Choice of): - DA200:
- 2 Coaxial inputs (24 bits/192 kHz).
- 2 Optical inputs (24 bits/192 kHz).
- 1 Bluetooth receiver.
- 1 USB-B input: PCM & DSD.
XMOS Specific Driver:  See manufacturer website
Note: Using the USB input of the optional DAC board requires downloading a specific driver for Windows computers.
- Driver: XMOS-Stereo-USB-Audio-Class2-Driver-30BB_v4.13.0.exe.
- Not required for MAC and Linux.

FAQs

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